Patents Issued in August 1, 1995
  • Patent number: 5437211
    Abstract: In a preferred embodiment, a nut ejecting apparatus for a wrench socket of the type including a generally elongate, hollow, cylindrical body portion having axially aligned nut receiving and shank receiving chambers defined at opposite ends thereof with an intermediate chamber axially aligned with and joining said nut receiving and shank receiving chambers, the nut receiving chamber being dimensioned to receive therein a threaded nut and the shank receiving chamber being dimensioned to receive therein a shank of a wrench, the intermediate chamber being cross-sectionally coextensive with the nut receiving chamber and being hexagonal in cross-section, the nut ejecting apparatus comprising: a first plug to be disposed in the intermediate chamber near the shank receiving chamber and to be positionally fixed therein; a second plug to be disposed in the intermediate chamber and axially moveable back and forth therein and into the nut receiving chamber; the first and second plugs having hexagonally shaped head portio
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: August 1, 1995
    Assignee: Innovative Achievements, Inc.
    Inventor: James P. Wolfe
  • Patent number: 5437212
    Abstract: A ratcheting driver handle has a ratchet body press-fitted axially in one end thereof, the body defining a socket which receives a gear for rotation coaxially with the handle. The socket also receives two pawls respectively disposed above and at opposite sides of the axis and spring-biased into engagement with the gear. A selector cap rotates on the housing and carries a first pin for driving the pawls respectively out of engagement with the gear, depending upon the direction of rotation, to control the ratchet direction. A second pin on the cap engages an over-center leaf spring mounted in the socket below the gear for resiliently retaining the mechanism in either of the forward or reverse conditions. A driver bit has a flattened end which is received through an axial bore in the cap and into a complementarily shaped bore through the gear for rotation therewith, being frictionally retained in place by a retaining ring.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: August 1, 1995
    Assignee: Snap-on Incorporated
    Inventors: Christopher D. Thompson, Joseph R. Hoepfl
  • Patent number: 5437213
    Abstract: A device for manufacturing uniform sheets from paper panels having a cutter roller which has, at its circumference, at least one pair of blades which interact with a stationary counter blade. Each blade is individually adjustable and is fastened to a mounting surface of a prismatic recess wherein the mounting surface extends parallel to the rotation axis of the cutter roller. Each blade is adjustable by way of a feeding member which acts perpendicularly on the blade for radial adjustment of the blade.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: August 1, 1995
    Assignee: Grapha-Holding AG
    Inventor: Helmut Schulz
  • Patent number: 5437214
    Abstract: A miter saw includes a support mechanism for supporting a miter saw unit relative to a base in such a manner that the miter saw unit is both vertically and laterally pivotable. A position determining mechanism serves to selectively determine the position of the saw unit at any of positions including a vertical position where a saw blade is positioned substantially vertically relative to the base, and leftward and rightward pivoted positions where the saw blade is inclined laterally leftwardly and laterally rightwardly from the vertical position by a predetermined angle, respectively. The position determining mechanism includes movable side stopper members and fixed side stopper members on which the movable side stopper members abut, respectively. The movable side stopper members are mounted on a movable member which pivots laterally with the miter saw unit. The fixed side stopper members are mounted on a fixed member which is non-laterally pivotally movably mounted on the base.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: August 1, 1995
    Assignee: Makita Corporation
    Inventors: Katsuhiko Sasaki, Mitsuyoshi Ninnomi, Yoshinori Shibata
  • Patent number: 5437215
    Abstract: An ultrasonic cutting device includes a transducer, an ultrasonic horn and a cutting blade. The transducer generates ultrasonic vibrations in a direction having a longitudinal axis, and the ultrasonic horn has a nodal point and at least three projections extending, respectively, to vibrating faces equidistantly away from and symmetrically about the nodal point, one of the vibrating faces being connected to the transducer so that, in operation, the ultrasonic horn is vibrated. The cutting blade is connected to one of the vibrating faces of the ultrasonic horn which is not connected to the transducer and is positioned in a plane transverse to the longitudinal axis of vibrations so that, in operation, the blade is vibrated.
    Type: Grant
    Filed: August 11, 1993
    Date of Patent: August 1, 1995
    Assignee: Nestec S.A.
    Inventor: Francis F. Hamilton
  • Patent number: 5437216
    Abstract: A universal hydraulic stop valve has housing having check valves in a check valve bore. A needle in needle bore has spaced apart seals which may alternately seal against valve seats on adjustable knobs, with movement of the needle, which may be mechanically linked to a machine element moved by a hydraulic actuator. The universal hydraulic valve sets accurate starting and stopping positions, and also provides for gradual feathered stops.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: August 1, 1995
    Assignee: Leonard Studio Equipment, Inc.
    Inventor: Leonard T. Chapman
  • Patent number: 5437217
    Abstract: The invention relates to a motor vehicle pneumatic brake booster, comprising a casing (10) inside which a piston (20) formed from a rear tubular part (22) supporting a skirt (14) defines, with the aid of an unrolling membrane (12), a front chamber (16), permanently connected to a vacuum source and a back chamber (18) alternately connected to the front chamber (16) or to the atmosphere via a valve (40) actuated by a control rod (34) capable of bearing, by a plunger (32), on one of the faces of a reaction disk (58) securely fastened to a thrust rod (56), the valve comprising a valve element interacting via an active part (40) with a first valve seat (32a) formed on the plunger (32) and a second valve seat (20a) formed on the piston (20), the valve element (40) normally being stressed forward by an elastic element (44).
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: August 1, 1995
    Assignee: AlliedSignal Europe Services Techniques
    Inventors: Philippe Castel, Guy Meynier
  • Patent number: 5437218
    Abstract: Diasphragm pump having a delivery rate which can be continuously adjusted between a zero value and a maximum value, comprising:a continuously rotating eccentric drive member (6);a connecting rod (5) with a connecting-rod big end (11-14) fitted with a bearing (10) receiving, so as to rotate freely, the member (6) and the other end of which is coupled to a central area of the diaphragm (2);releasable coupling means in order to couple, in a selective manner, the connecting-rod big end to the member (6) during a desired fraction of stroke, which can be continuously adjusted by adjustment means (16-19).
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: August 1, 1995
    Assignee: PCM Pompes
    Inventor: Jean-Paul Papin
  • Patent number: 5437219
    Abstract: A multi-thickness diaphragm member including clamping sections that are sized for assembly of the diaphragm in standard air brake valve devices and a flexure portion intermediate the clamping sections that forms a convolution during assembly. The thickness of the flexure portion is less than that of the clamping sections to facilitate formation of the diaphragm convolution without wrinkling, in order to alleviate progressive fatigue failure. The thin flexure portion of the diaphragm is joined with the respective clamping sections through a tapered area, which lies entirely outside of the annular space in which the diaphragm convolution forms during assembly, to thereby maximize the radius of curvature of the convolution for optimum utilization of the flexure portion in forming the convolution.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: August 1, 1995
    Assignee: Westinghouse Air Brake Company
    Inventors: Daniel G. Scott, William K. Mong, Willard P. Spalding
  • Patent number: 5437220
    Abstract: This invention relates to a piston with its skirt being cut to locate four sets of bearing pads and circulating bearing balls. Each pad has been milled to have a doughnut shaped groove with half of a circle cross-section to hold the ball bearing in circulation during the piston reciprocating motion. Two lines of bearing balls on each side of a piston pin are in contact with the cylinder liner and share the piston thrust load. Lubrication of the ball bearings is ensured by oil slots through the piston skirt under the oil ring groove to the top of the grooves of the bearing pads and to the exposed bearing balls in rolling contact.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: August 1, 1995
    Inventors: Chi Cheng, Michael W. Cheng
  • Patent number: 5437221
    Abstract: In a grate the bars (1, 2, 3, 4, 5, . . . ) of S-shaped cross section are combined to form two groups of bars (1, 3, 5, 7, . . . ; 2, 4, 6, 8, . . . ). The two groups form moving units longitudinally displaceable relative to each other. The profiling of the bars prevents fat from dripping into the fire. Pulling apart the two groups of bars exposes all surfaces of the bars so that they are easy to clean.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: August 1, 1995
    Inventor: Kurt Schwod
  • Patent number: 5437222
    Abstract: A grill and oven combination for cooking food comprising a container having a hollow interior bounded by a bottom portion and walls extended upwards therefrom to define an opening with one of the walls having a hole disposed thereon near the bottom portion; a lid pivotally connected to the container near the opening thereof and positionable in an opened orientation for allowing access to the interior of the container and a closed orientation for preventing access to the interior of the container; a heat-conductive liner disposed within the interior of the container along its inner periphery with a hole disposed thereon axially aligned with the hole on the wall of the container to define an access hole adapted for allowing combustible materials for cooking food to be added and combusted materials from cooking food to be removed; and a grill disposed within the liner adapted for holding food thereon for cooking.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: August 1, 1995
    Inventor: Mae F. Franklin
  • Patent number: 5437223
    Abstract: An apparatus for closing the seam of a wound bar-shaped dough body being conveyed on a conveyor, comprising a pair of standing conical rolls mounted over and across the conveyor, between which rolls the dough body is made to travel. This simple mechanism makes it much easier to automatically provide high-quality bar-shaped products.
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: August 1, 1995
    Assignee: Rheon Automatic Machinery Co., Ltd.
    Inventor: Torahiko Hayashi
  • Patent number: 5437224
    Abstract: The present invention relates to a method for the removal, addition, or exchange of marbling fat within meat pieces, an apparatus for practicing the method, and the meat product produced by practicing the method using the apparatus. The apparatus includes a reservoir tank, a temperature control for maintaining a constant, predetermined temperature within the reservoir tank, a hollow needle for piercing a raw meat workpiece, conduit for connecting the reservoir tank to the hollow needle, a reciprocating structure for reciprocating the hollow needle, a stage to hold the meat workpiece, and a die to remove fat which is adhered to the needle as the needle is reciprocated through the meat workpiece.
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: August 1, 1995
    Inventor: Arthur I. Morgan
  • Patent number: 5437225
    Abstract: A device for removing pits from cherries cleanly with a single hole comprising a chain having a circular cross section and having a first end and a second end, the chain being formed of stranded wires; the second end being formed with a ring positioned about a central extent of the chain for providing a loop to be used as a handle during operation and use; and the first end of the device being configured into a pointed remote end and a central aperture with one flat surface for contacting a prying out the pit from a cherry when the pointed end is inserted into the stem end of the cherry.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: August 1, 1995
    Inventor: Violet E. Hicks
  • Patent number: 5437226
    Abstract: A round baler having a pickup, a chamber for forming a cylindrical package of crop material and a generally transverse opening for feeding crop that has been picked up into the chamber. The baler includes a twine handling assembly having at least one twine arm with a twine dispensing end from which twine is dispensed in the vicinity of the transverse opening for applying a plurality of helical wraps on the cylindrical package of crop material formed in the chamber. A twine cutting mechanism for cutting the twine, cooperates with a unique twine guide arrangement mounted to guide the twine to the cutting mechanism after a predetermined amount of twine has been dispensed.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: August 1, 1995
    Assignee: New Holland North America, Inc.
    Inventor: Robert A. Wagstaff
  • Patent number: 5437227
    Abstract: A doctor arrangement for a rotary intaglio printing machine comprises a doctor to remove excess ink from the plate cylinder. The doctor is in the form of a band which extends parallel to the axis of rotation of the plate cylinder against which it is pressed by a doctor bar. The doctor band is so flexible that it can be wound on and unwound about axes which extend transversely to its longitudinal direction and the doctor band is so mounted and guided at the doctor bar that it is displaceable relative thereto in the longitudinal direction, the length of the doctor band being substantially greater than the axial length of the plate cylinder. A respective winding device for winding on and unwinding the doctor band is arranged in the region of each of the axial ends of the plate cylinder. A drive means displaces the doctor band along the doctor bar during the printing operation when the doctor band is unwound from the one winding device and wound on to the other winding device.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: August 1, 1995
    Assignee: U. E. Sebald Druck und Verlag GmbH
    Inventor: Werner Straubinger
  • Patent number: 5437228
    Abstract: The method and apparatus for printing adhesive backed media, such as a label strip or a multi-part form, includes an endless belt which is rotatably mounted to a support frame and is advanced along an endless path of travel such that a label strip may be fed from a wound roll to the endless belt with the adhesive backed side of the label strip directly in contact with the endless belt, and indicia may be imprinted upon the opposite side of the label strip. The printing apparatus includes a platen mounted within the endless belt and a print head positioned in alignment with the platen so that the endless belt and the label strip carried by the endless belt extend between the print head and the platen so as to permit printing on the label strip. The printing apparatus may include a stripping roller mounted at the downstream end of the endless belt and having a relatively small radius to facilitate the release of the adhesive backed label strip from the endless belt.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: August 1, 1995
    Assignee: Datasouth Computer Corporation
    Inventor: David M. Uland
  • Patent number: 5437229
    Abstract: Slurry and spray dried azide-based gas generant intermediates are made having a hydrazoic acid content of less than about 3.times.10 EXP(-3) M/L, a pH of greater than 8.0 up to about 12.5, and impurity metal ions Ca, Mg, Pb, Fe, Mn and Cu, each below about 25 ppm. These intermediates are made by slurrying powdered ingredients of the azide and oxidizer/reactant in water, wet grinding the slurry and spray drying to form a particulate material which is molded into pellets or tablets which are useful as the gas generant in vehicle crash bags or inflators. The basicity of the water is adjusted to a pH of greater than 8.0 up to about 12.5, preferably about 10, by the addition of a base, such as NaOH, followed by the addition of such solid ingredients as S, MoS.sub.2 and NaN.sub.3, and preferably the NaN.sub.3 is added last, whereby hydrazoic acid production is minimized. The contaminant Ca and Mg ions are minimized by softening the water supplied.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: August 1, 1995
    Assignee: Morton International, Inc.
    Inventors: Robert D. Taylor, Gary L. Smith, Ritchie Olsen
  • Patent number: 5437230
    Abstract: An unpowered air vehicle, i.e. a glider, which is air-launched from appreciable range, is densely packed with a large area, explosive net. At a pre-determined location, the net is extracted from the glider by a parachute and expanded completely before landing on the surface of the water or land that contains a large field of mines. The explosive material in the net is then detonated, destroying the mines covered by the net. The longitudinal ends of the net are attached to a folding, multi-arm framework designed to expand and thereby spread the net after separation from the glider. The spreading action is initiated by an extraction parachute which pulls the first frame from the air vehicle. The spreading action is completed by the second frame which is coupled to a brake mechanism in the glider that maintains tension throughout the net to complete the spreading of the net.
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: August 1, 1995
    Assignee: Leigh Aerosystems Corporation
    Inventors: Gordon L. Harris, Stephen L. Harris, Neil A. Levy
  • Patent number: 5437231
    Abstract: An overhead conveyor system with rolling conveyor carriages guided on rails. The pushers provided for moving the conveyor carriages out of the main track and onto a secondary track are provided with a claw which can be swung in a direction opposite to the direction of transport (T) into an upward-swung third position. In this position, a conveyor carriage which is blocked in the region of a switch and cannot be moved out of the track can be passed by the pusher without damage to the conveyor carriages or the overhead conveyor system. When the claw is swung upward, a flap is at the same time moved out laterally, which can serve as a signal for immediately stopping the conveyor system. The outwardly swung flap may assist maintenance personnel in finding the switch at which a conveyor carriage cannot be properly moved out of the line. The pusher includes a recess which is covered by a spring-loaded plate. The claw is fastened asymmetrically in the pusher so that it swings upward into the recess.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: August 1, 1995
    Assignee: Durkopp Adler Aktiengesellschaft
    Inventors: Paul Janzen, Winfried Suhling, Gerhard Schilling
  • Patent number: 5437232
    Abstract: A ballast plow assembly adapted for connection to a frame of a hopper-type railroad car having a series of openings from which ballast is gravitationally discharged and which is supported for rolling movement over tracks or rails by a pair of wheeled undercarriages. The ballast plow assembly includes a ballast plow that is pivotally connected to the frame of the railroad car in proximate relation to the wheels of a respective undercarriage and has a free end which is automatically movable into engagement with an upper surface of the tracks under the influence of gravity for clearing the upper track surfaces from ballast discharged from the railroad car and for generally distributing ballast across the track bed. The forward end of the ballast plow extends across the upper track surfaces and generally normal to the tracks. A lift mechanism is provided in combination with the ballast plow for removing the track engaging end of the ballast plow from engagement with the track.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: August 1, 1995
    Assignee: Miner Enterprises, Inc.
    Inventor: Norbert P. Borowski
  • Patent number: 5437233
    Abstract: A rail-cleaning locomotive for electrical toy and model trains with a cleaning unit including polishing disks rotated by an electric motor and lying on the rails, wherein the cleaning unit is disposed in a fore-part, coupled to the locomotive so that it can pivot about a vertical and slightly also about a horizontal axis, and is provided with a cleaning motor, which is separated from the driving motor of the locomotive, and wherein the polishing disks are constructed as cleaning wheels with guiding wheel flanges.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: August 1, 1995
    Assignee: Ernst Paul Lehmann Patentwerk
    Inventor: Wolfgang Richter
  • Patent number: 5437234
    Abstract: An assembly for securing a gondola (5) or chair of a cableway system to a spension bar (1), which is embodied on its lower end with a support device (2) that fits under a load-bearing structure (3) for the gondola (5) or chair, wherein at least one damping element (4) in the form of an inflatable vessel is disposed between the support device (2) and the load-bearing structure (3). At least two and in particular four mutually spaced-apart air or gas springs (4), on which the load-bearing structure (3) rests, are provided on the support device (2) (FIG. 1 ).
    Type: Grant
    Filed: May 5, 1994
    Date of Patent: August 1, 1995
    Assignee: Konrad Doppelmayr & Sohn Maschinenfabrik Gesellschaft m.b.H. & Co. KG
    Inventor: Herbert Duer
  • Patent number: 5437235
    Abstract: A computer work station comprises a fixed position work surface having an enlarged monitor opening therein, a recessed component support pan attached to the work surface under the monitor opening, and a raisable monitor support mechanism mounted in the component pan that supports the monitor platform. The monitor lift mechanism is an extendable folding frame that is counterbalanced with a spring mechanism to offset the weight of the monitor such that the monitor can be raised or lowered simply by lifting or lowering the monitor platform manually, with the monitor remaining in place after its position has been adjusted. The component pan provides a recessed support and storage space for the monitor and other components. An adjustable work surface is mounted at the front of the fixed work surface by means of an adjustable mounting mechanism located in the pan and having cantilever arms extending out of the pan. A separate docking station can be provided for a lap top computer.
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: August 1, 1995
    Assignee: Symbiote, Inc.
    Inventor: Travis M. Randolph
  • Patent number: 5437236
    Abstract: A multi-functional table with elevational capabilities comprising a base in a generally rectangular configuration having an upper surface and a parallel lower surface; a table top in a generally rectangular configuration having an upper surface and a parallel lower surface; a central cylindrical support having an upper end secured to the lower surface of the table top and having a lower end secured to the upper surface of the base, the support being formed of a tubular member of an enlarged diameter at the lower end and a tubular member of a reduced diameter at the upper end for being slidably received within the lower component; a pump including a foot pedal secured to the base adjacent to the lower component whereby reciprocation of the foot pedal will act to supply air to the space between the upper and lower components to thereby raise the upper component and the working level of the table; and a plurality of apertures formed in the table top and supplemental components adapted to be secured to the table
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: August 1, 1995
    Inventor: Harold R. Zeiner
  • Patent number: 5437237
    Abstract: A continuous pyrolysis system includes an enclosure which receives an influx material at an entrance thereto and discharges a pyrolysate at a discharge therefrom. The entrance directs influx material into the enclosure while evacuating oxygen from the influx material. A conveyor is provided within the enclosure transporting the influx material from the entrance to the discharge. Pyrolysis is caused by a series of heat sources overlying the conveyor belt, the heat sources each including a parabolic reflective surface to enhance radiation heat transfer into the influx material. The pyrolysate is discharged in solid form through an output auger, in liquid form through a liquid outlet and in gaseous form through a gas outlet. The continuous pyrolysis system includes controls to provide a speed of the conveyor belt, completeness of the pyrolysis process, temperature of the heat sources and maintenance of an anaerobic environment within the enclosure.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: August 1, 1995
    Inventor: John L. Digre
  • Patent number: 5437238
    Abstract: A continuous loop waist band (10) is placed in edge alignment with a garment body (11), and the garment parts are stretched about spindles (19, 20, 21 and 23). The spindles are moved away from one another so as to stretch the aligned edges of the garment parts. The edges of the garment parts tend to curl when stretched, and an edge decurler (84) removes the curl from the stretched garment parts as the edges approach the sewing machine needle (26). Edge guide (102) maintains the plies of material in overlying contact so as to make sure the curls do not reappear in the garment parts as the parts approach the sewing machine.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: August 1, 1995
    Assignee: Atlanta Attachment Company
    Inventors: Elvin C. Price, Preston B. Dasher, Gerald C. Valentine
  • Patent number: 5437239
    Abstract: In the proces of defining quilted fabric, non-stretchable, stretchable and interior layers of materials are wound on separate rollers. Then the layers are positively fed from the rollers to a bi-directional acting swing assembly wherein non-stretchable and interior materials are provided with zero elongation and the stretchable layer with 50 to 100 per cent stretch. Next, the arranged layers are sewn in sets of sinusoidal-like seam patterns. Finally the stretched layer is permitted to relax to a natural state wherein a series of puffs are formed in rows across the layer normal to stretch direction of the stretchable layer. Result: columns of puffs of even numbered rows are aligned with each other but are laterally offset with respect to puffs of odd numbered rows by a constant amount.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: August 1, 1995
    Inventor: Steven A. Blake
  • Patent number: 5437240
    Abstract: A bookmark for marking a page and line in a book. The bookmark includes an elongated planar body having an upper terminal portion that provides a relatively large flat surface for the display of matter such as decorative and whimsical designs each of which includes a dominant design element. The bookmark further includes a finger engaging indicator piece that substantially corresponds in size and shape with the dominant design element of the imprinted design and is slidably movable along a slit provided in the body from a first position overlying the design element to a second line marking position.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: August 1, 1995
    Inventor: Mike Miroyan
  • Patent number: 5437241
    Abstract: A differential pressure indicator includes a housing having first and second pressure ports for fluid and a bore communicating with the pressure ports. A piston is movable in the bore between an actuated and an unactuated position in response to a pressure differential between the first and second pressure ports. A sensor senses movement of the piston between the actuated and the unactuated positions. A fluid control mechanism varies the effective surface area of the piston communicating with the first pressure port when the piston is in the unactuated position in accordance with variations in temperature of fluid at one of the pressure ports. The indicator is thereby prevented from actuating at low temperatures at which the fluid has a high viscosity.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: August 1, 1995
    Assignee: Pall Corporation
    Inventors: Gary C. Rosenberg, Frank Gossett
  • Patent number: 5437242
    Abstract: A process and an apparatus for carrying out the process provides for the accurate and simple control of the melt level when pulling single crystals according to the Czochralski process. The process comprises disposing a mechanical reference mark above the melt in such a way that it causes a reflection from the melt surface. An image of the metal surface is then recorded, and with the aid of the recorded image the distance of the mechanical reference mark from the melt surface is determined. An actual signal proportional to this distance is then generated and is compared with a set point signal, and the melt level is changed as a function of any difference observed.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: August 1, 1995
    Assignee: Wacker-Chemitronic Gessellschaft fuer Elektronik-Grundstoffe mbH
    Inventors: Christian Hofstetter, Walter Berger, Werner Bauer, Bernd Mittelbach
  • Patent number: 5437243
    Abstract: Human-made diamond, as well as naturally found diamond, is a transparent, superhard, crystalline, and electrically nonconductive form of carbon. In this invention, an electrical current of supercritical density alone produces the transformation of graphite to diamond. The entire graphite-to-diamond transformation requires only a few millionths of a second. Using the principles of the invention, diamond can be produced in a variety of shapes, such as loose debris, rods, fibers, bars, dust, etc. In addition to diamond, Buckminster Fuller Balls, known also as C-60 carbon fullerines, are produced using the process and apparatus of the invention.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: August 1, 1995
    Inventor: Maciej J. Pike-Biegunski
  • Patent number: 5437244
    Abstract: The livestock watering tank includes a top, bottom and sidewall. The top wall has an opening for access to the water. The opening is closed by a float. The animal drinks by pushing the float down into the water with its mouth, causing the float to partially submerge so that water is exposed and may be drunk. The float rises back to its natural position after the animal finishes drinking. The float has a port for allowing water or other weighted substance to be introduced into it. The addition of the substance into the float generally neutralizes the buoyancy of the float with respect to the water in the tank, thereby decreasing the amount of force necessary for the animal to submerge the float for drinking.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: August 1, 1995
    Assignee: Agri-Engineering, Inc.
    Inventor: Carl Van Gilst
  • Patent number: 5437246
    Abstract: A cable loop is supported around each corner by a rotatable cable support with horizontal pulleys or other cable engaging device on the ends of spokes around the rotatable cable support, A central cylinder rotatably supported by a vertical rod may support the spokes or a pair of concentric rigid rings with the spokes piercing the rigid rings radially, The outer rigid ring may ride or a circular groove on roller bearings or the inner rigid ring may ride on a vertical rod, On straight cable runs, the trolley with the attached leash rides on a trolley vertical pulley wheel over the cable on the straight sections of the cable, At the corners, the trolley rides with one or two or four additional vertical pulley wheels on a single or double curved track below the rotatable cable support.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: August 1, 1995
    Inventor: Larry J. Noles
  • Patent number: 5437247
    Abstract: The present invention provides a mechanism device for preventing gas channeling between the sidewall and a heat exchange tube bundle located in the convection section of a horizontal tube fired heater while permitting in-situ repair of the sidewall refractory. The invention comprises a plurality of serially elongated plate members pivotably mounted on a tube and sized longitudinally to extend at a predetermined distance from the tube to the sidewall of the convection section of the heater, the number of plate members being sufficient to extend for substantially the length of the tube.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: August 1, 1995
    Assignee: Exxon Research and Engineering Company
    Inventors: Robert F. Dubil, John R. Peterson
  • Patent number: 5437248
    Abstract: A fire tube boiler having a combustion chamber equipped with a burner, and a group of fire tubes provided adjacent to the combustion chamber. The fire tube boiler further includes a heat exchanger disposed in the combustion chamber and serving for heat exchange with combustion flame from the burner. The combustion chamber is divided into a first combustion chamber and a second combustion chamber by the disposition of the heat exchanger. Furthermore, the heat exchanger is disposed in proximity to the burner so that the combustion flame in the first chamber is less than 1500.degree. C. and the combustion flame in the second chamber is between 1100.degree. and 1400.degree. C. Thus, the fire tube boiler allows further reduction in harmful exhausts such as NOx and CO.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: August 1, 1995
    Assignee: Miura Co., Ltd.
    Inventors: Tamotsu Miura, Masatoshi Miura, Osamu Higuchi
  • Patent number: 5437249
    Abstract: A water heater is shown having a closed tank with an opening for receiving a combustion chamber, the interior of the tank normally containing water under pressure. A combustion chamber is located within the tank interior and includes a body portion having an open end adjacent the tank opening into which combustible fuel is introduced and ignited in the presence of air to create products of combustion. A flue collector is mounted on the exterior of the closed tank and has an annular chamber surrounding a flue opening for receiving the products of combustion for exhaustion to the atmosphere. An outer wall portion closes one end of the flue opening to provide a closed compartment within the collector which can be pressurized by an external blower. An inner wall portion of the collector has an opening which communicates with the combustion chamber.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: August 1, 1995
    Assignee: PVI Industries, Inc.
    Inventors: Charles L. Adams, Richard C. Adams
  • Patent number: 5437250
    Abstract: Rotary power system. The system includes a source of hydrocarbon fuel which is supplied to a plasmatron which reforms the fuel into a hydrogen-rich gas. An internal combustion engine is connected to receive the hydrogen-rich gas from the plasmatron. The engine powers an electrical generator and the generated electricity is connected to the plasmatron. In one embodiment, the engine also receives hydrocarbon fuel along with the hydrogen rich gas. The combination of plasmatron and internal combustion engine results in lowered exhaust emissions. The plasmatron may include water plasmatrons and partial oxidation plasmatrons.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: August 1, 1995
    Assignee: Massachusetts Institute of Technology
    Inventors: Alexander Rabinovich, Daniel R. Cohn, Leslie Bromberg
  • Patent number: 5437251
    Abstract: A variable-compression internal-combustion engine has a two-stage cylinder with a relatively large diameter at a first-stage, supercharge end, which is also a power-takeoff end, than at a second-stage, combustion end of the cylinder. Intake air is drawn into the first-stage, supercharge end of the cylinder by a matching larger-diameter, first-stage, supercharge end of a two-stage piston during a compression stroke of a two-stroke cycle of the two-stage piston. During a power stroke, intake air is directed into and contained under pressure in an air-transfer passage that is positioned circumferentially and externally around an outside periphery of a bottom end of the first-stage cylinder.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: August 1, 1995
    Inventors: Richard R. Anglim, Hazel L. Halfman
  • Patent number: 5437252
    Abstract: A substantially cylindrical rotary plug for enabling admission of a fluid in a combustion chamber of an internal-combustion engine, including a least one bent inner channel through which the fluid flows, with each channel having an inlet port located on the lateral face of the plug, an outlet port to he cylindrical surface of the rotary plug, and a bend for holding back heavier constituents of the fluid under an effect of a centrifugal force. A thickness of a wall of the rotary plug between an outer face of the channel and an outside of the rotary plug is relatively thin at the level of the bend. At least one of the outlet ports of at least one of the channels and at least one of the bends to the same cross-section of the rotary plug.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: August 1, 1995
    Assignee: Institut Francais du Petrole
    Inventor: Stephen Glover
  • Patent number: 5437253
    Abstract: A system for controlling the transient torque output of a multicylinder, variable displacement, spark-ignited, fuel injected automotive internal combustion engine during periods when the effective displacement of the engine is being changed includes a spark timing controller, a throttle controller for positioning an intake air throttle, an engine cylinder operator for deactivating and reactivating at least some of the engine's cylinders, and an engine controller having a processor for selecting the number of cylinders for operation and for operating the spark timing controller, the throttle controller, and the cylinder operator so that during any transition from operation with a first number of activated cylinders to operation with a second number of activated cylinders, the processor will alter the spark advance and control the amount of air entering the engine cylinders so that the torque output of the engine will remain relatively unchanged during the transition.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: August 1, 1995
    Assignee: Ford Motor Company
    Inventors: Roger L. Huffmaster, Jerry D. Robichaux
  • Patent number: 5437254
    Abstract: An igniting apparatus for an internal combustion engine includes an ignition time calculating section for generating ignition time data Km based on a reference position signal, a section for measuring a previous cycle reference interval required time Tp2 between reference positions associated with a target ignition time, a section for measuring a previous cycle period TN2 for one rotation of the engine through the reference positions, a section for calculating a load state KL2 of the engine based on the previous cycle required time period Tp2 and the previous cycle period TN2, a section for measuring a current cycle period TN4 for one rotation of the engine through the reference positions, and a section for converting the ignition time data Km into a time Ta controlled for the ignition time based on the load state KL2 and the current time period TN4.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: August 1, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takaharu Korenaga, Tsutomu Momoyama
  • Patent number: 5437255
    Abstract: A surface array of electrically actuated pulsed microscopic fuel jets arranged on the interior surface of a mixing chamber injects fuel into air to form a combustible air-fuel mixture. The jets are solid state units with no moving parts, which can be actuated individually or in groups, and the volume of fuel injected per each jet's firing pulse can be varied by changing the characteristics of the electrical actuating pulse. Having no moving parts and being electrically activated, the jets are intrinsically suited to direct computer control. By providing a large number of such jets and a means of their direct electronic control via negative feedback, fine control of the operating parameters of the combustion engine and a high degree of redundancy to compensate for the failure of individual jets is made possible. The lack of moving parts and the absence of a high pressure fuel supply system provide significant advantages in performance, cost, reliability, and safety over the prior art in fuel injection.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: August 1, 1995
    Inventors: Mark L. Sadley, David A. Dean
  • Patent number: 5437256
    Abstract: The invention relates to a method for checking the operability of a cyclically controlled regeneration valve in a tank venting system of a motor vehicle which utilizes the realization that during operation of the system significant pressure variations are generated in a discharge line arranged between an adsorption filter and the regenerating valve whenever the duty ratio of the regeneration valve is within a certain range. If the regeneration valve is operated at such a duty ratio, the pressure variations in the discharge line are recorded and the extreme pressure valves are determined in an evaluation device for a specified time period after which the difference between the maximum and the minimum pressures is determined and if this difference is below a predetermined threshold, the regeneration valve is indicated as being defective.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: August 1, 1995
    Assignee: Mercedes-Benz AG
    Inventors: Wolfgang Woletz, Hans Schroter, Klaus Schust, Hartmut Kolb
  • Patent number: 5437257
    Abstract: An evaporative emission control system of an internal combustion engine's fuel system including a vent valve. The vent valve provides a mechanism for closing the evaporative emission control system creating a pressure differential between system and atmospheric under various conditions whereby the system can be automatically diagnosed. The vent valve relieves pressure or vacuum in the system that exceeds a threshold necessary to detect the presence of leaks. The vent valve includes a vacuum actuator providing a low restriction flow path for system purges.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: August 1, 1995
    Assignee: General Motors Corporation
    Inventors: Roy A. Giacomazzi, Gregory E. Rich, Chester W. Przeklas, Kenneth W. Turner
  • Patent number: 5437258
    Abstract: A carburetor fuel atomizer comprising a carburetor having an input end and an output end for feeding gasoline to an internal combustion engine; a manifold having an input end and an output end, the input end of the manifold being in fluid communication with the output end of the carburetor, the manifold adapted to distribute fuel from the carburetor to the appropriate portion of an internal combustion engine; means to releasably couple the carburetor to the manifold with the output ends of the carburetor in fluid communication with the input end of the manifold; and an atomizer for dispersing the fuel leaving the carburetor prior to entering the manifold, the atomizer including a first gasket with an aperture therethrough coupled to the carburetor, a second gasket coupled to the input of the manifold, a screen fabricated of stainless steel positioned between the gaskets whereby fluid from the carburetor moving toward the manifold will be atomized prior to being fed to an internal combustion engine to increase
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: August 1, 1995
    Inventors: Edward F. Williams, Sylvia M. Williams
  • Patent number: 5437259
    Abstract: An internal-combustion-engine ignition device in which such components as the ion-current-detection unit are provided integrally with other ignition-device components to realize a simplified structure, thereby helping to attain a reduction in cost and an improvement in terms of layout and reliability, the internal-combustion-engine ignition device including: a distributor cap having a central electrode connected to an ignition coil, a plurality of peripheral electrodes respectively connected to the ignition plugs of cylinders and adapted to be selectively connected to the central electrode, and diodes each connected at one end to the peripheral electrodes and at the other end to the central electrode, the distributor cap having openings lodging the diodes for detecting an ion current generated upon combustion of air-fuel mixture inside the cylinders, caused by ignition of the ignition plugs.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: August 1, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazuya Hamada, Shigemi Murata
  • Patent number: 5437260
    Abstract: A cross bow includes a main string, a support engaged with and supporting a bow, a triggering device for cocking and firing the bow, a loading string attached to the bow and a hook device attached to the support and operable for receiving the loading string. The bow may be half-cocked by engaging the loading string with the hook device, and thereafter fully cocked with the main string. Another embodiment of the cross bow includes a support with two barrels therethrough, and two bows mounted on the support for separately launching projectiles such as arrows, balls, air gun pellets, or bullets, through the barrels. A magazine may be provided for each barrel to supply projectiles.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: August 1, 1995
    Inventor: Franklin H. King
  • Patent number: 5437261
    Abstract: A ball pitching device includes a ball feed tube mounted on support components which are adjustable about vertical and horizontal pivot axes to vary the horizontal and vertical positions of delivery of pitched balls relative to a practicing batter standing at the position of home plate. The device also includes a pair of ball projecting wheels rotated by electric motors the speeds of which are adjusted by controlling potentiometers. Eccentric cams are included in the support components for enabling incremental adjustments about the vertical and horizontal pivot axes, preferably without recognition by the practicing batter, to make incremental changes in the horizontal and vertical positions of delivery of pitched balls. The electric circuit of the drive motors also includes adjustable electric signal generators operatively connected to the support components providing for elevation adjustments, for effecting changes in motor speed in accordance with changes in elevation of the ball feed tube.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: August 1, 1995
    Assignee: Jugs, Inc.
    Inventors: Kerry K. Paulson, Charles E. Kerr, Paul A. Heinsch