Patents Issued in April 16, 1991
  • Patent number: 5007249
    Abstract: An auxiliary, portable storage and cooling unit in combination with a primary source of refrigerated air providing a secondary source of refrigerated air formed of a housing having an upper product storage compartment and a fan driven refrigerated air flow path including an air inlet duct for connection to the primary source of refrigerated air, an air inlet chamber, air distribution ducts, and air distribution chambers for feeding refrigerated air into the storage compartment.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: April 16, 1991
    Assignee: Cornerstone Products Inc.
    Inventor: Albert Van Druff, Jr.
  • Patent number: 5007250
    Abstract: A portable insulated cooling container comprising a first compartment, a second compartment, and a handle, the first compartment being separate from the second compartment, the first compartment adapted to receive a plurality of beverage containers and the second compartment adapted to receive a coolant, with the beverage containers being directly accessible from the first compartment.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: April 16, 1991
    Assignee: R.V.R. Enterprises, Ltd.
    Inventor: Ronald L. Musielak
  • Patent number: 5007251
    Abstract: Installation for air-conditioning by absorption, having a high-pressure enclosure 1 containing a heater heated to high temperature, in which a refrigerating fluid is driven by vaporation to form a gaseous refrigerant, and a condenser on which the refrigerating fluid is liquified; a low-pressure enclosure 2 containing an evaporator on which the liquified refrigerant is vaporized for producing a desired cold and an absorber on which the gaseous refrigerant is re-absorbed in the depleted solution before being returned to the heater via a pump; the high-pressure enclosure 1 and the low-pressure enclosure 2 each having a generally toric-shaped casing with a common vertical axis, said high-pressure enclosure 1 being located above said low-pressure enclosure 2; a high-pressure and a low-pressure central free space in each enclosure, the high-pressure central free space in the high-pressure enclosure is de-limited by central cylindrical wall 1a, and the low-pressure central free space in the low-pressure enclosure is
    Type: Grant
    Filed: August 2, 1989
    Date of Patent: April 16, 1991
    Assignee: A.R.M.I.N.E.S.
    Inventors: Jean-Luc Thuez, Robert Dehausse
  • Patent number: 5007252
    Abstract: A combination necklace that can be assembled in different configurations from separate necklaces of different or equal lengths. Each of these separate necklaces are comprised of a string of precious or semiprecious stones, with the end stones of each string having connection fittings. Joining stones are provided with built-in connection fittings. E=ither one or two of the joining stones are used to interconnect with the end stones of different combinations of the necklace strings. A gripping piece is provided to bundle together and grip selected portions of the necklaces to achieve different necklace configurations.
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: April 16, 1991
    Assignee: Satoru Yagi
    Inventor: Shigetoshi Mochizuki
  • Patent number: 5007253
    Abstract: A portable clipping and shearing apparatus for clipping and shearing float from lace sheet. The apparatus is mechanically coupled to the lace-knitting machine and is adapted to take up the sheet directly as it emerges from the lace-knitting machine to clip and shear the float forthwith. Consequently, trimmed lace sheet flows out of the portable device of the present invention, avoiding costly multiple handling of the lace sheet. The portable clipping and shearing apparatus is provided with a synchronization mechanism that synchronizes its processing speed to that of the lace-knitting machine. As the portable shearing and clipping apparatus is adapted for the relatively slow lace making machine, the device of the present ivnention is small enough to be easily transported to the location of a warp knitting machine, simple in construction, and more commonly affordable.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: April 16, 1991
    Inventor: Thomas Rahner
  • Patent number: 5007254
    Abstract: A clothes washing machine including a cabinet having therein a spin tub rotatably disposed within a stationary drain tub, and an additive liquid dispensing system comprised of a multi-load reservoir of additive liquid connected hydraulically through a pump to a liquid ejector nozzle. The reservoir comprises a liquid-tight housing which is vertically elongated and has a triangular cross-sectional shape for fitting into an elongated corner portion of the cabinet adjacent a front defining wall thereof. A side of the housing adjacent the front defining wall has a vertically elongated transparent portion disposed coextensively in alignment with a vertically elongated window in the front defining wall of the cabinet. The transparent portion of the housing may comprise a vertically extending tubular member disposed in communication with additive liquid in the housing such that the level of liquid in the tubular member is an indication of the level of liquid in the housing.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: April 16, 1991
    Assignee: Raytheon Company
    Inventors: Robert E. Wolfe, Ronald A. Goyette
  • Patent number: 5007255
    Abstract: The present invention refers to a system wanting to accelerate dyeing time mechanizing the loading and unloading procedure of dyeing machines and consists in folding-up the fabric to be dyed outside the machine using a device capable of folding the fabric in a perforated vat reproducing both the size and shape of the kier of the dyeing machine, that is the part of the machine containing the fabric during dyeing time, and introducing the vat loaded with the fabric into the machine where the dyeing is carried out, the latter being equipped with a water-tight introduction door having previously joined the fabric to be dyed to the pass; in drawing out said vat from the machine after the dyeing procedure substituting it with a second vat containing other fabric to be dyed already folded-up.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: April 16, 1991
    Assignee: Brazzoli S.p.A.
    Inventor: Giampietro Brazzoli
  • Patent number: 5007256
    Abstract: A cartridge-operated entertainment system having a cartridge receiving opening in a front side thereof and a removable deterrent device for preventing unauthorized use of the system. The deterrent device includes a base with a first upstanding leg for removable engagement with an aperture in the underside of the housing and a second upstanding leg positionable in adjacent relation to the cartridge receiving opening for preventing insertion of a cartridge into the opening when said first leg is engaged with the housing. A removable locking head is positionable and lockable on an upstanding end of the second leg for preventing disengagement of the first leg from the housing aperture, and thus removal of the second leg from its obstructing position adjacent the cartridge receiving opening.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: April 16, 1991
    Inventor: Thomas E. Lowe
  • Patent number: 5007257
    Abstract: A safety shield for double-lock handcuffs having a first lock for disengaging or releasing the wristlets after the same have been applied to the wrists of a prisoner, and a second lock for fixing the preset contracted position of the wristlets on the prisoner's wrists. The box-like shield comprises access slots in a wall thereof through which a portion of the associated handcuff key may be inserted to actuate the second lock without opening the shield or revealing the first lock or removing the shield from the handcuffs. This arrangement permits the shield to be secured over the handcuffs prior to application to a prisoner and thereby enhances the officer's safety.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: April 16, 1991
    Inventor: Charles E. Thompson
  • Patent number: 5007258
    Abstract: A lock assembly for preventing unauthorized opening of a utility meter box cover. The assembly includes a lock housing detachably mounted to a box side wall by a fastener which is accessible from the box interior. A post is shiftable in a passageway extending through the lock housing between an operative position overlapping the cover and a retracted position clear of the cover. A barrel lock is removably received in the lock housing to prevent shifting of the post from its operative to its inoperative position.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: April 16, 1991
    Assignee: Olson Manufacturing Co.
    Inventor: John C. Mahaney
  • Patent number: 5007259
    Abstract: An anti-theft device for a motor vehicle with a steering wheel and a driver's seat, comprising a first rod disposed on one side of the rim and a spoke of the steering wheel, a projector bar extending toward the driver's seat, a second rod being disposed on the other side of the rim and the spoke of the steering wheel, a locking spike attached to the second rod, and means for locking the projector bar and the locking spike to the first rod for clamping opposite sides of the steering wheel and preventing a person from sitting on the driver's seat.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: April 16, 1991
    Inventor: David Mellard
  • Patent number: 5007260
    Abstract: A locking system for use with a wheeled vehicle such as a bicycle is described. The system is useful either to lockingly secure a wheel to the fork members of a bicycle or to lockingly secure the seat post to the center frame member. The locking member is cylindrical in shape and covers a specially configured nut that replaces the usual lever operated nut used with a spindled axle system.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: April 16, 1991
    Inventor: Harry Sharp
  • Patent number: 5007261
    Abstract: An electrically actuated rear deck lock mechanism which may be locked or unlocked in a conventional manner. The lock mechanism latches the deck lid with a latch member engaging a lock bar after closure of the deck lid. An electric actuator moves the latch to a locked position. Once in the locked position, the electrical actuator mechanism is free of the mechanical forces applied to the latch member such that any forces experienced during normal operation of the vehicle are absorbed through the mechanical interaction of the latch with the lock bar without undue effect on the electrical actuator. The latch member can also be manually moved to a locked position without interfering with the electrical locking position of the mechanism. A bypass cam and a release member are provided which permit the rear deck locking mechanism to be manually locked and unlocked in the event of a power failure or a failure of the electric actuator.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: April 16, 1991
    Inventor: Norman G. Quantz
  • Patent number: 5007262
    Abstract: A dial lock comprises: a slide bar (10) which is controlled of its movement by engagement with a lock pin (2), dials (3) for controlling movement of the lock pin (2) with respective optional retrieving number, return-to-zero gears (6) to return the dials (3) to these zero-indicating positions at the time of locking and unlocking, and anti-locking means for enabling the locking only after a case when at least one of the dials is set to indicate a number other than zero, whereby optional unlocking number can be set without fail in locking operation.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: April 16, 1991
    Assignee: Clover Co., Ltd.
    Inventor: Hatsuo Nakai
  • Patent number: 5007263
    Abstract: The present invention relates to an improved security device. The improved security device includes a U-shaped member which is designed to engage the shaft of a doorknob. Attached to the U-shaped member is a locking plate which has openings therein to receive either the latch of a deadbolt or the key head of a key inserted into a deadbolt. The improved security device, when in place, prevents entry into a dwelling by a person unlocking a deadbolt by preventing the rotation of a deadbolt latch or a key head inserted into the deadbolt.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: April 16, 1991
    Inventor: Bryan V. Taylor
  • Patent number: 5007264
    Abstract: In a method for the bending of workpieces by swivel bending jaws, the bent-off part is to assume a predetermined bending angle with respect to the workpiece, for this purpose, in a first bending operation, at least one corresponding leg is to be bent off from the workpiece by means of the swivel bending jaws. Then, the swivel bending jaws are released from the leg and a springback of the leg or the actual bending angle is determined by direct measurements and compared with a set bending angle. Subsequently, an agreement is established between set bending angle and actual bending angle by a renewed bending operation, by a bending-over.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: April 16, 1991
    Assignee: Feintool International Holding
    Inventor: Johannes Haack
  • Patent number: 5007265
    Abstract: A monitor is provided for measuring and controlling the strain rate of a blank during forming. A light source directs light against the blank and a video camera is positioned and focused to view the light reflected from the blank while it is being formed. A video monitor and an image processor receive the signal from the camera. This signal is used to determine the strain rate based upon the dimensional change in reference marks on the blank. The image processor provides an output signal which can be used to control the strain rate in accordance with a predetermined strain rate profile for the particular part being formed.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: April 16, 1991
    Assignee: Rockwell International
    Inventors: Murray W. Mahoney, Amit K. Ghosh
  • Patent number: 5007266
    Abstract: A billet is successively cold worked into a product such as a countershaft, an outer race for a constant-velocity joint, or the like by forming a chemically converted lubricating coating on a surface of the billet, forging the billet into an intermediate product at a temperature below a transformation temperature of the billet, covering a surface of said intermediate product with lubricating oil in a die cavity in a die assembly, and forging the intermdiate product at a temperature below the transformation temperature and before the intermediate product gains a predetermined hardness due to age hardening resulting from the first forging step.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: April 16, 1991
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shohachi Nishiuchi, Shigeo Ohta, Hitoshi Imai, Haruo Meguro
  • Patent number: 5007267
    Abstract: A bellows pipe is manufactured from a raw pipe, with an elastic body pinched between a movable core and a fixed core inside the raw pipe, by compressing the elastic body by axially moving the movable core to form an annular convex portion in the raw pipe, changing the annular convex portion to a bellows portion by axially moving a punch to press the annular convex portion, pinching the bellows portion between a chuck and a chuck inner block assembled therein, shifting the pipe a given distance by axially moving the chuck and chuck inner block holding the bellows portion therebetween, and repeating the foregoing steps. Therefore, a small-diameter raw pipe of smaller than 16 mm diameter can be deformed, the outer diameter, pitch, etc. of a bellows portion can be freely set, the elastic body is worn little.
    Type: Grant
    Filed: February 9, 1990
    Date of Patent: April 16, 1991
    Assignee: Usui Kokusai Sangyo Kaisha Limited
    Inventors: Katsushi Washizu, Mitsumasa Ohtaka
  • Patent number: 5007268
    Abstract: An edge-finishing device comprises a drive unit (L), a holder (M) and a notched tip (N). The tip combines a number of geometric features known as land radius (Y), flank faces (K), flank radii (I) and root radius (J). Typical useage of the device requires a tip to be fitted into the holder, the tip being then offered against the workpiece using the flank faces for guidance. The land radius determines the contact area. The tip impacts against the workpiece and bends the protrusions over. The flank radii then beat the protrusions thin enough for them to break off or be driven off. The tip continues to impact until the finished edge conforms to the root radius.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: April 16, 1991
    Assignees: Nigel Brian Kelly, Originations Limited
    Inventor: Nigel B. Kelly
  • Patent number: 5007269
    Abstract: A device for bending metal wire or strips particularly adapted for arts and crafts creations in which a wire receiving gap is formed between a eccentrically driven forming pin and longitudinally and laterally separated guide pins disposed in relationship thereto. The elliptical driving pin movement allows the wire to be both formed and driven, that is, fed, into the device such that the craftsman may be free to manipulate the guide means to vary the gap as the work progresses. The elliptical movement of the driving pin is achieved by means of an actuating arm driven by a cam or equivalent system and including an adjustable pivot point to vary or control the amplitude of the elliptical movement.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: April 16, 1991
    Inventor: Joseph H. Masse
  • Patent number: 5007270
    Abstract: A web handling apparatus for supplying material to a metal forming machine wherein an uncoiler unit is mounted on a frame to draw metal web from a coil. A pivot support is mounted on the frame and supports a dancer arm with a track roller assembly. The dancer arm is pivoted to the roller assembly at one end and is connected to a pivot support at the other end in a manner such that the arm is capable of relative movement axially with respect to the pivot. Movement of the track roller assembly is limited to a vertical path by a pair of vertical tracks on the frame. The pivot support is connected to a rotary transducer for controlling the speed of drive rolls which regulate the delivery of metal web into the metal forming machine.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: April 16, 1991
    Inventor: Bernard J. Wallis
  • Patent number: 5007271
    Abstract: For embossing a metal foil the same is passed between two similarly toothed rollers positioned so that the teeth of each roller engages the teeth of the other. A high-quality embossing is obtained which may be kept practically constant over long periods of operation. The rollers are mutually synchronized such that only one of these rollers need be coupled with a driving mechanism. The other roller is free and may easily be removed, replaced or adjusted in order to vary the force by which it is pressed against the foil and the driven roller respectively.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: April 16, 1991
    Inventor: Karl Boegli
  • Patent number: 5007272
    Abstract: A machine which applies tension to a strip of steel which has been passed through a slitter. The machine includes two sets of rollers which engage the slit material to maintain tension. The rollers are slidable in the machine frame to allow for rapid changing of the rollers to accommodate various types of slit material.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: April 16, 1991
    Assignee: Braner, Inc.
    Inventors: Douglas S. Matsunaga, Jan W. Slabowski, Tadeusz Marecki
  • Patent number: 5007273
    Abstract: In a multi-roll stand having laterally supported working rolls 4, each working roll 4 is supported at at least one side against a radially unmounted lateral intermediate roll 5, which, for its part, is supported against a first, radially mounted supporting roller 6 and a further, radially unmounted intermediate roll 7. The further intermediate roll 7 is supported against a second, radially supported supporting roller 8 and against that intermediate roll 3 of a six-high roll stand which supports the working roll 4 vertically or against the supporting roll of a four-high roll stand. By virtue of this type of lateral support, the risk of slip between the working roll 4 and the lateral intermediate roll 5 supporting it is reduced because a torque is transmitted to the intermediate roll 5 from the intermediate roll 3 or supporting roll of the roll stand via the further lateral intermediate roll 7. In addition, the space for the lateral support can be better utilized for an increase in the supporting forces.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: April 16, 1991
    Assignee: Sundwiger Eisenhutte Maschinenfabrik Grah & Co.
    Inventor: Gerhard Kummerhoff
  • Patent number: 5007274
    Abstract: An apparatus for pre-piercing billets includes a generally cylindrical container for receiving and supporting a generally cylindrical billet, a mandrel bar mounted for axial movement along the axis of the cylinder for penetrating the billet, and a bolster for engaging the billet during penetration of the billet by the mandrel bar, wherein the bolster includes a bolster pin which is axially movable along the axis of the container, the bolster pin having an end which contacts the billet during penetration of the billet by the mandrel bar such that the billet deforms about the end of the bolster pin. A movable support is carried by the mandrel bar toward the billet during advancement of the mandrel bar prior to pre-piercing the billet, the movable support being configured to enter the generally cylindrical container to engage a portion of the container so as to provide additional structural rigidity to the mandrel bar to resist deflection of the mandrel bar during penetration of the billet.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: April 16, 1991
    Inventor: Charles L. Stewart
  • Patent number: 5007275
    Abstract: A progressive die for producing collared holes in a sheet. The die includes a first station having a pattern of three punches producing three spaced apart holes in the sheet. A main punch at the second die station is extended into the three holes producing a single hole with portions of the sheet extending therein. The straightening punch mounted at the third station of the die has a diameter larger than the single main hole and is extended therethrough bending the portions extending into the hole outwardly forming a collar. The curling punch mounted at the fourth station of the die, curls the distal end of the collar outwardly.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: April 16, 1991
    Assignee: Tridan Tool & Machine, Inc.
    Inventor: Harlan F. Voss
  • Patent number: 5007276
    Abstract: An improved seal arrangement is used in a cushion assembly of a press. The seal arrangement includes a high pressure piston seal assembly which is connected with a piston and is disposed in sealing engagement with a cylinder of the cushion assembly. The high pressure piston seal assembly blocks fluid flow between upper and lower variable volume chambers of the cushion assembly. A high pressure cylinder seal assembly is disposed in sealing engagement with a piston rod and the cylinder to block fluid flow from the upper variable volume chamber along the piston rod. An outer low pressure seal assembly is also provided between the piston rod and cylinder to block contaminants from entering the cylinder from the surrounding environment. A low pressure leak down chamber is provided between the high pressure cylinder seal assembly and the low pressure seal assembly.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: April 16, 1991
    Assignee: Teledyne Industries, Inc.
    Inventors: Paul M. Kadis, Susan E. Pfaff
  • Patent number: 5007277
    Abstract: A bristle assembly for measuring steam quality in a well is made by slotting a metal sheet to form parallel bristles extending from a flange at one end of the sheet to the opposite end of the sheet, bending the flange to form a right angle with the bristles, and rolling the flange into a cylindrical shape with the bristles projecting radially outward.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: April 16, 1991
    Assignee: Shell Oil Company
    Inventor: Boyd B. Moore
  • Patent number: 5007278
    Abstract: This invention relates to a die device for the die bending of metal plates (sheet), with two shafts (4, 5), supported rotatable around their lengthwise axis, flattened on one side, and arranged side by side, parallel lengthwise. In particular, in order to be able to produce even bending legs with a length less than the radius of the shaft, in the die device according to the invention, the rotation of the shafts in opposite directions is force-coupled by coupling mechanism (6-10).
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: April 16, 1991
    Inventor: Rolf Haberstock
  • Patent number: 5007279
    Abstract: An apparatus for straightening a cylinder head of an internal combustion engine is provided. The apparatus includes a pair of elongate members on which the cylinder head is mounted. Tensionable members are adjustably anchored in the elongate members and pass through bores in the cylinder head. Tensioning means provided on each tensionable member enable desired forces to be selectively applied to the head to provide corrective deformation of the head. The apparatus is versatile and accommodates cylinder heads of most known makes of internal combustion engines.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: April 16, 1991
    Inventor: Derek L. Miall
  • Patent number: 5007280
    Abstract: A tool head for use in crimping a connector to a conductor, where the connector and conductor extend in a longitudinal direction. The tool head defines a crimping area about which a plurality of crimping nibs are mounted for movement into the crimping area so that the nibs act to indent the connector during a crimping operation of the tool head. Each nib is elongated and includes a connector indenting surface formed by a segment of a cylinder the axis of which extends transverse to the direction of elongation of the nib. In the preferred embodiment, four nibs are provided to define two opposing pairs of nibs. The nibs of one opposing pair are elongated generally transverse to the longitudinal direction of the connector, and the other opposing pair of nibs are elongated generally parallel to the longitudinal direction of the connector. Therefore, the nibs of each pair are elongated generally perpendicular to the nibs of the opposite pair.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: April 16, 1991
    Assignee: Molex Incorporated
    Inventors: Robert L. Quinn, Frank Pansari, Jr.
  • Patent number: 5007281
    Abstract: Plastic working method and apparatus are disclosed. The plastic work such as forging is carried out by partial pressing contact of a die with a partial portion of a workpiece. The die is moved in a swinging or circular rocking fashion. The plastic working apparatus comprises a lower die for supporting the workpiece; an upper die swingably provided in a swinging plane about a predetermined position for relatively depressing the workpiece with respect to the lower die in accordance with the swing motion and for performing the plastic work to the workpiece in cooperation with the lower die; and a moving mechanism for relatively moving the workpiece and the upper die within the swing plane during the working operation.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: April 16, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Syozo Aoshima, Kunio Hirota, Hiroshi Sakakibara, Naoyuki Sawai, Takeaki Sato
  • Patent number: 5007282
    Abstract: A punch assembly of a stamping and forming machine has a separate sub-assembly which is removably secured to the ram of the punch assembly. The sub-assembly comprises a punch holder, a stripper plate, and at least one punch. The stripper plate is coupled to the punch holder by a lost motion connection and the punch holder in turn is secured to the punch ram by fasteners. The fasteners are accessible through access openings which extend into the facial surface of the stripper plate. The practice of the invention permits the use of only one ram with a plurality of sub-assemblies and thereby reduces tooling costs.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: April 16, 1991
    Assignee: AMP Incorporated
    Inventor: Johannes C. W. Bakermans
  • Patent number: 5007283
    Abstract: In connection with a method and a device for processing measured values, where resistance variations are evaluated as a measure for the variation of the gas concentration to be measured, it is proposed to measure a basic resistance value at least once, preferably repeatedly, by admitting a standard calibration gas, and to store this resistance value and derive therefrom, for each subsequent measurement of the gas component the concentration of which is to be measured, by an arithmetic operation, the ratio between the resulting total resistance value and the momentary basic resistance value, and to evaluate the ratio so obtained for further processing.
    Type: Grant
    Filed: May 31, 1989
    Date of Patent: April 16, 1991
    Assignee: Conducta Gesellschaft fur Meb- und Regeltechnik mbH & Co.
    Inventor: Stefan Ambos
  • Patent number: 5007284
    Abstract: A new bench tester for laboratory simulation of piston ring and cylinder wear according to the invention includes tests made using liner segments which bear against a reciprocating piston ring. Temperatures up to 550.degree. C. and loads and speeds representative of the most severe top ring conditions may be imposed. A precision oil spray system delivers the desired quantity and quality of oil to the wear interface. The computer controlled simulator duplicates the desired test cycle, and displays and stores data on friction forces and friction coefficients as the test proceeds. The invention provides a suitable simulator for production and prototype ring and liner combinations, including ceramic coatings for potential use in advanced diesel engines. The importance of the method of oil delivery on test repeatability is emphasized. Some comparisons with Cameron Plint bench tests and firing engine results are presented and good correlations were found with respect to the relative ranking of material pairs.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: April 16, 1991
    Inventor: Ralph J. Slone
  • Patent number: 5007285
    Abstract: A low-cost floating drifter adapted to accurately follow near-surface ocean currents and transmit periodically to monitoring satellites data and position-determining information. Global tracking of ocean currents is made economically and scientifically feasible by the use of large numbers of such drifters. The drifter includes a floating surface buoy in the approximate shape of an oblate spheroid and containing an electronic system, a slotted plane antenna, transmitter, sunrise and sunset detector, environmental sensors, buoy hull strain sensor and battery power supply. The surface buoy is stabilized and induced to follow ocean currents by a drogue suspended from the bottom center surface. The drogue includes a wire-cored buoyant rope of up to hundreds of meters in length and weighted to a slight negative buoyancy. The drogue may also include an elongated cylindrical sock of substantially greater diameter than the rope.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: April 16, 1991
    Assignee: The Charles Stark Draper Laboratory
    Inventors: John M. Dahlen, Narender K. Chhabra, Richard K. Araujo, James R. Scholten, Robert W. Reid, Matti Soikkeli
  • Patent number: 5007286
    Abstract: A dynamic fluid flow sensing system measures relative fluid velocity with respect to a reference member. The system includes a sensor housing supported from the reference member such that the sensor housing is exposed to fluid flowing past the reference member. A solid-state pressure sensing transducer is supported by the sensor housing for generating an electronic output signal in proportion to a sensed dynamic pressure of fluid flowing past the reference member. A central processing unit receives the electronic output signal from the transducer and generates a processed electronic output signal in accordance with a stored control program. A display receives the processed electronic output signal and displays a visual readout of desired fluid flow characteristics based on the processed electronic output signal.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: April 16, 1991
    Inventors: Robert G. Malcolm, Thomas W. Richardson
  • Patent number: 5007287
    Abstract: A filler cap of a jar for a washer is provided with a stopper portion plugging filler hole of the jar, a pawl portion engaged with the filler hole and a tubular gauge for measuring residual quantity of detergent liquid in the jar which extends toward the bottom of the jar. The tubular guage communicates with an air hole in the cap opening on a finger gripped face of a knob provided on the stopper portion. In using this filler cap, it is possible to measure the residual quantity of the detergent liquid with ease and accuracy since gripping the knob to remove the stopper portion of the cap will also cover the air hole so as to retain a quantity of liquid in the guage indicative of the amount of fluid left in the jar.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: April 16, 1991
    Assignee: Jidosha Denki Kogyo K.K.
    Inventor: Kazuhiko Nagai
  • Patent number: 5007288
    Abstract: A heat radiating type liquid level sensor comprises a liquid level measuring resistor having a first temperature coefficient and an inverting amplifier gain of which is dependent on the change in resistance of an input resistor thereof. The input resistor has a second temperature coefficient. The liquid level measuring resistor and the input resistor are placed side by side so that the input resistor can experience the same ambient temperature as the liquid level measuring resistor.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: April 16, 1991
    Assignee: Yazaki Corporation
    Inventors: Kazuyuki Sasaki, Ichiro Kataoka
  • Patent number: 5007289
    Abstract: An inertial measurement unit capable of providing information relating to all six degrees of freedom in an orthogonal three axis system is shown having a mechanical oscillator constructed from two counterbalanced platforms which form a single unit for low inertic rotation about a single torsional axis. Each platform has a Y-shaped rotor member whose legs are positioned between inwardly extending, mounting web members. Driving web members are provided on each side of the mounting web members for rotating the rotor member. A plurality of accelerometers are mounted upon at least one of the counterbalanced platforms. Each accelerometer has an input axis, an output axis, and pendulous axis. Each accelerometer is mounted such that the input axis is at a predetermined angle to the single axis of rotation and the counterbalanced platform. The accelerometers are used to measure angular rate along the pendulous axis and linear acceleration along the input axis.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: April 16, 1991
    Assignee: Litton Systems, Inc.
    Inventors: Robert E. Stewart, Samuel N. Fersht
  • Patent number: 5007290
    Abstract: What is disclosed is an improved quartz flexure accelerometer including the well-known elements of a quartz reed positioned between a return path and an end cap, the return path and end cap impelling a compressive load on the reed frame as a result of an adhesive and a preload band. The improvement disclosed includes a recess at the outer periphery of the end cap, the recess defining a compliant member at the bottom of the end cap. The compliant member providing greater strain movement, enabling accurate preload setting between the compliant member of the end cap, the adhesive, the preload band, and the return path. The compliant member also providing spring action to maintain a prolonged constant compressive load on the quartz reed.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: April 16, 1991
    Assignee: New SD, Inc
    Inventors: Bert Egley, Richard A. Hanson
  • Patent number: 5007291
    Abstract: Pipe inspection apparatus comprising transducers for transmitting pulsed beams of ultrasonic energy longitudinally, transversely and obliquely into the wall of the pipe for detection of flaws. The apparatus includes a motor driven chuck 18 for rotating the transducers about the a pipe P and motor driven roller 12 for axial movement of the pipe whereby the transducers move in a helical scanning path. A control system 60 maintains the axes of the pipe and circle array of transducers in coincidence and with hydraulic controls 80 maintains each transducer at fixed distance to the pipe for sonically coupling thereto by a flowing liquid whereby a shear wave is generated by each beam in the tubular wall. The transducers comprise multiple pairs, the members of which are diametrically opposed and transmit in opposite directions, for transmitting longitudinally at angles of 12.degree., 27.degree. and 42.degree.
    Type: Grant
    Filed: October 5, 1989
    Date of Patent: April 16, 1991
    Assignee: Scan Systems, Inc.
    Inventors: William T. Walters, Carroll R. Thompson
  • Patent number: 5007292
    Abstract: The multicomponent transducer of the present invention comprises a housing interior surfaces forming an enclosed cavity and a single inertial mass immersed in a magnetic fluid contained therein. The inertial mass is levitated in the magnetic fluid by means of ferrohydrodynamic forces. The housing cavity and the inertial mass are generally spherical in shape such that the inertial mass is substantially unconstrained with respect to the directions of motion to which it is responsive. The multicomponent transducer also includes a motion sensing system for sensing selected components of motion of the inertial mass and for generating signals representative of the magnitude and periodicity of the relative motion of the inertial mass with respect to the housing along one or more separate axes. The multicomponent transducer of the present invention has amplitude and phase responses similar to those of conventional transducers.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: April 16, 1991
    Assignee: Amoco Corporation
    Inventors: Christopher Crowe, Ralph L. Cordell, Seun K. Kahng
  • Patent number: 5007293
    Abstract: A device for metering a liquid and a vapor flowing through a conduit generates a spin to the two-phase flow, by which the centrifugal force separates the liquid phase from the vapor phase. Next, the liquid-vapor rate and the isolated annular vapor rate are measured. These measurements can then be mathematically solved for the individual flowing components. The vapor and liquid re-mix downstream of the apparatus.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: April 16, 1991
    Inventor: Douglas B. Jung
  • Patent number: 5007294
    Abstract: A method and device for measuring the string tension of a strung racket such as a tennis racket wherein a mechanical/electrical transmitter is attached to the membrane made from the racket strings mounted crosswise onto a frame and measures the frequency of the membrane. The membrane is induced to freely oscillate in an aperiodically (non-periodically) manner by a light stroke onto the frame or by dropping a ball onto the membrane. The measured frequency is proportional to the string tension which is indicated by a display.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: April 16, 1991
    Assignee: Karl-Eberhard Mauve
    Inventor: Klaus Matjasic
  • Patent number: 5007295
    Abstract: A magnetoelastic force transducer according to the invention comprises two closed magnetic circuits. The transducer is constructed in such a way that the reluctance in one of the magnetic circuits will be changed when the transducer is subjected to a force as a result of changes in the magnetic permeability caused by magnetostriction. The second magnetic circuit is formed so as to have an essentially unchanged reluctance when the transducer is loaded and is used to compensate for those changes in the permeability of the material arising for reasons other than magnetostriction.
    Type: Grant
    Filed: January 3, 1990
    Date of Patent: April 16, 1991
    Assignee: Asea Brown Boveri AB
    Inventors: Par Gustafsson, Jarl Sobel, Lars Ornholmer
  • Patent number: 5007296
    Abstract: A particle detector for detecting particles of blood components in an electrolyte employs a minute hole through which a fixed quantity of the material is drawn. Electrodes inside and outside the detector pass an electric current through the minute hole. When a particle passes through the hole, it partially blocks the hole, whereby a sharp change is experienced in the amount of current passing through the electrolyte. A syringe fluid path in the detector enters the fluid path for the test fluid at right angles thereto. The inside electrode is disposed in the syringe fluid path near its junction with the fluid path for the test fluid. A colorimeter is placed in series with the flow of the test fluid to measure the concentration of hemoglobin in the test fluid. Automated control of the particle detector is provided by a plurality of cams driving a corresponding plurality of pistons.
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: April 16, 1991
    Assignee: 501 Toa Medical Electronics Co., Ltd.
    Inventor: Takahito Hukuhara
  • Patent number: 5007297
    Abstract: In a particle size measuring system with automatic dilution of the sample containing particles to be measured, the sample is diluted with ionized water in a mixing chamber while continuously withdrawing the mixture of the diluent and the sample in a stream from the mixing chamber. The size of the particles in the stream drawn from the mixing chamber are measured. To insure that the particle size distribution in the stream drawn to the mixing chamber is the same as that in the original sample, a stirrer is provided in the mixing chamber which repeatedly is reversed in its direction of rotation with the time intervals between successive reversals being randomly varied. A cleaning system is provided to clean the mixing chamber as well as the measuring cell in which particle sizes are measured.
    Type: Grant
    Filed: December 6, 1988
    Date of Patent: April 16, 1991
    Assignee: Pacific Scientific Company
    Inventor: Holger T. Sommer
  • Patent number: 5007298
    Abstract: An input shaft of a toroidal-type infinitely variable transmission is supported at opposite ends by respective bearings which are secured to a housing, and input and output disks and power rollers are mounted at an intermediate portion of the input shaft. The input shaft has a flange at one end which is connected to an engine, and a pressure adjusting Belleville washer is interposed between the inner end face of the flange and the outer end face of the bearing to bias the input shaft in the direction of the engine so that a predetermined pressing force is applied to the input and output disks and the power rollers during a period in which a small input torque is transmitted to the input shaft. As the input torque increases, the input shaft is moved axially together with a loading cam against the spring force of the Belleville washer, and the inner end face of the flange and the outer end face of the bearing directly abut each other so that a required reaction force is obtained.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: April 16, 1991
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventor: Hisashi Machida