Patents Issued in July 28, 1981
  • Patent number: 4280295
    Abstract: An apparatus for providing movement to a fishing line comprising a plate attached to a shaft for rotational movement. An arm pivotally attached to the plate for pivotal movement about the axis of the shaft. Pin apparatus on the plate for restricting the pivotal movement of the arm relative to the plate. A pivotally mounted clip on the arm having spring biased jaws for holding a fishing line. As the plate is rotated the fishing line receives a slow upward movement followed by a fast sinking movement.
    Type: Grant
    Filed: January 25, 1980
    Date of Patent: July 28, 1981
    Inventors: Philip Hoeving, Michael Litovich
  • Patent number: 4280296
    Abstract: A tandem fishhook comprising a forward hook and a rearward hook, the hooks each having two opposite sides connected by a curved portion, one of the sides having a barbed end, the other of the sides of each of the hooks defining an elongated shank extending in a direction opposite to the convex side of the curved portion, the shanks being alongside each other, means rigidly interconnecting the shanks.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: July 28, 1981
    Inventor: Donald C. Volenec
  • Patent number: 4280297
    Abstract: A doll having a hollow body and a head is provided with a cap supported for movement on top of the head. A liquid reservoir is provided within the hollow body having a flexible wall to provide for pumping action and a conduit extends between the reservoir and an outlet adjacent the cap for directing a stream of liquid against the cap to move the cap on the doll's head when the flexible wall is depressed inwardly.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: July 28, 1981
    Assignee: Marvin Glass & Associates
    Inventors: Allison W. Katzman, Harry Disko, Eugene Jaworski
  • Patent number: 4280298
    Abstract: A model airplane comprising an elongated body rectangular in cross-section having a propeller coupled to one end which is rotatable by an elastic band. Two thin elongated fins are adapted to be removably attached to the body at positions such that they form a cross with their thin planes being 90 degrees apart and their lengths being generally perpendicular to the length of the body with one fin being located its full width closer to said one end of the body than the other fin.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: July 28, 1981
    Inventor: Walter P. B. Kulzer
  • Patent number: 4280299
    Abstract: A whistle including a mouthpiece adapted to be fit on a body. The body has three cavities different in depth. A protuberance provided in the chamber at the bottom of the mouthpiece is adapted to cover one of the cavities. Different pitches of the sound can be produced according to which cavity is covered.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: July 28, 1981
    Assignee: Zenzaburo Kawanishi
    Inventor: Toshio Oka
  • Patent number: 4280300
    Abstract: A toy vehicle includes a body mounted on a plurality of ground engaging wheels to allow travel across a suitable surface. A speed indicating device is defined on the body and connected to the wheels as is a distance traveled indicating device. A sound producing assembly is mounted within the body in contact with the distance indicating device to produce sounds corresponding to the travel of the vehicle across the surface. The toy vehicle also includes a manually actuated device for indicating the direction in which the vehicle is to be turned similar to a turn signal on an automobile.
    Type: Grant
    Filed: February 8, 1980
    Date of Patent: July 28, 1981
    Assignee: Marvin Glass & Associates
    Inventors: Ralph J. Kulesza, Harry Disko, James G. Thibault
  • Patent number: 4280301
    Abstract: A material handling system is provided having particular application in grey iron foundries. In general, the system provides a continuous flow of work from the time castings are removed from their molds until the castings are ready for shipping. In particular, the system includes an environmentally acceptable grinding room work station in the form of a totally enclosed work area. Means for feeding material into and from the work station include a first plurality of gravity feed input chutes operatively coupled to a conveyor system on the input side of the work station, and a second plurality of gravity feed output chutes leading to another area on the output side of the work station. The conveyor system is designed to carry the castings from shake-out to the enclosed work area. Scrap is separated from the molded parts prior to their entrance into the work area and rejected parts continue along past the gravity feed input chutes to an accumulation storage device.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: July 28, 1981
    Assignee: St. Louis Conveyor Company, Inc.
    Inventors: Donald E. Herzog, Larry Thomas
  • Patent number: 4280302
    Abstract: A grinding method characterized in that a rotatably arranged grinding tank and downward projecting spindles rotatable in any direction on a stationary or rotatable main shaft stand positioned above the grinding tank and fitted to a fitting column body are provided, the grinding tank is charged with such grinding materials as hone grains and is stopped or rotated at a low or high speed depending on the work product. The work product to be ground is fitted to the spindle on the main shaft stand, is put into the grinding materials within the tank and is rotated reversely to or in the same direction as of the rotation of the grinding tank or is stopped and the work or the grinding tank is moved up and down and forward and rearward so that the work may be ground in a low pressure fluid state or high pressure fluid state. The tank is sealed to permit high grinding pressures when the tank and work products are rotated at high speeds.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: July 28, 1981
    Inventor: Ietatsu Ohno
  • Patent number: 4280303
    Abstract: A plastic pellet cleaning apparatus and method for producing plastic pellets for optical lense molding is provided. The plastic is melted and molded utilizing an injection molding process to produce optical lenses which will be used for a variety of applications. The apparatus and method disclosed will produce plastic pellets substantially clean of contaminants which would otherwise cause microscopic defects in the optical lenses produced therefrom. Generally, optical lenses produced which have these defects are rejected.
    Type: Grant
    Filed: May 1, 1980
    Date of Patent: July 28, 1981
    Inventor: Hermann Weber
  • Patent number: 4280304
    Abstract: A deburring method for finishing workpieces by machines using rotary tools and a gyro-finishing machine successively includes conveying the workpieces by an intermittently-driven charging conveyor with a given pitch, transferring the workpieces from the conveyor to each machine or holding the workpieces at stations of rotary tools. Such steps and processes are performed in parallel with each other and successively with all workpieces.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: July 28, 1981
    Assignee: Kabushiki Kaisha Shikishima Tipton
    Inventor: Hisamine Kobayashi
  • Patent number: 4280305
    Abstract: A roof flashing structure for use in sealing the tubes and wires leading to and from a solar collector where said tubes and wires pass through the roof has a generally flat plate with an upstanding housing integrally formed with the plate, both of a rigid material. The flat plate has an opening in it where the housing meets with the plate and the upper end of the housing has an opening wherein a resilient elastomeric sealing member is located. The elastomeric sealing member has an upper surface and a lower surface and includes a plurality of generally circular apertures extending upwardly from the lower surface. Formed with the upper surface over the top of each of the apertures is an upstanding boss which seals the apertures. Within the interior of each of the apertures are a plurality of sealing flanges located one above the other along the length of the aperture between the lower surface and the sealed end.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: July 28, 1981
    Assignee: The Logsdon Foundation
    Inventor: Duane D. Logsdon
  • Patent number: 4280306
    Abstract: A convertible tennis-court enclosure, comprising a plurality of parallel supporting beams and two closure elements between two of the supporting beams to be extended simultaneously along the supporting beams, each element including a series of purlins arranged to slide on the supporting beams and connected in two's by a portion of a canvas fixed to the purlins, of which the length is equal to half that of the beams.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: July 28, 1981
    Inventor: Vojin Milinic
  • Patent number: 4280307
    Abstract: An improved construction system disclosed herein comprises a plurality of pre-engineered panalized or sectionalized building elements and units designed and prefabricated to include all of the basic services such as wiring, plumbing, ductwork, and the like, and materials in the form of framing structures with finished walls, flooring and ceilings adopted for ease of transport, assembly, disassembly and reassembly in accordance with flexible erection and construction processes. Each prefabricated panel or unit includes as an integral part of its structure a mechanical interconnection and interlocking means for fixedly joining each with one or more other panels along one or more preselected edge regions thereof. The interconnecting and interlocking mechanisms include a combination of architecturally sound arrangements of one or more connector plates, supporting and positioning blocks, girders or bearing plates and the like.
    Type: Grant
    Filed: March 14, 1979
    Date of Patent: July 28, 1981
    Inventor: Alphonso Griffin
  • Patent number: 4280308
    Abstract: A lintel for supporting arches over doors, windows and other openings in a wall. The lintel is made of relatively thin sheet metal and has at least one load-carrying shank (5;12,13;19,20), so that the lintel in spite of its thin construction can carry great loads during the walling of the arch. The shank or each shank is provided with a longitudinally extending material weakening (6), e.g. a series of slots, perforations, a groove or similar. Said material weakening forms a fracture indication along which the shank can be folded or broken off, when the motar has set and brickwork has become self-supporting.
    Type: Grant
    Filed: September 6, 1979
    Date of Patent: July 28, 1981
    Inventor: Lennart Svensson
  • Patent number: 4280309
    Abstract: A window frame assembly for use in a window opening which extends from one side of a body such as a door, a wall or the like to the other side thereof comprising a preassembled first frame which includes a header member, side rail members and a sill member arranged and proportioned to fit within said window opening, each of said members comprising a transverse wall adapted to extend between the sides of said body, said transverse wall having first and second longitudinally extending sides, a first flange projecting outwardly from said transverse wall at said first side thereof for engagement with said one side of said body to prevent direct removal of said first frame from said opening through said other side, means located inwardly of said transverse wall for mounting at least one window unit within said first frame, and first locking means extending longitudinally of said frame member, said first locking means being engageable from said other side of said body in use, and a locking rail for each of said mem
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: July 28, 1981
    Inventor: Alfred G. Huelsekopf
  • Patent number: 4280310
    Abstract: The specification discloses a welded wire reinforcement for box culverts which four welded wire panels are hingedly joined by helical hinges so that the assembly can be shipped flat, erected on the job and held in erected position by crimping the helical hinges at various points.
    Type: Grant
    Filed: May 23, 1979
    Date of Patent: July 28, 1981
    Inventor: Wilbur E. Tolliver
  • Patent number: 4280311
    Abstract: A method of fastening a sheet of material to a support by first positioning the sheet material adjacent the support, cutting an elongated slot in the sheet material while embedding a portion of the sheet material in the support, securing a fastener to the support by moving a first fastener portion into frictional engagement with the support, positioning a second portion of the fastener to extend through the slot and providing a fastening portion to the fastener is disclosed. The slot is larger than the portion of the fastening means positioned therein so as to permit relative movement between the sheet material and the fastening means. This capability for relative movement between the sheet material and the support accommodates for thermal expansion and contraction of the sheet material thereby preventing binding and buckling of sheet material while retaining its alignment on the support.
    Type: Grant
    Filed: November 8, 1978
    Date of Patent: July 28, 1981
    Assignee: Johns-Manville Corporation
    Inventor: Donald F. Lockard
  • Patent number: 4280312
    Abstract: An insulation installing implement is manually operable by means of an elongated handle, and is positionable between wall studs or ceiling joists to hold, feed and anchor opposite selvage edges of an insulation blanket against a pair of spaced apart studs or ceiling joists by remote manual control operation of a pair of anchoring devices carried by the frame of the implement.
    Type: Grant
    Filed: February 7, 1980
    Date of Patent: July 28, 1981
    Inventor: Charles Otts
  • Patent number: 4280313
    Abstract: In plastic pouch forming, improved vacuum boxes that are movable toward and away from one another are provided. Each vacuum box comprises a series of superimposed, paired, mutually spaced vacuum ports in fluid communication with one another, the outer pair of ports being resilient and adapted to frictionally engage a wall portion of a flattened pouch and to flex open upon application of a vacuum to draw portions of the pouch wall into a cavity defined by an underlying port.
    Type: Grant
    Filed: October 3, 1979
    Date of Patent: July 28, 1981
    Assignee: American Can Company
    Inventors: Walter I. Akkala, Thomas M. Gorshe
  • Patent number: 4280314
    Abstract: A device for packaging elongated articles, such as plants and cut flowers, in a protective bag. The device includes a tubular frame having a generally horizontal section and a vertical section which is connected to one end of the horizontal section. A support is carried by the upper end of the vertical section and is adapted to support a plant to be packaged. One or more elongated open ended bags are initially positioned around the horizontal section of the frame, and the bag is then drawn upwardly around the plant that is supported on the support to package the plant.
    Type: Grant
    Filed: September 7, 1979
    Date of Patent: July 28, 1981
    Assignee: Modern Mfg. Co., Inc.
    Inventor: Matthew A. Stuck
  • Patent number: 4280315
    Abstract: Disclosed is an improved apparatus for facilitating the filling of flexible containers.The apparatus consists of a substantially rigid, frustoconical tubular structure, somewhat smaller, in transverse dimension, than the transverse dimension of the flexible container to be filled. Means are provided for holding the apparatus when material is loaded through it into the container, and longitudinal grooves are provided in the outer surface of the apparatus to permit the release of air from the container as it is being filled.
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: July 28, 1981
    Inventor: D. Lewis Von Hapsburg
  • Patent number: 4280316
    Abstract: A sugar cube holding device formed with a riding horse bridle bit having a rigid mouthpiece provided with an inverted U-shaped curb and having a roller loosely journalled for rotation in opposing directions about the axis of the mouthpiece at the depending limit of the curb. A downwardly open hood is placed over the inverted U-shape curb and is rigidly secured thereto to form a downwardly open chamber within the confines of the curb. An opening is formed in the rearwardly disposed wall of the hood for admitting a cube of sugar.
    Type: Grant
    Filed: December 17, 1979
    Date of Patent: July 28, 1981
    Inventor: John D. Taylor
  • Patent number: 4280317
    Abstract: Coupling operations between a motorized vehicle and an attachment may be complicated when, due to uneven terrain, it becomes difficult to properly align a coupling component of the vehicle with a mating coupling component of the attachment. An adjustable coupling apparatus is provided which includes a coupling arm pivotally mounted on a support. An end of the arm includes a receptacle and an associated latch. The coupling arm is pivotable for varying the position of the receptacle.
    Type: Grant
    Filed: April 16, 1980
    Date of Patent: July 28, 1981
    Assignee: Sperry Corporation
    Inventors: Curtis H. Lindblom, Joe E. Shriver
  • Patent number: 4280318
    Abstract: An infinite adjustment mechanism for a harvesting machine on which a hydraulic cylinder is utilized to raise and lower the reel relative to the ground is disclosed wherein the hydraulic cylinder is connected to a link pivotally mounted on the frame of the crop harvesting header and is adjustably positionable by a draw bolt. This hydraulic cylinder mounting linkage allows the minimum reel height, relative to the cutterbar, to be easily adjusted with simple, ordinary tools in an infinite number of positions within the limits imposed by the lengths of the draw bolt and the pivoting link. A clamping mechanism is provided to lock the pivoted link into a preselected position relative to the frame of the crop harvesting header.
    Type: Grant
    Filed: April 2, 1980
    Date of Patent: July 28, 1981
    Assignee: Sperry Corporation
    Inventor: Earl E. Koch
  • Patent number: 4280319
    Abstract: A deck construction for a rotary mower which includes a shallow cylindrical blade housing with horizontal aprons extending fore and aft therefrom. Integral wheel supporting plates extend vertically along the respective lateral edges of the aprons and at right angles thereto. Each wheel supporting plate has a cantilevered tip portion which extends to the sidewall of the blade housing and which is welded to the sidewall at a region which is spaced substantially upwardly from the lower edge of the housing. The tip portion of each blade supporting plate is of flaring shape defining a generally triangular relief space thereunder and so that the plate forms a downwardly angled brace between housing and apron. The wheel supporting plates and apron are mutually reinforced by a narrow flange extending continuously around the edges thereof between the welded tip portions.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: July 28, 1981
    Assignee: Roper Corporation
    Inventor: Joseph E. Scanland
  • Patent number: 4280320
    Abstract: In a crop roll forming machine having a mobile frame, a pickup, a crop material conveying apparatus, a bale forming apparatus, and a bale forming region defined generally by the bale forming apparatus and the frame there is provided an improved tensioning apparatus for the bale forming apparatus comprising at least a first and a second spring extensibly affixed to mounting structure at a first end and connected to the bale forming apparatus at a second end. The springs further have an easily adjustable tension adjustment so that a resistive force to the extension of the springs is generated in direct relationship to the adjustments made to the tension adjustment; the resistive force being transmitted to the bale forming apparatus at the second end thereby providing an adjustably increasing tension to the bale forming apparatus and correspondingly adjustably increasing the force exerted upon crop material being formed into a bale in the bale forming region.
    Type: Grant
    Filed: August 25, 1978
    Date of Patent: July 28, 1981
    Assignee: Sperry Corporation
    Inventor: Edward T. Eggers
  • Patent number: 4280321
    Abstract: A device is disclosed, as an attachment to a spinning, or a doubling frame, for stopping the rotation of the spindle and the sliver feed whenever a sliver or a thread breaks and for giving, at the same time, a warning signal (e.g. a luminous signal) to a watching operator. The device comprises a thread feeling whisker connected to a circuit which controls electromagnetic clutches connected to the spindle, and the spindle braking and stopping mechanism is connected by a flexible cable to a sliver-pinching press so that as soon as the spindle is being braked and stopped the sliver is pinched and sliver feed is discontinued. The electric circuit also comprises an indicator lamp.
    Type: Grant
    Filed: April 12, 1979
    Date of Patent: July 28, 1981
    Assignee: F.lli Marzoli & C. S.p.A.
    Inventor: Angelo Marzoli
  • Patent number: 4280322
    Abstract: A textile yarn processing machine, such as a two-for-one twister or the like, having respective yarn processing stations is provided with an improved yarn monitoring system for stopping the operation of the yarn processing station in response to the absence of a yarn running therethrough, as for example, upon the occurrence of a yarn breakage. The improved yarn monitoring system of the present invention is constructed generally as follows: A yarn sensor is constructed and mounted so as to be held in an operative setting by yarn tension when the yarn is running in normal operating condition and to be released in the event of the release of such tension, as upon a yarn breakage. A switching mechanism is provided for stopping the operation of the yarn processing station, and means is provided for operably connecting the yarn sensor to the switching mechanism for actuating the switching mechanism upon the release of the yarn sensor from its operative setting.
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: July 28, 1981
    Assignee: Palitex Project Company GmbH
    Inventor: Siegfried Inger
  • Patent number: 4280323
    Abstract: An arrangement is provided for resetting the fuel inlet pressure to the throttle valve in response to sensed changes in nozzle fuel pressure to compensate for variations in the fuel viscosity resulting from changes in fuel temperature. The fuel nozzle pressure is automatically maintained at a fixed value during the ignition sequence to assure reliable ignition without overfueling throughout the range of site ambient temperature variation.
    Type: Grant
    Filed: May 25, 1978
    Date of Patent: July 28, 1981
    Assignee: Westinghouse Electric Corp.
    Inventors: Chester A. Jersey, Roy W. Kiscaden
  • Patent number: 4280324
    Abstract: The invention concerns a fuel distribution device in a high velocity gase flow. The device consists of two coaxial, toric injection manifolds placed in close proximity with respect to each other, pierced by small diameter uniformly distributed orifices and arranged to introduce fuel into the flow. The orifices in the manifold located downstream with respect to the direction of the flow of gases, are arranged on the face turned upstream of the manifold, in a circular row coaxial with it.It is the object of the invention to reduce the drag induced in the flow by the devices presently in use, while improving the distribution of the fuel; it finds particularly advantageous applications in the afterburner ducts of gas turbine engines.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: July 28, 1981
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation
    Inventors: Jean-Claude M. Arliguie, Marc F. B. Buisson, Jacques E. J. Caruel
  • Patent number: 4280325
    Abstract: Thermal energy is converted into rotational energy by using the expansion of a fluid medium to propel a plurality of pistons within at least one continuous, closed-loop passageway mounted on a rotatable platform. In at least one region of the passageway, the pistons must move inwardly against centrifugal force as the platform rotates. In at least one other region of the passageway, the pistons are moved outwardly under the influence of centrifugal force. Means are provided for imparting force to successive ones of the pistons to propel them against centrifugal force in said one region; while means are provided for converting the energy of pistons moving outwardly under the influence of centrifugal force in said other region into rotational energy. This rotational energy is used to drive gears mounted on the platform which mesh with a stationary gear carried beneath the platform to cause rotation of the platform about its rotational axis.
    Type: Grant
    Filed: July 24, 1980
    Date of Patent: July 28, 1981
    Assignee: Battelle Development Corporation
    Inventors: Sherwood L. Fawcett, James N. Anno
  • Patent number: 4280326
    Abstract: An apparatus for use in the generation of impulses, comprising a stepped piston assembly having a large piston and a small piston mechanically linked to one another and reciprocable between forward and rearward positions with the large piston being located in a large cylinder and having a large rearward face in communication with a reservoir for compressed fluid, and with the small piston having a small forward face for delivering the impulse; wherein the stepped piston assembly has an auxiliary piston located between the large piston and the small piston which auxiliary piston is mechanically linked to the large piston and which is reciprocable in an auxiliary cylinder, and wherein there is provided a valve through which fluid can flow from the volume enclosed by the large cylinder forward of the large piston into the volume enclosed by the auxiliary cylinder rearward of the auxiliary piston.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: July 28, 1981
    Assignee: Health and Safety Executive
    Inventor: Keith Moodie
  • Patent number: 4280327
    Abstract: A turbine system including a turbine rotatably driven by solar-heated air for driving a load such as an electrical power generator or the like.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: July 28, 1981
    Assignee: The Garrett Corporation
    Inventor: Robin Mackay
  • Patent number: 4280328
    Abstract: Solar energy is utilized to convert water into steam for use in driving a turbine which, in turn, is used to generate electricity. At the same time air in a solar panel is utilized to drive another turbine which in turn generates electricity. The water recovered by condensation of the steam is permitted to drop from the elevation at which it is accumulated and that water is used to drive another turbine which in turn generates further electricity.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: July 28, 1981
    Inventor: Claude J. Falconer
  • Patent number: 4280329
    Abstract: A radiant surface combustor comprising a porous combustor element in close heat transfer relation with a heat transfer surface for absorbing radiant heat energy from the combustor element.
    Type: Grant
    Filed: June 16, 1978
    Date of Patent: July 28, 1981
    Assignee: The Garrett Corporation
    Inventors: Ray A. Rackley, David V. Carpenter
  • Patent number: 4280330
    Abstract: An air conditioning system primarily intended to be installed in an automative vehicle for selectively heating or cooling the passenger compartment for comfort as might be desired by the occupants.The system is completely battery operated and may be programmed to cool or heat the compartment without the engine of the vehicle operating. In addition since the system contains its own battery electrical emergency power may be transferred to the vehicle starting system should condition necessitate such.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: July 28, 1981
    Assignee: Verdell Harris
    Inventors: Verdell Harris, Richard L. Miller
  • Patent number: 4280331
    Abstract: This application discloses a single effect and double effect absorption refrigerating system, in which water is used as a refrigerant and LiBr as an absorbent, for example. A refrigerating cycle is formed by connecting in an air-tight manner a high temperature generator to be heated by a high temperature heat source, a first low temperature generator to be heated by refrigerant vapor separated from a dilute solution in said high temperature generator, a condenser, an evaporator, an absorber, a first heat exchanger and a second heat exchanger by means of refrigerant lines, dilute solution lines and dense solution lines. A second low temperature generator to be heated by a low temperature heat source is disposed between one of the dilute solution lines and one of the dense solution lines so as to communicate with said condenser, whereby the supply of a solution and a fuel to said high temperature generator may be controlled dependent on the heating capacity of said second low temperature generator.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: July 28, 1981
    Assignees: Sanyo Electric Co., Ltd., Tokyo Sanyo Electric Co., Ltd.
    Inventors: Kazuhiro Yoshii, Norikazu Kubota
  • Patent number: 4280332
    Abstract: A defrosting control for a heat pump system utilizes a first temperature sensor mounted to the outdoor coil fan motor windings, a second sensor mounted to sense the outdoor ambient air temperature and a third sensor to sense the refrigerant temperature in the outdoor coil. The control circuitry determines the temperature difference of the first two sensors, representing the fan motor temperature rise, which increases dramatically when the outdoor coil is frosted; if the difference exceeds a selected abnormal temperature rise and the temperature sensed by the third sensor indicates frosting is likely to have occurred, the defrost cycle is initiated. The cycle is terminated when the temperature sensed by the third sensor indicates that all frost is likely to have melted.
    Type: Grant
    Filed: July 30, 1979
    Date of Patent: July 28, 1981
    Assignee: Intertherm Inc.
    Inventors: Asadulla R. Khan, Otto H. Boning
  • Patent number: 4280333
    Abstract: Passive environmental heating and cooling systems are described, which utilize heat pipes to transmit heat to or from a thermal reservoir. In a solar heating system, a heat pipe is utilized to carry heat from a solar heat absorber plate that receives sunlight, through a thermal insulation barrier, to a heat storage wall, with the outer end of the pipe which is in contact with the solar absorber being lower than the inner end. The inclining of the heat pipe assures that the portion of working fluid, such as Freon, which is in a liquid phase will fall by gravity to the outer end of the pipe, thereby assuring diode action that prevents the reverse transfer of heat from the reservoir to the outside on cool nights. In a cooling system, the outer end of the pipe which connects to a heat dissipator, is higher than the inner end that is coupled to a cold reservoir, to allow heat transfer only out of the reservoir to the heat dissipator, and not in the reverse direction.
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: July 28, 1981
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John M. Corliss, George H. Stickford
  • Patent number: 4280334
    Abstract: A water condensate recovery device for use in a refrigeration system. The device comprises a condensate compartment for receiving condensate water therein. A heat transfer conduit is provided in the condensate compartment through which refrigerant fluid from a compressor flows for cooling therein by the condensate water. Aperture means is provided with the condensate compartment to permit escape of vapor caused by evaporation of condensate water therein during heat transfer between the refrigerant fluid in the heat transfer conduit and the condensate water. The condensate compartment permits disposal of the condensate water by evaporation and simultaneously reduces the discharge pressure of the compressor by cooling the refrigerant fluid from the compressor.
    Type: Grant
    Filed: June 26, 1979
    Date of Patent: July 28, 1981
    Inventor: Ness R. Lakdawala
  • Patent number: 4280335
    Abstract: An icebank system is provided for refrigerating produce areas and providing air conditioning in supermarkets. The system is adapted to handle all refrigerating and cooling requirements of supermarkets including produce cases, beverage coolers, food preparation areas, and air conditioning. The icebank system allows a supply of ice to be built up in an icebank storage tank in off-peak hours when the cost of electrical power is lowest. Cold water is circulated from the icebank storage tank to the various produce areas where cooling is required. Each produce area is provided with a heat exchanger which receives cold water from the icebank storage tank to maintain a low refrigeration temperature in the produce area. Each produce area is tapped into a main water conduit extending from the icebank storage tank. The spent water from each produce area is returned to the icebank storage tank via a return conduit.
    Type: Grant
    Filed: June 12, 1979
    Date of Patent: July 28, 1981
    Assignee: Tyler Refrigeration Corporation
    Inventors: Arthur Perez, Fayez F. Abraham
  • Patent number: 4280336
    Abstract: A small portable cooler for carrying cylindrical type beverage containers and foodstuff. A handle is integrally molded with the body of the cooler so that it can be carried by one hand. A cold pack is supported in a coolant chamber which distributes cold air to the cylindrical container compartments within the cooler body. A food container is removably secured to a back wall of the container body. The back wall also serves as a support surface for the beverage containers about the food container.
    Type: Grant
    Filed: March 13, 1980
    Date of Patent: July 28, 1981
    Assignee: Holbro A.G.
    Inventor: Frank Taylor
  • Patent number: 4280337
    Abstract: A conventional ammonia refrigeration system is modified by adding thereto an automatic oil-separation and re-use system, which comprises a gravity-type separation tank installed between the bottom of a surge drum and the compressor and an intermittently operated valve for controlling draining of the separated oil from the bottom of the separation tank. The valve is opened for a widely pre-adjustable short time period at the beginning of each compressor-ON cycle, which is when the oil has had maximal time for settling-out from its mixture with the liquid ammonia. Then the oil is safely returned to the compressor.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: July 28, 1981
    Inventor: George T. Kemp
  • Patent number: 4280338
    Abstract: Flexible drive shaft, lubricated by a suitable grease, rotatably mounted within a flexible casing routed within a vehicle from an input to an output tip connected to a deflection instrument. The drive shaft and output tip are designed to pump the grease to a collection station so that collected grease serves as a cushion to limit contact of the drive shaft with the interior casing to thereby provide noise abatement for the rotating drive shaft.
    Type: Grant
    Filed: November 29, 1979
    Date of Patent: July 28, 1981
    Assignee: General Motors Corporation
    Inventors: Gilbert E. Shannon, David F. Friesorger
  • Patent number: 4280339
    Abstract: A sporadical torque transfer device for yielding element flexible shaft couplings of the tubular type, the device including two shaft end portions, each with two forked ends of two opposed symmetrical teeth having flanks, the teeth overlapping each other in meshing fashion with nominally a positive clearance between tooth flanks, the teeth centrosymmetric with the tubular element and positioned intermediate ends of the tubular element. Optionally, a sleeve has a diametrically oriented member attached to each of its ends and positioned ninety degrees from each other. Together, the cross members and sleeve define tooth receiving openings. The sleeve is positioned substantially coaxially with the shaft portions and the opposed teeth are positioned in the tooth receiving openings of the sleeve and cross members with positive clearance nominally maintained between the tooth flanks and cross members.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: July 28, 1981
    Assignee: The Gates Rubber Company
    Inventor: Robert E. Stuemky
  • Patent number: 4280340
    Abstract: The universal joint according to the invention comprises a drive element provided with at least two ball-races cooperating with rollers borne by a hub fast to a driven shaft, the outer surface of the drive element being substantially parallel with the inner surface of this element and including concave areas. It includes an insert having an inner surface which mates the outer surface of the drive element, while the outer surface of this insert has a convex contour to serve as a support for a sealing sheath, the insert ensuring filling of the concave areas. This insert is notably of plastics material over-molded on the drive element.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: July 28, 1981
    Assignees: Societe Anonyme Automobiles Citroen, Automobiles Peugeot
    Inventor: Jean A. Goguet
  • Patent number: 4280341
    Abstract: A telescopic drive shaft includes an axially extending inner shaft member slidably supported within an axially extending tubular shaped outer shaft member. Rolling bodies are mounted in one or a plurality of support members secured to the inner or outer shaft member. The rolling bodies project and roll along axially extending grooves in the other of the inner and outer shaft members. The rolling bodies provide relative sliding movement between the shaft members and also effect torque transmission between the shaft members. Each rolling body extends into at least one ring-shaped recess in its support member and guide balls located in the recess support the rolling body. Each recess is located in a plane parallel to the axis of the drive shaft, at least three guide balls are located in each recess, though a full ring of guide balls can be used.
    Type: Grant
    Filed: January 23, 1979
    Date of Patent: July 28, 1981
    Assignee: Uni-Cardan AG
    Inventor: Werner Krude
  • Patent number: 4280342
    Abstract: A protective pad or garment for use as a guard against injuries to the human body or parts thereof, incurred e.g. from saw blades or other sharp tools. The pad is made from a double-knit warp fabric of a synthetic material, the two layers of which are interconnected by pile threads, preferably consisting of polypropylene foil strips, which pile threads in at least one of said layers form meshes with the threads of another thread system, or with themselves. The resulting pad comprises a large number of the pile threads which by their nature and their bond to the mesh layer closest to the body resist the cutting effect of the saw blade or other sharp tool that may penetrate through the outer mesh layer.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: July 28, 1981
    Assignee: AB Aiser
    Inventors: Kjell Eng, Anders G. Bengtsson
  • Patent number: 4280343
    Abstract: An apparatus for the continuous wet treatment of liquid-permeable textile material includes a sieve drum located within a container that is filled with treatment liquid, with the drum being at least partially immersed within the liquid. A treatment chamber is formed between the sieve drum and one of the container walls and liquid is fed to this treatment chamber from a distributor duct located above the treatment chamber. The distributor duct includes a liquid discharge slot for feeding the liquid to the treatment chamber. A pump is provided for feeding liquid into the distributor duct and the liquid discharge slot is arranged to fed liquid uniformly across the operating width of the sieve drum.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: July 28, 1981
    Assignee: Vepa AG
    Inventor: Hans Fleissner
  • Patent number: 4280344
    Abstract: A drag cloth cleaning and rinsing device including a bucket-like receptacle, capable of bearing fluid, a box-shaped screen removably mounted within the opening of said bucket, the screen having sufficient depth to be received into the bucket so that a portion of the screen is immersed below the water level within the bucket, and a drag cloth squeezing and draining trough mounted on one side of the screen. The drag cloth is inserted below the fluid level in the bucket within the screen, the screen being used to compress the drag cloth repeatedly within the fluid medium in the bucket for cleaning the drag cloth. Once cleaned, the drag cloth is transferred to the trough where the fluid is squeezed out and largely removed from the cloth by compressing the cloth against the trough. The ends of the trough, or any portion thereof, are open to allow drainage back into the bucket.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: July 28, 1981
    Inventor: John D. O'Connor