Patents Examined by Lloyd
  • Patent number: 4981023
    Abstract: A vapor compression type refrigerator system which utilizes a liquid pump and an eductor to reduce compressor power conmsumption and thereby achieve exceptionally high coefficient performance values. The system is useful for air conditioning or for refrigeration in residential and commerical type buildings and is convertible to heat pump operation.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: January 1, 1991
    Assignee: Innovative Products, Inc.
    Inventors: C. K. Krishnakumar, Clyde K. Schafer
  • Patent number: 4981312
    Abstract: An electromagnetic shear lock comprising an electromagnet having an E-shaped cross section with a coil positioned about the middle leg of the E is mounted to a doorway and an armature is mounted to the door, where in one form the middle leg of the E is shortened to define a recess to receive an elongated armature member and provide mechanical reinforcement against shearing when the electromagnet is energized. The armature is constructed of at least two telescoping members where the outer armature member is U-shaped with legs which contact the outer legs of the electromagnet and the inner member is attracted into the defined recess and will engage the inner surfaces of the outer legs of the electromagnet. Even if the outer member is pryed down from the electromagnet, at least the inner armature members will still be in a magnetic circuit with the inner electromagnet armature member in the defined recess and providing mechanical reinforcement in engaging the inner surfaces of the outer legs.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: January 1, 1991
    Assignee: Harrow Products, Inc.
    Inventor: George Frolov
  • Patent number: 4979375
    Abstract: Method and apparatus for enabling a person to relax and enjoy the outdoors on a hot humid day, without being continuously exposed to water which is uncomfortable for many people. A thin flexible cooling mat is positioned upon a lounge chair or is placed flat on the ground or worn in the manner of a vest. Ordinary tap water circulates through the mat, and since the water is supplied from a conventional in ground supply main having a substantially lower temperature than the air, the person's body, in direct contact with the mat, will be kept cool. The cooling water may irrigate the backyard at the same time. Since an entire family can relax while being cooled in their back yard, air conditioners will be turned off to save money, conserve electrical power, and thus reduce atmospheric pollution.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: December 25, 1990
    Inventors: Robert L. Nathans, Walter C. Lovell
  • Patent number: 4979431
    Abstract: A box member for refrigerate transportation for containing perishables therein and transporting thereby. A gas fed from a refrigerating unit flows from above to below through a gas flow path and gas flow holes of an insulating plate in the vicinity of a ceiling of the box member. A damper device for closing the gas flow path during defrosting is provided in the vicinity of an inlet of the gas flow path. An air shut-off curtain which is suspended from the ceiling and a protecting mechanism thereof are provided at the rear portion of the box member. A water tank is provided at the inside of a front corner post, and a level gauge for visually confirming the water level of the water tank and a water feed port to the water tank are provided at the outside of the front corner post. The level gauge is provided with a discharge valve and a protective net.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: December 25, 1990
    Assignees: Mitsui O. S. K. Lines, Ltd., Daikin Industries, Ltd., Nippon Trailmobile Co., Ltd.
    Inventors: Shizuo Fujimoto, Yoshinori Akagawa, Takayuki Usui
  • Patent number: 4979383
    Abstract: This lock, which may be coded-keycard operated, has a set-table device on the inside of the door by which the maid, for instance, can be locked out. The lockout setting device is preferably in the form of a pushbutton or deadbolt turnpiece which manipulates a switch in the code-receiving circuitry. The lockout setting is automatically cancelled when the latch is retracted. When the setting device comprises a deadbolt turnpiece, the deadbolt is biased toward retracted position and the setting device holds the deadbolt extended. When the latch is retracted in the latter version, the retraction cancels the lockout setting and permits the deadbolt to retract under the power of the deadbolt biasing spring.The invention also includes a non-code-operated embodiment in which a deadbolt is spriing driven to retracted position as the latch is retracted in latching to protect the deadbolt, lock and door frame.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: December 25, 1990
    Assignee: Yale Security, Inc.
    Inventor: Clay E. Tully
  • Patent number: 4979377
    Abstract: A chamber comprising an air humidification device is disclosed. This chamber comprises an improved humidification device. The chamber has a vessel containing water which gets evaporated to humidify the water of the chamber. When a refrigerated chamber is used, the water vapor gets condensed and solidifies in forming frost on an evaporator. Advantageously, the defrosting water is used to re-humidify the air of the chamber in making this water follow a path comprising projecting features and negative slopes. The non-evaporated defrosting water is either added to the tank or rejected outwards. The disclosed device can be applied chiefly to the humidification of chambers. It can be applied notably, to the humidification of refrigerated chambers such as, for example, chambers designed for the storage, keeping and aging of bottled wine. It can also be applied to refrigerated chambers for the storage of foodstuffs or photosensitive materials such as, for example, photographic films or photosensitive paper.
    Type: Grant
    Filed: March 21, 1989
    Date of Patent: December 25, 1990
    Assignee: Societe d'Electromenager du Nord Selnor
    Inventors: Hughes Fievet, Georges Vennin
  • Patent number: 4977767
    Abstract: A flat key has a blade formed with bitting along at least one of its edges, with a pair of relatively shallow, outwardly open, and generally parallel but spaced grooves formed in at least one of its faces extending generally longitudinally in a nonstraight path from the tip, and with a relatively deep and outwardly open groove formed in the one face and extending generally longitudinally in a nonstraight path from the tip generally nonparallel to the shallow grooves. This key is used with a lock that has a relatively stationary lock housing containing a rotatable lock cylinder formed with an axially outwardly open flat passage shaped to snugly receive the key blade, and independent first and second slides displaceable in the cylinder generally of the axis and parallel to the one face of a key in the passage and provided with respective long and short formations engageable generally radially of the axis with the deep and shallow grooves.
    Type: Grant
    Filed: March 24, 1989
    Date of Patent: December 18, 1990
    Assignee: Evva-Werk Spezialerzeugung Von Zylinder- und Sicherheitsschlossern Gesellschaft m.b.H. & Co. Kommanditgesellschaft
    Inventor: Kurt Prunbauer
  • Patent number: 4977754
    Abstract: A beverage merchandiser for refrigerating and displaying single-serving containers disposed on gravity feed shelves has a refrigerated compartment accessed by sliding, multi-pane glass panel doors mounted on rollers engaging side-by-side overhead tracks. An evaporator is disposed inside the refrigerated compartment near the top and rear walls of same and is configured with a shallow height relative to the depth of the evaporator to save space. A duct panel forms a duct along the top wall of the refrigerated compartment to direct cooled air from the evaporator toward the product nearest the doors of the merchandiser to keep this product cool, since it is the next-to-be-purchased product. The glass panes of the doors are kept defogged by a defogging mechanism. One of the defogging mechanisms uses air warmed in a housing for the condenser and compressor and provides same to a slot oriented in a grill, which is disposed beneath the bottom edge of the doors.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: December 18, 1990
    Assignee: Specialty Equipment Companies, Inc.
    Inventors: Ronald D. Upton, Michael A. Branz, Edmund S. Richardson
  • Patent number: 4977762
    Abstract: A locking device for a video cassette recorder and/or player having a panel with an opening formed therein in which a video cassette is to be inserted and a movable cover closing the opening includes a lock restricted to operation by authorized personnel from outside the video cassette recorder for selectively permitting and preventing movement of the cover.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: December 18, 1990
    Inventor: Wayne V. Dennis
  • Patent number: 4978153
    Abstract: A latch is known for a laboratory apparatus, for locking a cover or door on its housing, having a hook 12 in one of the parts to be locked and a lock 1 in the other. The lock has a pivotable locking element 3 with a claw-shaped opening 9 which engages the hook 12 against the pressure of a spring and is releasable from engagement with the hook by an actuating element 7. In order to provide a latch of this kind with means to meet strict safety requirements and ensure secure locking during operation of the apparatus, an additional closing element 4, opening element 5, and securing element 6, which engage one another, are disposed between the locking element 3 and the actuating element 7.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: December 18, 1990
    Assignee: Heraeus Sepatech GmbH
    Inventors: Christian Hirsch, Dieter Schroder, Eckart Kopowski, Helmut Kocher
  • Patent number: 4976117
    Abstract: The device comprises at least two reactors (R1, R2) containing the same solid compound, communication circuits between these reactors, the evaporator (E), the condenser (C) and the gas collector (Co) and means are provided for successively starting the solid-gas reactions in the two reactors and for producing the openings and closings of the various communication circuits in a predetermined order to obtain a continuous production of cold.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: December 11, 1990
    Assignees: Faiveley Enterprises, Societe Nationale Elf Aquitaine
    Inventors: Georges Crozat, Michel Lebrun
  • Patent number: 4976116
    Abstract: Disclosed is a cold-air generating device which comprises a first refrigerating system 15 including a first evaporator 1 and a compressor 4 and adapted to cool air to such a degree that the water contained therein will not become frozen, and a second refrigerating system 26 including a second evaporator 2 and a compressor 16 and adapted to further refrigerate the air dehumidified and cooled while passing through the first evaporator 1 down to a temperature below freezing point. Air inlets 27 and 28 may be provided in the upper sections of the first and second evaporators 1 and 2, respectively, so that a downward airflow will be generated therein, the respective lower sections of the first and second evaporators 1 and 2 being connected to each other through a drain pan 3. Furthermore, gauze 29 may be provided on that side of the second evaporator 2 which is connected to the first evaporator 1.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: December 11, 1990
    Assignee: Nihon Medix Co., Ltd.
    Inventors: Masaharu Hayama, Kenji Takaoka, Yasushi Torai, Toshiharu Fukada
  • Patent number: 4976124
    Abstract: A key holder and a method of holding keys is provided wherein the key holder is formed of a single continuous length of multiply-bent wire to define a plurality of legs. The legs form a rectangle/square with an arcuate portion there-behind. Keys are slid between the legs of the arcuate portion and at least one of the legs of the rectangular/square portion to the end of one of the legs. It is then slid onto the rectangular/square portion by sliding onto at least one leg.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: December 11, 1990
    Inventor: Calvin E. Sanders
  • Patent number: 4976477
    Abstract: A motor vehicle trunk with a trunk lid locking device comprising a striker fixed to the lid, a striker receiving and locking mechanism, a motor for actuating this mechanism, and a control device for controlling the motor. The trunk has, in combination with the locking device, a trunk lamp, a trunk lamp switch, and means connected between the control device and its power supply and interlockingly coupling the opening and closing movement of the lid with the operation of the trunk lamp switch, whereby the trunk lamp is lit only when the trunk lid is opened, and the motor becomes operatable in response to the signal from a striker monitoring sensor only when the trunk lamp switch is in the state for extinguishing the trunk lamp.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: December 11, 1990
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Akihiro Nakao
  • Patent number: 4976114
    Abstract: An air conditioning unit having a power pack which includes an internal combustion engine coupled to a refrigerant compressor on a metallic support tray, with said air conditioning unit being suitable for mounting on the roof of a building via support curbing, notwithstanding the noise and vibration produced by the internal combustion engine. The air conditioning unit includes a metallic main frame, to which a metallic power pack support frame is fixed. The power pack support frame includes members which are continuously supported by the main frame via a low frequency damping material, such as cork, and members which extend between the supported members, but which are otherwise unsupported, to enable the unsupported members to function as leaf springs. The support tray of the power pack is mounted to the unsupported members of the power pack support frame via a plurality of isolation mounts.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: December 11, 1990
    Assignee: Thermo King Corporation
    Inventor: Thomas O. Manning
  • Patent number: 4974889
    Abstract: The security device comprises a length of cable (1) for spanning a door opening and two fixing means (2,3;4,5) secured to parts (7,8;11) defining that opening, the cable being securable at each end to the fixing means and being constructed and arranged in such a manner that the door can be moved into an ajar position, in which it engages the cable, but no further even when the door is opened with extreme force.
    Type: Grant
    Filed: December 20, 1984
    Date of Patent: December 4, 1990
    Inventor: Laurence North
  • Patent number: 4974421
    Abstract: A plastic primary pan assembly for use in conjunction with an air conditioning system which includes a C-shaped drain plastic pan, a pan cover having a raised portion disposed around a blow outlet thereof, and an U-shaped supporting bracket having a pair of locking end members and a pair of elongated channels and an elongated aperture being mounted on the fan cover and a motor through a motor plate, whereby the plastic primary pan assembly can be easily associated with and separate from the air conditioning system and easily adjusted to incline the plastic primary pan for draining condensate water through an outlet disposed in the plastic primary pan.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: December 4, 1990
    Assignee: Permanent Solution Industries, Inc.
    Inventor: Il Y. Kim
  • Patent number: 4974433
    Abstract: A car lock includes an elongated tube to which a first lock hook is fixed and a second lock hook is movably mounted. A connecting member is provided for pivotally interconnecting a locking rod and the elongated tube so that the locking rod can be rotated to a position substantially perpendicular to the elongated tube and an abutting plate, rotatably connected to the locking rod, can be brought into contact with a stereo receiver detachably received in the dashboard of a car. The locking rod passes through a positioning member so that the second lock hook can be inserted into a channel formed in the positioning member when the second lock hook is moved to hook the steering wheel of the car and the locking rod is rotated to a position substantially perpendicular to the elongated tube.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: December 4, 1990
    Inventor: Jin-Yuan Wang
  • Patent number: 4974426
    Abstract: A cooler for storing ice, water and food stuff defining an insulated compartment. Several beverage container holders are disposed around the housing and include connecting openings that allow the cold water in. These holders extend below the plane of the bottom wall in order to maximize the level of the water contained in the holder and thereby increasing the heat exchange area with the container. At least one container dispensing assembly is provided for stacking up the containers adjacent to the peripheral wall and allowing the containers to roll over the bottom wall and outwardly through an aperture on the lower end of the wall. The bottom wall includes a depression in the area below the aperture to cause the water to accumulate thereon and increase the heat exchange area with the container as it passes through. A convexity on the internal surface of the bottom wall prevents any water from collecting thereon.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: December 4, 1990
    Inventors: Sergio G. Gomez, Sergio J. Gomez
  • Patent number: 4972695
    Abstract: Disclosed herein is a cylinder lock which is proof against lock pickers. The cylinder lock comprises a case having a cylindrical bore formed therein and an axially extending lock groove exposed to the cylindrical bore; a rotor rotatably disposed in the cylindrical bore; a plurality of tumblers slidably received in slits formed in the rotor, each tumbler having a head which is projectable into the lock groove when the rotor assumes a given angular position relative to the case; springs for biasing the tumblers radially outward from the slits of the rotor; and a structure for making the distances by which the heads of the tumblers are projected into the lock groove of the case different from one another.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: November 27, 1990
    Assignees: Nissan Motor Co., Ltd., Kokusan Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Haruo Mochida, Toshikazu Kobayashi, Hidekazu Sato, Mikio Masaki