Movable Partition Within Cooled Compartment Patents (Class 62/329)
  • Patent number: 11598571
    Abstract: A vacuum adiabatic body between a first space and a second space includes an alternating current line through which AC current flows as a driving source, a direct current line through which direct current flows as a driving source, and a signal line through which a control signal flows as electric lines configured to electrically connect the first space to the second space. Thus, the number of lines passing through the vacuum adiabatic body may be reduced.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 7, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Duchan Ki, Wonyeong Jung, Deokhyun Youn
  • Patent number: 11468397
    Abstract: Described and presented is a delivery vehicle having a consignment store for receiving, storing and reissuing consignments, having a handover device for handing over consignments from the consignment store to a displacing device, and having a control device for controlling at least the displacing device. The displacing device is designed for delivering consignments to a location outside the delivery vehicle by displacing the consignments and so as to be adjustable from a retracted position into a deployed position and back, and the displacing device is designed to be height-adjustable for delivering consignments at different height levels outside the delivery vehicle.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: October 11, 2022
    Assignee: Deutsche Post AG
    Inventors: Christoph Dautz, Markus von Gostomski, Florian Markert, Jasmin Quill
  • Patent number: 11402141
    Abstract: The refrigerator and freezer conversion system addresses the problem described above. The refrigerator and freezer conversion system is configured for use with a refrigerator. The refrigerator and freezer conversion system incorporates an insulating cabinet and a refrigeration system. The refrigeration system maintains the temperature within the insulating cabinet. The insulating cabinet is organized into a plurality of chambers. The refrigeration system independently maintains the temperature within each of the plurality of chambers. By independently maintained is meant that the temperature maintained in any initial chamber selected from the plurality of chambers is not affected by the temperature of any subsequent chamber selected from the plurality of chambers.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: August 2, 2022
    Inventor: Tracy Polk
  • Patent number: 11267637
    Abstract: A configurable storage container system for storing items includes a tote, an insulated shell with a lid, and an insulated divider configured to divide the internal cavity of the tote into two sections. The insulated shell is configured for receiving the tote. The insulated shell includes a base and a plurality of side walls and is foldable between an expanded configuration and a collapsed configuration such that the tote fits inside the insulated shell when the insulated shell is in the expanded configuration. The lid is configured for closing the tote inside the insulated shell when the insulated shell is in the expanded configuration.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: March 8, 2022
    Assignee: Otter Products, LLC
    Inventors: Grady E. Barfoot, Joshua R. Cornish, W. Travis Smith, Alan V. Morine
  • Patent number: 10914512
    Abstract: For improving the energy efficiency of a home appliance device, in particular a home refrigeration appliance device, the appliance device has at least one inner liner defining at least one storage space, at least one functional unit which is in an assembled state is connected to the inner liner and is located in the storage space, and at least one seal which is in the assembled state compressed between at least one mating surface of the functional unit and the inner liner. The inner liner has at least one protrusion, which the seal abuts on in the assembled state.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: February 9, 2021
    Assignee: BSH Hausgeraete GmbH
    Inventors: Prashantagouda Hosamani, Robert Stahl
  • Patent number: 10533803
    Abstract: An apparatus for cooling liquids that includes a tank that has two longitudinal walls, two lateral walls and a bottom, and cooling flasks that each of them has two longitudinal walls, two lateral walls and a bottom. The flasks are designed to contain coolant. The lateral walls and at least one longitudinal wall of each flask has at least one protrusion smaller than 2.5 millimeters. The flasks are designed to be set within the tank in such a way that the protrusions are attached to the longitudinal walls of the tank. The protrusions create a gap smaller than 2.5 millimeters between each two adjacent flasks and between the lateral walls of the flasks to the longitudinal walls of the tank. These gaps constitute a single cooling space. The total volume of the flasks is three times greater or more than the volume of the single cooling space.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: January 14, 2020
    Inventors: Reut Rosenblum, Yedidya Yochai Van Dijk, Mely Rosenbloom
  • Patent number: 9797646
    Abstract: A refrigerator includes a cold air supply device received in an insulating partition that defines a storage compartment into upper and lower storage compartments. As cold air is supplied into the storage compartment below the insulating partition through the cold air supply device, the refrigerator has enhanced productivity and interior volume efficiency.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: October 24, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Yang Yeol Gu
  • Patent number: 9407176
    Abstract: An integrated system of circuits for serial fan structure includes a first and a second fan connected back to back. A first driving unit and a first control unit for the first fan and a second driving unit and a second control unit for the second fan are sequentially electrically connected to a circuit board in the second fan. Further, a first coil assembly of the first fan and a second coil assemble of the second fan are also electrically connected to the circuit board in the second fan; and some low-use-rate electronic circuits are included in a common circuit unit of the first and the second fan. Therefore, the serial fan structure can save one circuit board and some low-use-rate electronic circuits from the first fan to achieve the purpose of reducing the manufacturing cost of the serial fan structure.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: August 2, 2016
    Assignee: ASIA VITAL COMPONENTS CO., LTD.
    Inventors: Chu-Hsien Chou, Yu-An Lin
  • Patent number: 9226577
    Abstract: A modular storage system for an interior compartment of a safe and method for storing guns comprises standardized parts for easy construction and assembly, flexible arrangement and configurations, and use in a wide variety of safes. The interior compartment of the safe is configured to have a back wall and two side walls defining an interior width of the safe. The system comprises a plurality of shelves each having a standardized shelf width. The interior width of the safe is a whole number multiple of the standardized shelf width. A gun storage bay is provided with an exterior bay width equal to the standardized shelf width. The plurality of shelves and the gun storage bay are removably mounted on the back wall.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: January 5, 2016
    Assignee: Prosteel Security Products Inc.
    Inventors: Richard E. Stepp, Keith Sanders
  • Patent number: 7743623
    Abstract: An ice making and storing system which may be mounted in a refrigeration appliance. The ice making and storing system includes an ice making mechanism, a removable ice storage receptacle positioned adjacent to the ice making mechanism, an insulated cover for the ice making mechanism with a portion engageable with the ice storage receptacle to provide a thermally tight seal between the cover and the ice storage receptacle.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: June 29, 2010
    Assignee: Whirlpool Corporation
    Inventors: James Charles Leslie Guarino, Marcus Roland Fischer, Jeffrey J. Anselmino
  • Patent number: 6779357
    Abstract: A mullion shelf assembly is provided that includes a shelf having translucent upper and lower surfaces and contains an insulative medium that resists heat transfer between the surfaces. The mullion shelf assembly may also include a shelf with an upper surface in fluid communication with a sump. The sump is in fluid communication with a drain that remove condensation from the compartment bounded by the mullion shelf assembly.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: August 24, 2004
    Assignee: Viking Range Corporation
    Inventor: Billie Ray Fann
  • Publication number: 20040144103
    Abstract: Quick cooling device is disclosed for quick cooling of canned or bottled drink from a room temperature, quickly. A case has an inside space divided into a cavity and a device chamber, a door is provided on a front part of the case for opening/closing the cavity. Means for bringing a cold accumulation pack into contact with a drink container, and shaking the cold accumulation pack and the drink container together, to cool down drink in the container quickly is provided in the cavity. A refrigerating system is provided in the case for cooling the cold accumulation pack.
    Type: Application
    Filed: October 28, 2003
    Publication date: July 29, 2004
    Applicant: LG Electronics Inc.
    Inventors: Myung Ryul Lee, Seong Jae Kim, Wook Yong Lee
  • Patent number: 6751969
    Abstract: The present invention relates to a device for use in maintaining a temperature in a vehicle or a shipping container. The device includes a roller having a sheet attached to the roller. One end of the sheet is connected to the roller and the sheet can be rolled around the roller and unrolled from the roller. The sheet has a size such that the sheet can extend substantially transversely across the cargo area of the vehicle or shipping container when the device is mounted on the vehicle or shipping container and the sheet is unrolled from the roller. The device allows for a user to simply unroll the unattached end of the sheet from the roller when the user needs to load or unload goods in the cargo area of the vehicle or shipping container in which the device is mounted.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: June 22, 2004
    Assignee: Kaolin Mushroom Farms, Inc.
    Inventors: Mark Moran, John Pia
  • Publication number: 20040107712
    Abstract: The present invention relates to a device for use in maintaining a temperature in a vehicle or a shipping container. The device includes a roller having a sheet attached to the roller. One end of the sheet is connected to the roller and the sheet can be rolled around the roller and unrolled from the roller. The sheet has a size such that the sheet can extend substantially transversely across the cargo area of the vehicle or shipping container when the device is mounted on the vehicle or shipping container and the sheet is unrolled from the roller. The device allows for a user to simply unroll the unattached end of the sheet from the roller when the user needs to load or unload goods in the cargo area of the vehicle or shipping container in which the device is mounted.
    Type: Application
    Filed: December 4, 2002
    Publication date: June 10, 2004
    Inventors: Mark Moran, John Pia
  • Patent number: 6658883
    Abstract: The present invention teaches systems and methods for improving the thermal efficiency of an existing refrigeration system having a heat exchanger comprising: an enclosure having side walls for enclosing at least a portion of the heat exchanger and being removably attached to the existing refrigeration system; a venting system for flowing cooling air within proximity with the heat exchanger and releasing the cooling air to an outside environment in order to increase a release of heat from the heat exchanger, wherein the enclosure is operable for reducing heating of an inside environment by the existing refrigeration system, or by functionally channelling the heat so it increases heat when desirable while minimizing the impact to refrigeration.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: December 9, 2003
    Assignee: Sun-RG
    Inventor: John Rainbolt
  • Patent number: 6606875
    Abstract: An enclosed container for storing temperature sensitive goods. The container has opposed side walls and end walls as well as a floor and a ceiling. First and second bulkheads are moveably mounted within the container for dividing the container into three separate compartments. Two end compartments are services by fixed heat exchanges for conditioning the air in the compartments. A center compartment is serviced by a movable heat exchanger. By repositioning the bulkheads and the movable heat exchanger the volume and thus the load carrying capacity of the compartments can be varied to accommodate different types of cargo and the temperature levels in the compartment independently maintained.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: August 19, 2003
    Assignee: Carrier Corporation
    Inventors: Alain Grand, Bernard Valentin, Philippe Vaas
  • Patent number: 6457402
    Abstract: Apparatus for aiding in the ripening of produce that includes a sealed container having a refrigeration unit for supplying conditioned air for cooling produce stored in a container. A gas generator is arranged to mix a ripening gas with conditioned air within the container. A fresh air exchanger is integrated into the refrigeration unit for venting conditioned air from the container to ambient and exchanging the vented air with outside fresh air. The fresh air exchanger is automatically operated by a controller which coordinates the cycling of the gas generator with the exchange of fresh air so that the ripening process can be closely regulated.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: October 1, 2002
    Assignee: Carrier Corporation
    Inventors: Jan M. Parker, Michael E. Davis
  • Patent number: 6443056
    Abstract: Apparatus for delivering conditioned air from the mixing chamber of a mobile container into a pair of supply air plenums that extend rearwardly along the side walls of the container. A series of fan units are contained within pods located within the mixing chamber adjacent to the front end of each supply air plenum. The pods are stacked in vertical alignment from the floor of the container to about the height of the container ceiling. Each pod includes two fan units that are contained in separate compartments. Each fan unit can be removed easily from the compartment and each pod unit can similarly be removed separately from the stack to facilitate mounting and removal of the pods as well as the individual fan units.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: September 3, 2002
    Assignee: Carrier Corporation
    Inventors: David D. Kiefer, Michael E. Davis, David R. Carey
  • Patent number: 6431060
    Abstract: An enclosed container having an air conditioning unit for providing conditioned air to the mixing plenum of an air handling system for circulating conditioned air through a load of perishable goods stored within the container. An open-sided supply duct is connected to the plenum that runs along the center of the length of the container and a pair of spaced-apart, open-sided return ducts pass along the side walls of the container parallel to the supply duct. A load of perishable goods is stacked between the ducts and blower units are mounted within the return ducts for drawing supply air through the load and returning the air into the mixing plenum at an increased pressure. The return air in the plenum is combined with conditioned air from the refrigeration unit and is circulated back into the supply duct for reuse in the system.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: August 13, 2002
    Assignee: Carrier Corporation
    Inventor: August William Gutheim
  • Patent number: 6405644
    Abstract: The present invention describes an apparatus useful for maintaining perishable products in a controlled environment as a modular unit. This modular unit, or self-contained apparatus, encompasses all the equipment necessary for installation while offering temperature stability, simplified maintenance requirements, and ultimately, precise control of ripening. Designed for efficiency, typical labor and equipment costs and energy consumption of a ripening room are reduced with the palletized ripening cabinet. The present invention may also be easily adapted for the combination of units or for various temperature requirements and otherwise from pre-cooler to freezer.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: June 18, 2002
    Inventor: Robert J. Windecker
  • Patent number: 6012384
    Abstract: A mobile container adapted for transporting perishable goods includes a front wall, a rear wall, a pair of side walls extending therebetween so as to define an elongated enclosure having a longitudinal axis and adapted to receive a cargo load. An air recirculation plenum is defined in the enclosure adjacent to the front wall. A refrigeration system is in fluid communication with the air recirculation plenum and is adapted to induct air at a first temperature and to exhaust air at a second temperature. A pair of air delivery plenums extend from the bulkhead along the length of the enclosure parallel to the longitudinal axis. Each of the pair of air delivery plenums is defined by a corresponding one of the pair of side walls and a plenum wall disposed spaced from the corresponding side wall and extending from the upper margins of the enclosure such that the plenum wall is adapted to be co-extensive and in abutting contact with a portion of the cargo load.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: January 11, 2000
    Assignee: Trans Tech Holdings Group
    Inventors: Mark A. Badalament, Daniel S. Harmsen
  • Patent number: 5789007
    Abstract: A ripening room for controlled ripening of produce includes a chamber defined by a ceiling, a floor, and a plurality of walls connecting the ceiling and the floor. The chamber is configured to receive two rows of boxed produce that are spaced apart from each other to define an interstitial volume therebetween. Each row of produce is proximate and spaced apart from one of the walls to define a side airspace therebetween. The ripening room also includes an air control system for transferring air between the side airspaces and the interstitial volume and controlling the temperature of the transferred air. The side airspaces and the interstitial volume are generally enclosed to inhibit airflow therebetween except for airflow through the air control system and through openings in the produce boxes.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: August 4, 1998
    Assignee: Cool Care, Ltd.
    Inventor: Michael Bianco
  • Patent number: 5720185
    Abstract: A refrigerator having a cool air dispersing shelf is inherently installed with a dispersing apparatus for spreading the cool air to the shelf for consistently dispersing the cool air throughout the interior of a cooling chamber within a short time period, and supplies the cool air to respective shelves simply by installing/removing the shelves. For this, a supply duct circulated with the cool air supplied into the cooling chamber therethrough has at least one discharging hole toward the cooling chamber, and an open/close member is installed in the supply duct for opening/closing the discharging hole in accordance with the installation/separation of the shelf. Also, the shelf is formed with cool air spray holes in the lower plane and a pushing portion provided by one end of a cool air suction hole for opening/closing the open/close member.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: February 24, 1998
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Sang-Moo Lee
  • Patent number: 5626028
    Abstract: A modular food display case system permits a particular display case arrangement to be easily customized from a basic design. A plurality of modular bed sections, which are pre-manufactured from a lightweight composite honeycomb material, are used as the basic building blocks of the customized display case, and are arranged end to end. Their lengths may be cut and angled as desired to further customize the arrangement of the customized display case. Partitions divide different temperature-controlled zones within the display case, and may be positioned anywhere along the length of the case, according to the specific arrangement and lengths of hot, cold, and dry (ambient temperature) zones employed, without regard to the ends of the case or the location of joints separating each of the bed sections.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: May 6, 1997
    Assignee: Architectural Stainless, Inc.
    Inventors: Kenneth T. Graat, Randall C. Danta
  • Patent number: 5577822
    Abstract: A refrigerator is divided into a freezing compartment and a cooling compartment. An intermediate partition wall separates the compartments. The partition wall is vertically adjustable for increasing a volume of one of the compartments while simultaneously reducing a volume of the other compartment. The door carries a vertically adjustable sealing member for engaging a front surface of the partition wall. The freezing compartment includes an evaporator separated from the remainder of the freezing compartment by a vertical isolating wall, a portion of which isolating wall is spring-biased toward the partition wall.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: November 26, 1996
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jin K. Seon
  • Patent number: 5373780
    Abstract: An apparatus is provided for controlling the ripening of produce. The apparatus includes a chamber having a ceiling, a floor and a plurality of walls. Positioned in the chamber is a support and position structure to support two rows of palletized produce and to space the palletized produce away from the walls to define a fluid circulation space around the palletized produce. The rows of palletized produce are spaced apart to define an interstitial volume therebetween. Each row of palletized produce includes at least an upper and a lower tier with a vertical spacing therebetween. A flexible sealing strip is affixed to the support and position structure to generally seal the vertical spacing between the tiers from the fluid circulation space.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: December 20, 1994
    Assignee: Cool Care Consulting, Inc.
    Inventor: Michael Bianco
  • Patent number: 4895001
    Abstract: An expandable refrigeration system for use in dispensing products to the public, the system including a base unit with a product containing chamber, a refrigeration system in the base unit and having a compressor and condenser portion and a fan for moving ambient air past the condenser, an evaporator cabinet supported adjacent the refrigeration system having an evaporator therein which is connected to the compressor and condenser of the refrigeration system and a fan for moving air past the evaporator whereby the air is coated, openings through which cooled air from the evaporator is conducted into the base unit product containing chamber, a slave unit having a product containing chamber contiguous with the base unit, first and second ducts communicating the interior of the base unit product containing chamber with the slave unit product containing chamber so that cooled air circulated in the base unit is also circulated in the slave unit allowing the addition of increased product containing space without an
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: January 23, 1990
    Inventor: Joseph S. Jondahl
  • Patent number: 4887437
    Abstract: An integral false ceiling for a refrigerated vehicle body using a sealed ductwork, flow restriction and bleed means to provide selective transmission of refrigerated air to one or more cargo compartments in the vehicle body and return of air to an air conditioning unit, enhancing temperature control and minimizing intrusion into the cargo compartments.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: December 19, 1989
    Assignee: Trailmobile Inc.
    Inventors: Gary Fenton, Tom Huddle
  • Patent number: 4879877
    Abstract: A method and system for conditioning the cargo containing space of a vehicle are disclosed wherein refrigerated or heated air is introduced into a supply duct and circulated through the cargo to a return duct. The return duct or ducts are preferably formed by movable reefer pallets or racks, controlled openings in the pallets regulating flow into the return duct to develop a uniform pressure differential between the cargo space and the return duct and achieve more uniform cooling. Heat barrier spacers are arranged on vertical walls to minimize heat passage to the cargo. A method and system are also disclosed for supplying refrigerated gas through a supply duct and returning it through a return duct, a control unit being normally responsive to a master temperature sensor arranged in an inlet, a sub-master temperature sensor being arranged for sensing freezing or chilling conditions and overriding the master temperature sensor.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: November 14, 1989
    Inventor: Gerald E. Hicke
  • Patent number: 4876860
    Abstract: A refrigerator with a plurality of storage chambers is disclosed. The interior of the refrigerator is divided into at least two chambers by an adjustable shelf. An air passageway is formed by a gap between the refrigerator cabinet and an inner separation member. Air is circulated past an evaporator through the air passageway and into each storage chamber. Air collected from each storage chamber passes over the evaporator after flowing through a connecting hole in the rear of the inner separation member.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: October 31, 1989
    Assignee: Sanden Corporation
    Inventor: Kozaburo Negishi
  • Patent number: 4638644
    Abstract: An improved refrigerator of the forced refrigerated air type is disclosed in which a divider shelf is provided for the convenience of the user who wishes to convert a portion of the freezer section into a standard refrigeration section or a portion of the standard refrigerator section into a freezer section. The shelf is formed of an insulating material and is dimensioned and shaped to be positioned in a selected compartment in any of a plurality of selectable locations. The shelf has a resilient sealing member along peripheral portions which engage the corresponding walls of the compartment in which it is positioned so as to permit the shelf to selectively alter the flow of refrigerated air in such a manner as to permit the separate thermostatic temperature control of the separate sections created by the shelf.
    Type: Grant
    Filed: February 28, 1984
    Date of Patent: January 27, 1987
    Inventor: Edward Gidseg
  • Patent number: 4505126
    Abstract: A transport system for food products contemplates a land vehicle with a van body and a refrigeration unit and a food product carrier which may be inserted and withdrawn from the interior of the van body. The carrier has a plurality of compartments for housing the refrigerated food products and when the carrier is in its operative position in the van body, it is arranged to cooperated with the refrigeration unit so that the unit serves to refrigerate the food products in one of the end compartments of the carrier. Between the compartments, the carrier is provided with movable panels that are equipped with motorized fans for circulating air between adjacent compartments. This circulates air between the compartments and the arrangement is such the temperature range maintained in each compartment rises from one compartment to the next. Each compartment is accessible from the exterior of the van body and through aligned doorways in the adjacent side walls of the van body and carrier.
    Type: Grant
    Filed: June 6, 1984
    Date of Patent: March 19, 1985
    Assignee: Certified Grocers of Florida, Inc.
    Inventors: Robert Jones, Hubert R. Thompson
  • Patent number: 4467618
    Abstract: An improved refrigerator of the forced refrigerated air type is disclosed in which a divider shelf is provided for the convenience of the user who wishes to convert a portion of the freezer section into a standard refrigeration section or a portion of the standard refrigerator section into a freezer section. The shelf is formed of an insulating material and is dimensioned and shaped to be positioned in a selected compartment in any of a plurality of selectable locations. The shelf has a resilient sealing member along peripheral portions which engage the corresponding walls of the compartment in which it is positioned so as to permit the shelf to selectively alter the flow of refrigerated air in such a manner as to permit the separate thermostatic temperature control of the separate sections created by the shelf.
    Type: Grant
    Filed: July 15, 1981
    Date of Patent: August 28, 1984
    Inventor: Edward Gidseg
  • Patent number: 4304101
    Abstract: An improved refrigerator of the forced refrigerated air type is disclosed in which a divider shelf is provided for the convenience of the user who wishes to convert a portion of the freezer section into a standard refrigeration section or a portion of the standard refrigerator section into a freezer section. The shelf is formed of an insulating material and is dimensioned and shaped to be positioned in a selected compartment in any of a plurality of selectable locations. The shelf has a resilient sealing member along peripheral portions which engage the corresponding walls of the compartment in which it is positioned so as to permit the shelf to selectively alter the flow of refrigerated air in such a manner as to permit the separate thermostatic temperature control of the separate sections created by the shelf.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: December 8, 1981
    Inventor: Edward Gidseg