Patents Represented by Attorney, Agent or Law Firm Joel M. Van Winkle
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Patent number: 5853159Abstract: A support arrangement for a fan motor in a refrigerator. The fan motor includes first and second axial damper elements which extend from opposite sides of the fan motor, respectively. A cavity is provided in the inner liner of the refrigerator for forming a seat to receive one of the damper elements of the fan motor. A bracket is attached to the inner liner and has a cavity forming a seat for the other damper element such that the fan motor is captured between the bracket and the inner liner. The bracket further includes end projections to which a volute casing can be attached such that the volute casing is positioned in correspondence with the fan motor.Type: GrantFiled: April 17, 1997Date of Patent: December 29, 1998Assignee: Whirlpool CorporationInventors: Cesare Gorini, Eddie Teoh
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Patent number: 5848601Abstract: A pump system for a dishwasher including a pump housing defining a pump chamber having an inverted frustroconical shape including an upwardly angled annular outer wall. An impeller is disposed within the pump chamber. An annular soil collection chamber is disposed partially above the pump chamber such that the bottom wall of the soil collection chamber forms the top wall of the pump chamber. Wash liquid is supplied into the soil collection chamber from the pump chamber through an opening provided in the bottom wall of the soil collection chamber located at the upper, peripheral portion of the pump chamber. The upwardly angled annular wall of the pump chamber promotes soil movement into the soil collection chamber by directing soils toward the upper portion of the pump chamber. The soil collection chamber is formed by an annular soil collector housing and a cover.Type: GrantFiled: October 10, 1997Date of Patent: December 15, 1998Assignee: Whirlpool CorporationInventor: Edward L. Thies
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Patent number: 5815961Abstract: A clothes treating apparatus and method for subjecting clothes items to moisture, pressure and heat for refreshing and dewrinkling the clothes items. A cabinet defines an interior region for receiving clothes, the interior region having opposed inner side surfaces. A door is hingedly connected to the cabinet for closing the interior region. An inflatable hanger for supporting shirt-like clothes items is disposed within the interior region. A blower selectively inflates the inflatable hanger for pressing the shirt-like clothes item against the cabinet inner side surfaces. A steam generation means is provided for introducing moist air into the cabinet for humidifying the clothes item disposed therein. A heater and fan supply heated air into the interior region for drying the shirt-like clothes items disposed therein. During the dewrinkling cycle, steam is introduced into the interior region while the inflatable hanger assembly is periodically inflated.Type: GrantFiled: June 6, 1997Date of Patent: October 6, 1998Assignee: Whirlpool CorporationInventors: Kurt A. Estes, Phalguni S. Roy, David Hung-Chih Chen, Kevin S. Maki
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Patent number: 5810576Abstract: The method consists of providing a portion of greater cross-section in the gas feed conduit between the electromagnetic valve and the diffuser in a gas appliance, preferably for cooking or heating food.Type: GrantFiled: March 27, 1997Date of Patent: September 22, 1998Assignee: Whirlpool CorporationInventors: Daniele Franchi, Luca Frasnetti, Marco Maritan
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Patent number: 5808278Abstract: An appliance capable of being operated in compliance with the Orthodox Jew requirement that no work shall be done on the Sabbath. The applicance has a control system that monitors and controls all of the components of the applicance. The control system can be activated so that it prevents all visual displays and audible alarms from being actuated by the user during the Sabbath. The control system also prevents any actions of the user from causing the machine to do work.Type: GrantFiled: October 31, 1996Date of Patent: September 15, 1998Assignee: Whirlpool CorporationInventors: Chang Hwan Moon, Jonathan T. Smith
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Patent number: 5784902Abstract: An automatic washer having an agitator that is responsive to the forces imparted to the agitator from a clothes load. The agitation comprises an auger, having an auger vane that is connected to a base having flexible vanes, by a force responder. Upon the imparting of a force from the clothes to the agitator, the auger translates relative to the base to relieve the force.Type: GrantFiled: January 31, 1997Date of Patent: July 28, 1998Assignee: Whirlpool CorporationInventors: Robert J. Pinkowski, Robert Harlan Nehrig
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Patent number: 5782100Abstract: A refrigerant metering charge board that accurately meters a refrigerant and an associated synthetic compressor oil into a product, preferably a refrigerator, is provided. Metering is accomplished by way of servo motors coupled to ball screws which are in turn connected to hydraulic cylinders. Calibration of the refrigerant, preferably R134a, is maintained using a temperature sensor, a programmable logic controller (PLC) and a density/temperature equation that has been empirically fit to saturation data. The preferred equation is a modified Benedict-Webb-Ruben (MBWR) equation of state. The refrigerant charge amounts are entered into the PLC using either a fixed bar code scanner or a hand-held bar code scanner that reads a bar code on the refrigerator. An operator interface, preferably a touch-screen display is also provided.Type: GrantFiled: March 18, 1997Date of Patent: July 21, 1998Assignee: Whirlpool CorporationInventor: Stephen W. Wilson
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Patent number: 5775112Abstract: A refrigerant metering charge board that accurately meters a refrigerant and an associated synthetic compressor oil into a product, preferably a refrigerator, is provided. Metering is accomplished by way of servo motors coupled to ball screws which are in turn connected to hydraulic cylinders. Calibration of the refrigerant, preferably R134a, is maintained using a temperature sensor, a programmable logic controller (PLC) and a density/temperature equation that has been empirically fit to saturation data. The preferred equation is a modified Benedict-Webb-Ruben (MBWR) equation of state. The refrigerant charge amounts are entered into the PLC using either a fixed bar code scanner or a hand-held bar code scanner that reads a bar code on the refrigerator. An operator interface, preferably a touch-screen display is also provided.Type: GrantFiled: March 18, 1997Date of Patent: July 7, 1998Assignee: Whirlpool CorporationInventor: Stephen W. Wilson
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Patent number: 5765404Abstract: A balancing ring attachment system for an automatic washer including a wash basket having an annular top edge defining a circular opening at a top end thereof. An inwardly projecting annular ledge surface is formed into the wash basket below the top edge. A plurality of slots are provided on the wash basket between the ledge and the top edge. A balancing ring, sized to fit within the inner diameter of the wash basket, rests on the annular ledge and a plurality of resilient hooks outwardly extending from the balancing ring snap fit into the slots provided on the basket thereby securing the ring to the basket. Inset portions are provided in the ring behind each of the outwardly extending tabs while the basket further includes a plurality of bumps formed into the top edge of the wash basket wherein the bumps are formed as pairs along the top edge and define the location of the slots.Type: GrantFiled: October 16, 1996Date of Patent: June 16, 1998Assignee: Whirlpool CorporationInventors: Richard L. Fanson, James W. Titus
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Patent number: 5760493Abstract: The invention is a dishwasher and a control therefore in which the control comprises multiple parallel loads, including a motor. The motor and the other loads are connected to one side of a power source by a motor relay, which is controlled by a processor. All the loads, except the motor, are connected to the other side of a power source by semiconductor switches with each load having a corresponding switch. The motor has an unswitched connection to the other side of the power source. The power to all the loads, including the motor, is controlled by the motor relay. If one of the switches fails in such a way that the circuit for one of the loads is closed, then the load will be shut off when the motor relay is opened to shut off power to the motor. Thus, it is possible to prevent the failed load circuit from operating during the entire wash cycle.Type: GrantFiled: November 18, 1996Date of Patent: June 2, 1998Assignee: Whirlpool CorporationInventors: Alan G. Outcalt, David W. Mundy, Robert H. Ashton, Ryan K. Roth, Theodore F. Meyers
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Patent number: 5756970Abstract: A method for converting standard conventional oven cook times and temperatures to convection oven cook times and temperatures to operate a thermal convection oven is provided. The method has the steps of providing a thermal convection oven having an oven cavity, a heating element, a control panel for inputting cooking parameters, a converter for converting a standard conventional oven cook time and temperature to a convection oven cook time and temperature, the converter being connected to the input control panel, and having controls connected to the converter and also connected to the heating element for operating the thermal convection oven.Type: GrantFiled: May 3, 1995Date of Patent: May 26, 1998Assignee: Whirlpool CorporationInventors: James R. Barger, Edward C. Groeschel, Judy K. Anderson, John R. Bentley, Mark W. Baldwin, Sandra S. Thurlow
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Patent number: 5749388Abstract: The method provides for applying to the solenoid valve, during its movement of closure by the action of a spring, a voltage signal the purpose of which is to brake this closure movement. The circuit comprises a static switch connected between the coil of the solenoid valve and earth, and an intermediate tap between these two components from which a voltage signal is withdrawn and is transformed by a microcontroller into a control signal for the static switch, such as to apply the braking signal to the solenoid valve.Type: GrantFiled: August 27, 1996Date of Patent: May 12, 1998Assignee: Whirlpool Europe B.V.Inventors: Robert S. Elliott, Luca Frasnetti
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Patent number: 5694778Abstract: A refrigerant metering charge board that accurately meters a refrigerant and an associated synthetic compressor oil into a product, preferably a refrigerator, is provided. Metering is accomplished by way of servo motors coupled to ball screws which are in turn connected to hydraulic cylinders. Calibration of the refrigerant, preferably R134a, is maintained using a temperature sensor, a programmable logic controller (PLC) and a density/temperature equation that has been empirically fit to saturation data. The preferred equation is a modified Benedict-Webb-Ruben (MBWR) equation of state. The refrigerant charge amounts are entered into the PLC using either a fixed bar code scanner or a hand-held bar code scanner that reads a bar code on the refrigerator. An operator interface, preferably a touch-screen display is also provided.Type: GrantFiled: July 21, 1995Date of Patent: December 9, 1997Assignee: Whirlpool CorporationInventor: Stephen W. Wilson
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Patent number: 5564808Abstract: An appliance is provided with trim about at least a portion of the periphery of its door as well as a cabinet forming a compartment which the door encloses. The trim on the door provides a flush appearance for the appliance while providing adjustability of the door with respect to the cabinet to satisfy gasket spacing requirements therebetween. The door, therefore, may be adjusted without affecting the flush appearance of the appliance created by the trim of the door.Type: GrantFiled: August 22, 1995Date of Patent: October 15, 1996Assignee: Whirlpool CorporationInventors: Billy P. Gipson, Jr., Thomas C. Hill
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Patent number: 5553936Abstract: An appliance including a compartment liner having a back wall, side walls, and rounded corners connecting the back wall to the side walls includes a shelf mounting system having a linear portion secured to the back wall, a hooked portion forming one edge of the linear portion and a folded leg forming an opposite edge. Spacer members extend between the linear portion and the back wall of the liner. A vertical series of slots to receive shelf brackets is laterally offset to the outside of a vertical series of fastener apertures.Type: GrantFiled: July 26, 1993Date of Patent: September 10, 1996Assignee: Whirlpool CorporationInventors: James F. Dasher, Brian P. Kelley
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Patent number: 5546772Abstract: An automatic washer having an enclosure surrounding an imperforate tub including an access opening and a perforate wash basket rotatably disposed within the tub about a horizontal axis wherein the tub access opening is provided with a flexible tub door for selectively closing the tub access opening. The flexible tub door is slidably supported by the tub for selectively closing the access opening wherein the tub door is positionable in a closed position and an open position. A spring is interconnected with the tub door for biasing the tub door toward an open position. A door catch is provided for engaging the tub door in a fully closed position against the biasing force of the spring and means are provided for selectively actuating the door catch such that the tub door may be selectively engaged in the closed position or released for movement to a fully open position. During the tub door closing operation, the rotatable wash basket is coupled to the tub door.Type: GrantFiled: July 25, 1994Date of Patent: August 20, 1996Assignee: Whirlpool CorporationInventors: Jean-Paul D. Merlin, Brenner M. Sharp, Eric K. Farrington, Vonda K. Johnston
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Patent number: 5515565Abstract: An automatic washing machine having an automatic washing liquid level control system including an ultrasonic apparatus for detecting the height of the clothes load in the washing machine and generating a signal representative of the clothes height, a control panel means for allowing user selection of the agitator speed, and means for generating a signal representative of the desired agitator speed. A control unit is provided including a fuzzy control which performs fuzzy inference on the basis of the signal representative of the clothes height and the signal representative of the agitator speed such that the optimum washing liquid level is achieved. In particular, membership functions according to fuzzy theory are defined for the clothes height and the agitator speed. Rules are defined for the height and agitator speed conditions such as for very high clothes height and low agitator speed, or medium high clothes height and high agitator speed, and so on.Type: GrantFiled: May 20, 1994Date of Patent: May 14, 1996Assignee: Whirlpool CorporationInventors: Beth A. Maddix, Lori S. Miller
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Patent number: 5507053Abstract: A method of washing clothes in an automatic washer having an imperforate wash tub, a perforate wash basket disposed within the tub and rotatable about a vertical axis and a bottom plate disposed within the lower portion of the wash basket and mounted for wobbling motion. The method of operation of the washer includes loading the clothes into the wash basket, adding water and detergent into the tub for forming wash liquid, recirculating the wash liquid over the clothes while driving the bottom plate in a nutating movement. Nutating movement describes the movement of the bottom plate wherein the bottom plate is slowly rotated within the wash basket while being driven in a rapid wobbling motion. In this fashion, the clothes are repeatedly moved under a spray pattern of wash liquid while being jostled and flexed for achieving he desired excellent soil removal.Type: GrantFiled: March 24, 1995Date of Patent: April 16, 1996Assignee: Whirlpool CorporationInventors: Dale E. Mueller, R. Bruce Sherer, Gerald L. Kretchman, Kurt Werner, James W. Titus, Mark C. Celmer, Linda A. Higbee
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Patent number: 5504955Abstract: A method of rinsing in an automatic washer having an imperforate wash tub, a perforate wash basket disposed within the tub and rotatable about a vertical axis and a bottom plate disposed within the lower portion of the wash basket and mounted for wobbling motion. The method of rinsing includes adding rinse liquid into the wash basket and recirculating the rinse liquid over the clothes items while driving the bottom plate in a nutating movement. Nutating movement describes the movement of the bottom plate wherein the bottom plate is slowly rotated within the wash basket while being driven in a rapid wobbling motion. In this fashion, the clothes are repeatedly moved under a spray pattern of rinse liquid while being jostled and flexed for achieving the desired excellent detergent and soil removal during rinse.Type: GrantFiled: March 24, 1995Date of Patent: April 9, 1996Assignee: Whirlpool CorporationInventors: Dale E. Mueller, R. Bruce Sherer, Gerald L. Kretchman, Kurt Werner, James W. Titus, Mark C. Celmer
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Patent number: 5502983Abstract: A condenser coil and a method of manufacturing thereof, with an extended heat transfer surface attached to a serpentine coil such that the assembly can be folded into a U-shape cross section to allow for cross flow of air through and around the condensing coil. In one embodiment, wires are attached to the serpentine coil in a preliminary stage of manufacture across a width of the coil along its length and the coil is wrapped into a U-shape. In a second embodiment, a planar flat plate is attached to a serpentine coil and the coil and flat plate are wrapped into a U-shape.Type: GrantFiled: April 12, 1995Date of Patent: April 2, 1996Assignee: Whirlpool CorporationInventor: James F. Dasher