Patents Represented by Attorney Thomas A. Schwyn
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Patent number: 6058927Abstract: A method for achieving movement of a gas burner of a cooking hob relative to a cavity in which said burner rests when not in use and from which it partially emerges for its activation, by which following a command for activating the burner a magnetic force is generated on the heating element which causes it to move and partially emerge from the cavity, said force ceasing when a burner deactivation command is given, with its consequent return to its rest position within the corresponding cavity. The method is implemented by a device comprising fixed conductor means arranged to cooperate magnetically with magnetically sensitive means associated with the movable burner.Type: GrantFiled: December 13, 1995Date of Patent: May 9, 2000Assignee: Whirlpool Europe B.V.Inventors: Marco Maritan, Cesare Antonio Bocchiola
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Patent number: 5992954Abstract: A dishwashing machine with a supporting structure is provided and is constructed from horizontal and vertical frame members. The supporting structure forms at least a front and a rear supporting frame which support a rinsing container. The parts and assembly costs for the dishwashing machine can be considerably reduced in that the supporting frames are assembled from individual horizontal frame members and vertical frame members, the respectively abutting areas of a horizontal and a vertical frame member being provided with locking and counter-locking elements which are adapted to one another. The rinsing container is provided with integral grooves for the positive positioning of the supporting structure on the rinsing container.Type: GrantFiled: August 21, 1998Date of Patent: November 30, 1999Assignee: Whirlpool CorporationInventor: Ronald Becker
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Patent number: 5967634Abstract: A base for a built-in oven wherein the oven is configured to be received into a cabinet cavity and the combined height of the base and oven equals the height of the cabinet cavity. The base comprises a first elongated support runner and a second elongated support runner. The support runners are positioned in a substantially parallel orientation with respect to each. A cross brace member extends between the support runners and has a first end connected to the first support runner and has a second end connected to the second support runner. A face plate assembly is attached to the front ends of the support runners. The face plate assembly includes a rigid panel connected to the front end of the first and second support runners, a frame disposed about the periphery of the rigid panel, and a thin panel secured by the frame adjacent the rigid panel.Type: GrantFiled: July 14, 1997Date of Patent: October 19, 1999Assignee: Whirlpool CorporationInventor: Isabel L Baca
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Patent number: 5961311Abstract: A gas burner system including a burner body having a flange providing an annular surface. A removable cap is disposed above the burner body and contacts the annular surface for forming an annular interface with the burner body for closing the burner body. A plurality of ports are provided along the annular interface between the burner body and the cap. A first ignitor is disposed adjacent the annular interface between the burner body and cap. A second ignitor is also disposed adjacent the annular interface between the burned body and cap. Electronic means energize the first and second ignitors for generating sparks to ignite the gas burner. The energizing means include means for sensing the presence of flame at both the first and second ignitors such that during burner operation, if no flame is sensed at both the first and second ignitors, the ignitors are energized for generating sparks.Type: GrantFiled: November 24, 1997Date of Patent: October 5, 1999Assignee: Whirlpool CorporationInventor: Roger R. Moore, Jr.
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Patent number: 5910265Abstract: The invention is an electric range with a reversible electrical element. When the electric element is positioned in its non-reversed position, it can be used as a normal electric element for traditional cooking. When the reversible element is positioned in the reversed position, the electric element can be used as a slow cooker.Type: GrantFiled: January 21, 1997Date of Patent: June 8, 1999Assignee: Whirlpool CorporationInventors: Richard L. Baker, Bernard J. Brotzki
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Patent number: 5881906Abstract: A silverware basket for use in a dishwashing machine, the basket having a bottom wall disposed along the basket bottom. The bottom wall being an offset grid type structure formed by a plurality of parallel longitudinal ribs extending lengthwise across the basket bottom in a first plane and a plurality of parallel, transverse ribs extending across the width of the basket bottom in second plane spaced a predetermined distance below and parallel to the first plane. A plurality of connecting ribs connect the longitudinal ribs and the transverse ribs at the projected intersection points between the longitudinal ribs and the transverse ribs. A plurality of projections extend from the transverse ribs downwardly away from the longitudinal ribs for providing drip off tips for the bottom wall. The plurality of projections align with the plurality of connecting ribs and each of the projections comprise a generally inverted frustoconical body having a fully radiused bottom tip.Type: GrantFiled: December 5, 1997Date of Patent: March 16, 1999Assignee: Whirlpool CorporationInventors: Pamela Sue Rogers, Ralph E. Christman
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Patent number: 5881710Abstract: The invention is an oven door construction and assembly in which the oven door construction and its part count are greatly reduced and simplified as is the method of assembly in the door. The door is assembled by placing interior door elements on an inner liner and using the hinges of the door to compressively mount the interior door elements to the liner to thereby eliminate a great number of fasteners typically used in this type of door construction.Type: GrantFiled: May 21, 1998Date of Patent: March 16, 1999Assignee: Whirlpool CorporationInventors: Kenneth L. Davis, Keith Ray
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Patent number: 5878602Abstract: An automatic washer having a wash tub in which a rotatable wash basket is disposed. A wash plate is rotatably mounted in the wash basket and is capable of independently rotating or co-rotating with respect to the wash basket. The wash plate has at least two ripples integrally formed in its surface whereby upon the rotation of the wash plate, any clothing in contact with the ripple will be directed vertically to impart mechanical energy to the clothing instead of carrying the clothing with the wash plate as it is rotated.Type: GrantFiled: September 23, 1997Date of Patent: March 9, 1999Assignee: Whirlpool CorporationInventors: Mark B. Kovich, Tracy M. Smart, Earl E. Meister, III, Katrien A. Saveyn
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Patent number: 5852942Abstract: The invention is an appliance, such as an automatic washer, having a tub in which a wash basket is mounted. The tub comprises an upper and a lower tub member, which are connected by an interference connection. The interference connection is formed by one of the tub members being provided with a peripheral channel and the other tub member being provided with a flange adapted to be received within the channel. Multiple protrusions can extend from one or both of the flange or channel side walls to abut and deflect the flange to form the interference connection.Type: GrantFiled: September 4, 1996Date of Patent: December 29, 1998Assignee: Whirlpool CorporationInventors: Brenner M. Sharp, Jean-Paul D. Merlin
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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: 5841112Abstract: A cooktop service diagnostics method which is effected by a programmable controller system, wherein the programmable controller system: a) executes a routine upon receipt of a first specified pattern of input signals to the programmable controller: b) issues an activation audible signal to indicate receipt of the specified pattern of input signals; c) issues an activation visual signal to indicate receipt of the specified pattern of input signals; d) tests cooktop heating element drivers for malfunction conditions; e) tests cooktop controller input drivers for malfunction conditions; f) issues a malfunction visual signal to indicate the existence and type of any malfunction condition; g) terminates the routine upon the receipt of a second specified pattern of input signals to the programmable controller; h) issues a deactivation visual signal to indicate termination of the routine; and i) issues a deactivation audible signal to indicate termination of the routine.Type: GrantFiled: April 3, 1997Date of Patent: November 24, 1998Assignee: Whirlpool CorporationInventors: Timothy L. Brooks, Thomas Lee Aukerman
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Patent number: 5836180Abstract: An automatic washer with a removable dispenser cup for dispensing wash additives. The cup is removably mounted for use as a scoop or measuring cup. When mounted, the cup aligns with a water inlet to ensure a complete flushing of the cup to prevent wash additive buildup.Type: GrantFiled: April 4, 1997Date of Patent: November 17, 1998Assignee: Whirlpool CorporationInventors: Irene M. Herman-Latack, Nyik Siong Wong, Gregory J. McPherson
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Patent number: 5813320Abstract: Solenoid valves for controlling the gas flow to burners are controlled by an electronic microprocessor card by means of pulse-width modulated signals. The electronic card can receive signals from a timer to be set by the user, and from means by which the user selects the heat output of the burners. The first of said means to be operated by the user after setting the time makes the relative burner dependent on the timer. When the two data (time and heat output) have been set, the card extinguishes the flame of the dependent burner when the set time has expired.Type: GrantFiled: April 14, 1997Date of Patent: September 29, 1998Assignee: Whirlpool CorporationInventors: Luca Frasnetti, Gianpiero Santacatterina, Alessandro Distaso
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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: 5796081Abstract: A microwave oven comprising a number of IR-sensors elements for obtaining temperature information from discrete sensing areas within the cooking zone of the oven and for generating a two-dimensional temperature image of the cooking zone. Based on said temperature image necessary load parameters may be calculated for controlling automatic heating procedures in the oven, thereby facilitating operation of the oven and securing a good cooking result.Type: GrantFiled: December 20, 1996Date of Patent: August 18, 1998Assignee: Whirlpool CorporationInventors: Hakan Carlsson, Mats Idebro
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Patent number: 5791167Abstract: A washplate deflector for an automatic washer having a wash basket and a moveable washplate positioned within the basket. The deflector is mounted to the periphery of the washplate and abuts the wash basket, preventing clothing disposed in the wash basket from being caught between the washplate and the wash basket.Type: GrantFiled: May 16, 1997Date of Patent: August 11, 1998Assignee: Whirlpool CorporationInventors: Vicki Lyn Wyatt, Dale E. Mueller, Gerald L. Kretchman, James W. Titus
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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: 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: D399390Type: GrantFiled: July 10, 1995Date of Patent: October 13, 1998Assignee: Whirlpool CorporationInventor: Mark W. Baldwin