Patents Represented by Attorney Richard L. Ward
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Patent number: 5205419Abstract: A dishwasher having a unique racking system mounted therein is provided. The dish racking system includes a lower rack having a side wall extending substantially higher than the front, rear and other side walls to define a protective barrier between a side panel of the washing chamber and various large articles placed adjacent the side wall for washing. An upper rack is supported above the lower rack. The upper rack has a bottom support means including at least one upwardly stepped portion adjacent the high side wall of the lower rack. A pivotal shelf is located generally intermediate the bottom support wall and the upper edge of the high side wall of the lower rack. A pivotal shelf can be similarly provided in the upper rack.Type: GrantFiled: July 29, 1992Date of Patent: April 27, 1993Assignee: Maytag CorporationInventor: Dennis L. Purtilo
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Patent number: 5158185Abstract: A dishwasher having a unique racking system mounted therein is provided. The dish racking system includes a lower rack having a side wall extending substantially higher than the front, rear and other side walls to define a protective barrier between a side panel of the washing chamber and various large articles placed adjacent the side wall for washing. An upper rack is supported above the lower rack. The upper rack has a bottom support means including at least one upwardly stepped portion adjacent the high side wall of the lower rack. A pivotal shelf is located generally intermediate the bottom support wall and the upper edge of the high side wall of the lower rack. A pivotal shelf can be similarly provided in the upper rack. Attachable to either the lower or upper rack is a divider means. The divider means includes means for pivotally mounting a pair of the divider means on the bottom wall of either the upper or lower racks.Type: GrantFiled: September 27, 1991Date of Patent: October 27, 1992Assignee: Maytag CorporationInventors: Daryl A. Michael, Dennis L. Purtilo
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Patent number: 5143513Abstract: The present invention is directed to a two chamber dishwasher pump wherein the pumping noise associated with recirculation is substantially lowered by reducing the intake area to the recirculation impeller thereby interrupting air pockets formed in the fluid while recirculating. In addition the noise associated with fluid drainage is minimized by an aperture between the drain chamber inlet and the drain outlet which allows fluid to flow from the inlet to the outlet thereby interrupting air pockets in the drain line which create the noise. In addition, fluid flows through the aperture in an opposite direction to that described above in order to relieve excessive pressure in the drain line during recirculation.Type: GrantFiled: November 14, 1990Date of Patent: September 1, 1992Assignee: Maytag CorporationInventors: David I. Ellingson, Herbert E. Scott, James E. Sparks
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Patent number: 5118254Abstract: A pump mount is provided for a dishwasher having a tub with an opening in the sump defined by a radially inwardly directed annular flange. A pump housing includes a plurality of ramp members spaced around its periphery and a seal is located between the pump housing and the flange for retaining washing fluid in the tub when the pump housing is assembled to the tub. A locking member is engageable with the pump housing ramp members for assembling the pump housing to the tub. In the preferred embodiment a locking member is rotatable relative to the pump for effecting axial movement of the pump housing relative to the tube to compress the seal and form a fluid tight joint.Type: GrantFiled: May 31, 1991Date of Patent: June 2, 1992Assignee: Maytag CorporationInventors: David I. Ellingson, Donald E. Erickson, Lawrence J. Jordan, Lawrence L. Quayle
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Patent number: 5097606Abstract: A microprocessor controlled clothes dryer wherein the posture of a switch in the lint filter system is monitored and a signal to CHECK FILTER is displayed if the switch posture has not changed. The switched is a reed switch mounted stationary on the lint filter assembly and a magnet operator is attached to the removable filter screen. Movement of the filter screen into and out of filtering position in the lint filter assembly of the exhaust duct changes the posture of the magnet operated reed switch. Change of posture of the switch through its cycle impresses a change of voltage on the microprocessor. The microprocessor effects control over the CHECK FILTER signal that is visually illuminated on a VFD tube; such that, if the microprocessor sees the cycling of the switch the CHECK FILTER signal is extinguished.Type: GrantFiled: August 23, 1990Date of Patent: March 24, 1992Assignee: Maytag CorporationInventors: Gregory K. Harmelink, Pamela M. Kuecker, Michael D. Lafrenz, J. Christopher Millet
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Patent number: 5038587Abstract: A control system is provided for a fabric washing machine including a controller for controlling the machine through a predetermined cycle of operations and having a first state at which the cycle may be initiated and a second state at the end of the cycle. A lid actuated switch is in circuit with a power supply and the controller and is operable between first and second conductive postures by movement of the lid. First circuitry is connected to the first conductive posture of the switch for energizing the controller in the first state to control the machine through the cycle and terminate operation at the second controller state at the end of the cycle. Second circuitry is connected to the second conductive posture of the switch and is operable with the controller in the second state for initiating modification of the controller to the first state to condition the controller for initiation of a new cycle of operations.Type: GrantFiled: July 27, 1990Date of Patent: August 13, 1991Assignee: Maytag CorporationInventor: Gregory K. Harmelink
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Patent number: 5001910Abstract: A control system is provided for a fabric washing machine including first and second lid actuated switches and washing fluid level detecting apparatus. A lockout device is in circuit with a conductive path of the second switch so that, if upon operation of the lid, the first switch is failed, a circuit is completed through the lockout device and level detecting apparatus to prevent reenergization of the fabric washing machine. Switch mounting apparatus is provided which is adjustably movable for providing concurrent adjustment of at least the first and second switches with respect to a lid actuated switch actuator mechanism.Type: GrantFiled: March 16, 1990Date of Patent: March 26, 1991Assignee: Maytag CorporationInventors: Gregory K. Harmelink, John C. Mellinger
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Patent number: 4984670Abstract: A compact induction coin drop assembly is provided which includes a coin guide system for guiding horizontally inserted coins rearwardly and downwardly from a coin receiving slot through a predetermined coin test area between the rear of the face plate and rearwardly spaced induction coils associated with coin sensing apparatus. The coin test area includes a coin guide adjacent the rear of the face plate for guiding an inserted coin along a path close to the rear of the face plate. After traversing the coin test area, coins are directed to either a storage receptacle or to a coin return slot in the face plate.Type: GrantFiled: February 1, 1989Date of Patent: January 15, 1991Assignee: Maytag CorporationInventor: Scott A. Merkle
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Patent number: 4974750Abstract: An integrated single dispenser assembly is disclosed for dispensing detergent and additive into the washing chamber of an appliance. A two-piece cover assembly is provided for covering at least one cavity of the detergent dispenser. The cover assembly is movable to effect dispensing of both detergent and additive by an actuator member isolated from the dispenser assembly but operably interconnected therewith. A labyrinth liquid seal arrangement is provided between the cover assembly and the detergent dispenser cavity.Type: GrantFiled: October 10, 1989Date of Patent: December 4, 1990Assignee: Maytag CorporationInventor: Rodney M. Welch
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Patent number: 4866955Abstract: A microcontroller-based control circuit is provided for an appliance. The appliance includes an access door and an access door actuated switch operated between open and closed postures. The microcontroller monitors the operating condition of the access door actuated switch. If the access door actuated switch has not been cycled between an open and closed posture since the completion of a cycle of operations, a new cycle will not be allowed to start.Type: GrantFiled: July 21, 1988Date of Patent: September 19, 1989Assignee: Maytag CorporationInventors: Jeffrey L. Blair, Paul S. Decature, Charles L. Jackson
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Patent number: 4854054Abstract: A fabric dryer includes a front bulkhead assembly providing a pair of airflow outlets from the drying chamber. A first airflow outlet is associated with the stationary front bulkhead adjacent the access opening of the fabric dryer. A second airflow outlet is integral with the lint filter and is located within an airflow space formed between the access opening and a projecting portion of the access door. The projecting portion of the access door generally overlies the second airflow outlet to protect the outlet from blockage by fabrics being tumbled.Type: GrantFiled: June 27, 1988Date of Patent: August 8, 1989Assignee: Maytag CorporationInventor: Thomas M. Johnson
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Patent number: 4795102Abstract: A bidirectional dishwasher pump includes a particle cutter adjacent the ingress to the drain pump cavity. The particle cutter is associated with the pump drive shaft and includes a primary edge portion and a secondary edge portion. Rotation in a first direction effects cutting of particles by the primary edge portion and rotation in a second direction effects relatively reduced particle cutting and radial outward movement of particles by the secondary edge portion.Type: GrantFiled: December 4, 1987Date of Patent: January 3, 1989Assignee: Maytag CorporationInventors: Lawrence J. Jordan, Charles W. Pille
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Patent number: 4787818Abstract: A centrifugal blower assembly is provided which includes an improved blower housing construction wherein a pair of end panels each define a plurality of apertures disposed along a line corresponding to the profile of a blower spiral. An elongated scroll member includes a plurality of tab members spaced along each longitudinal side and extending through the apertures in the pair of end panels for conforming the scroll member to the blower spiral profile. At least a portion of the plurality of tab members are deformed relative to the apertures to maintain a connection between the scroll member and the end panels to form the blower housing. The assembly also provides isolated drive motor and air intake compartments, combined motor mount and support means for blower housing, and access for removing the drive motor from its compartment without removal of any side walls.Type: GrantFiled: July 27, 1987Date of Patent: November 29, 1988Assignee: Jenn Industries, Inc.Inventors: Michael E. Bales, Michael McKinney, Craig A. Sawyer
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Patent number: 4770091Abstract: A rotisserie accessory is provided for use with a cooking appliance having an airflow grill. Locking apparatus prevents rotational operation of a spit portion when the rotisserie accessory is improperly positioned on the cooking appliance.Type: GrantFiled: February 16, 1988Date of Patent: September 13, 1988Assignee: Maytag CorporationInventor: William T. Vaughn
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Patent number: 4750470Abstract: A heater system is provided for use with a downdraft range. The heater is constructed and disposed within a burner pan associated with the range to produce a non-uniform heat output relative to the front-to-rear center line of the burner pan. The greater heat output is produced adjacent a side wall of the burner pan which is substantially opposite the air inlet of the proximity ventilation system.Type: GrantFiled: March 5, 1987Date of Patent: June 14, 1988Assignee: The Maytag CompanyInventors: Stanley H. Beach, Roger F. Doty, George C. Hanson, Wallace E. Schmidt
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Patent number: 4736729Abstract: A gas downdraft range is provided with an airflow system for inducing and maintaining cooling airflow, combustion airflow and exhaust airflow. A housing defines an upwardly facing burner box and a cover overlies the housing with a downwardly formed burner pan disposed within the burner box. The bottom wall of the burner pan is spaced above the bottom wall of the burner box to form an air space therebetween. The burner box has cooling air inlets and cooling air outlets in communication with the air space to define a cooling airflow path. A burner is operably disposed in the burner pan and a grill grate overlies the burner pan providing combustion air inlet and outlet ports to and from the burner pan for defining a combustion airflow path. A plenum enclosure is connected to an exhaust air intake juxtaposed the grill grate and exhausts to atmosphere defining an exhaust airflow path. A blower concurrently induces and maintains each of the airflows.Type: GrantFiled: March 5, 1987Date of Patent: April 12, 1988Assignee: The Maytag CompanyInventor: Stanley H. Beach
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Patent number: D298873Type: GrantFiled: January 15, 1986Date of Patent: December 6, 1988Assignee: The Maytag CompanyInventors: Donald E. Erickson, James D. Wilson
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Patent number: D300969Type: GrantFiled: November 13, 1987Date of Patent: May 2, 1989Assignee: Maytag CorporationInventor: Richard P. Bergeson
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Patent number: D303604Type: GrantFiled: August 12, 1987Date of Patent: September 26, 1989Assignee: Maytag CorporationInventors: Stanley H. Beach, Wallace E. Schmidt
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Patent number: D303605Type: GrantFiled: August 12, 1987Date of Patent: September 26, 1989Assignee: Maytag CorporationInventors: Gregg M. Davis, Paul P. Kolada, Rainer B. Teufel