Patents Assigned to Donnelly Technology, Inc.
  • Patent number: 5867111
    Abstract: A touch control system that is responsive to a user input selection includes an electrically non-conducting substrate, such as glass ceramic, and at least one capacitive-responsive touch pad on the substrate. A source signal having a primary frequency that is greater than 150 kHz, and preferably in the range of between 150 kHz and 500 kHz, is applied to one portion of the touch pad. The touch pad couples the electrical signal to another portion of the touch pad in order to develop a detection signal, which is decoded in order to determine the presence of the capacitance of a user. The decoder preferably includes a peak detector composed of a low gain circuit in order to avoid distortion of the detection signal. Greatly improved performance in the presence of liquids, such as water, on the touch pad is provided. This is especially useful when the touch pad is applied to a horizontal surface, such as a cook top, upon which liquid spills may occur.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: February 2, 1999
    Assignee: Donnelly Technology, Inc.
    Inventors: David W. Caldwell, Nicholas W. Medendorp
  • Patent number: 5738880
    Abstract: An apparatus for making an encapsulated shelf assembly includes a mold defining a mold cavity. A shelf panel and a shelf support bracket extend partially into the mold cavity. The shelf support bracket is spaced from the sides of the mold by the head of a post on one side and a nut on the other side. The post head and nut are partially encapsulated by a moldable material injected into the mold cavity. The nut and post head are removable from the mold cavity with the encapsulated shelf assembly.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: April 14, 1998
    Assignee: Donnelly Technology, Inc.
    Inventors: Edmund J. Kane, Robert S. Herrmann, Craig S. Bienick, Gregory T. Wolters
  • Patent number: 5735589
    Abstract: A shelf assembly for a refrigerator compartment such as a refrigerator for food products includes a shelf member slidably supported for extension and retraction on a shelf support. The shelf member includes side members which are preferably molded as a rim on an article support surface from an ethylene-polypropylene copolymer and include slide surfaces engaging spaced, generally horizontal and parallel shelf support surfaces preferably formed by L-shaped brackets on the shelf support. A guide member depends from at least one, and preferably both, of the side members to guide the sliding movement. A stop on the guide member limits travel by engaging a limit surface on the shelf support. The guide member and stop may be molded integrally with the side members to define a molded slide channel or formed by a rigid insert embedded in the rim during molding.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: April 7, 1998
    Assignee: Donnelly Technology, Inc.
    Inventors: Robert S. Herrmann, Edmund J. Kane
  • Patent number: 5705113
    Abstract: An encapsulated shelf assembly has a shelf support supporting a panel. The panel has an edge and a one piece member encapsulates the panel edge and a substantial majority of the shelf support. The encapsulated shelf assembly may be formed in a mold apparatus which defines a mold cavity and uses a spacing plug to position the shelf support in a mold cavity of the mold apparatus in a location spaced from the sides of the mold cavity.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: January 6, 1998
    Assignee: Donnelly Technology, Inc.
    Inventors: Edmund J. Kane, Robert S. Herrmann, Craig S. Blenick, Gregory T. Wolters
  • Patent number: 5660777
    Abstract: A shelf assembly for a refrigerator compartment such as a refrigerator for food products includes a shelf member slidably supported for extension and retraction on a shelf support. The shelf member includes side members which are preferably molded as a rim on an article support surface from an ethylene-polypropylene copolymer and include slide surfaces engaging spaced, generally horizontal and parallel shelf support surfaces preferably formed by L-shaped brackets on the shelf support. A guide member depends from at least one, and preferably both, of the side members to guide the sliding movement. A stop on the guide member limits travel by engaging a limit surface on the shelf support. The guide member and stop may be molded integrally with the side members to define a molded slide channel or formed by a rigid insert embedded in the rim during molding.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: August 26, 1997
    Assignee: Donnelly Technology, Inc.
    Inventors: Robert S. Herrmann, Edmund J. Kane
  • Patent number: 5572205
    Abstract: A touch control system that is responsive to a user input selection includes an electrically non-conducting substrate, such as glass ceramic, and at least one capacitive-responsive touch pad on the substrate. A source signal having a primary frequency that is greater than 150 kHz, and preferably in the range of between 150 kHz and 500 kHz, is applied to one portion of the touch pad. The touch pad couples the electrical signal to another portion of the touch pad in order to develop a detection signal, which is decoded in order to determine the presence of the capacitance of a user. The decoder preferably includes a peak detector composed of a low gain circuit in order to avoid distortion of the detection signal. Greatly improved performance in the presence of liquids, such as water, on the touch pad is provided. This is especially useful when the touch pad is applied to a horizontal surface, such as a cook top, upon which liquid spills may occur.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: November 5, 1996
    Assignee: Donnelly Technology, Inc.
    Inventors: David W. Caldwell, Nicholas W. Medendorp
  • Patent number: 5564809
    Abstract: An encapsulated shelf assembly has a shelf support supporting a panel. The panel has an edge and a one piece member encapsulates the panel edge and a substantial majority of the shelf support. The encapsulated shelf assembly may be formed in a mold apparatus which defines a mold cavity and uses a spacing plug to position the shelf support in a mold cavity of the mold apparatus in a location spaced from the sides of the mold cavity.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: October 15, 1996
    Assignee: Donnelly Technology, Inc.
    Inventors: Edmund J. Kane, Robert S. Herrmann, Craig S. Bienick, Gregory T. Wolters
  • Patent number: 5540493
    Abstract: An encapsulated shelf with pre-encapsulated bracket, and preferably adapted for use in refrigeration and/or freezer compartments, includes a glass or other panel supported by a support such as a bracket having a cover encapsulating a substantial majority thereof and a flange extending into and interconnecting with a rim formed separately from the panel and around an edge of the panel. The rim and cover preferably engage and cooperate with one another. A slide rail may be integrally formed in one piece with the encapsulating cover. The support includes holes extending through the support for mechanical interconnection with the rim and cover. The support may also be provided with a mounting portion adapted to couple with a refrigerator wall or the like at a variety of vertical locations. The rim may further define a spill dam to contain spills on the panel surface, while additional brackets or stiffeners may be included for extra wide shelves.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: July 30, 1996
    Assignees: Donnelly Technology Inc., Gemtron Corporation
    Inventors: Edmund J. Kane, Robert S. Herrmann, Craig S. Bienick, Gregory T. Wolters
  • Patent number: 5524981
    Abstract: A molded refrigerator shelf useful for containment of spills on the shelf includes a shelf member with a rim molded around the perimeter edge of the shelf member to form a liquid tight seal between the rim and the shelf member. The molded rim projects above the top surface of the shelf member to form a liquid dam for containing spills to the shelf member. The shelf is cantilevered upon support brackets from the rear wall of a refrigerator. The support brackets are adapted to support the shelf at a plurality of vertical positions. The support brackets are integrally molded with the molded rim, or separately formed and attached to the rim during molding. Slide tracks are optionally provided on the support brackets for slidably receiving and supporting a storage bin or drawer beneath the shelf. Also, a drain is optionally provided to drain a spill from the shelf.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: June 11, 1996
    Assignee: Donnelly Technology, Inc.
    Inventors: Robert S. Herrmann, Edmund J. Kane, Donald C. Gilbert
  • Patent number: 5454638
    Abstract: Adjustable refrigerator shelving includes a shelf rail for supporting a partial width shelf within a refrigerated compartment on first and second, spaced shelf tracks vertically oriented in the compartment. The tracks releasably engage with a number of support brackets for cantilevered support of one or more shelves at a plurality of vertically spaced locations. The shelf rail is adapted for releasable engagement with the shelf tracks and is interposed between the partial shelf and the shelf tracks for horizontally adjustable support of the partial shelf. The shelf rail includes rearwardly projecting hooks at each of two opposing ends for releasable engagement with the shelf tracks. Locking tabs may be included on the hooks to retain the shelf rail on the tracks, while a rub strip is provided between the partial shelf and the shelf rail, along a top edge of the shelf rail.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: October 3, 1995
    Assignee: Donnelly Technology, Inc.
    Inventors: Kevin C. Bird, Robert S. Herrmann
  • Patent number: 5429433
    Abstract: A molded refrigerator shelf useful for containment of spills on the shelf includes a planar shelf member with a rim molded around the perimeter edge of the shelf member to form a liquid tight seal between the rim and the shelf member. The molded rim projects above the top surface of the shelf member to form a liquid dam for containing spills to the shelf member. In one form, the shelf is slideably mounted to allow horizontal extension of the shelf and convenient access to the rear portion of the shelf using slide guides molded into the rim along each side of the shelf. The shelf is cantilevered upon support brackets from the rear wall of a refrigerator to allow air flow around the shelf sides. The support brackets are adapted to support the shelf at a plurality of vertical positions.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: July 4, 1995
    Assignee: Donnelly Technology, Inc.
    Inventors: Kevin C. Bird, Donald C. Gilbert, Robert S. Herrmann, Gregory T. Wolters, Cleon C. Morgan
  • Patent number: 5406894
    Abstract: A shelf assembly has a shelf support bracket and a shelf panel supported by the bracket. A fastening stud projects from the shelf panel into a figure eight shaped aperture in the support bracket. The fastening stud slides relative to the fastening aperture and has a resilient, compressible bushing for latching engagement with the fastening aperture. In one embodiment, the rear edge of the shelf panel is positioned in an open sided channel member of the support bracket. In another embodiment, a spring clip is substituted for the fastening stud and projects from the shelf panel into a fastening aperture in the support bracket, the fastening aperture having a lip for latching engagement with the spring clip.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: April 18, 1995
    Assignee: Donnelly Technology, Inc.
    Inventors: Robert S. Herrmann, Edmund J. Kane, Gregory T. Wolters, Donald C. Gilbert