Patents by Inventor Donald C. Lewis

Donald C. Lewis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080183540
    Abstract: A method and apparatus are provided for matching resources and co-resources within a system.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Inventor: Donald C. Lewis
  • Publication number: 20030208923
    Abstract: A dehumidification dryer configured and operated so at to achieve higher drying temperatures than traditionally obtainable with dehumidification driers. The invention takes advantage of refrigerants not previously used in the field of dehumidification drying to achieve temperatures in the range of 180-225° F. that previously were found only in open hot air kilns, open commercial clothes driers, and other apparatus of high throughput. In order to make optimum use of high-temperature refrigerants, the invention uses variable control rates for drying the air that is used as the drying medium, and restructures the deployment of the components of the refrigeration circuit that participates in the heat and humidity exchange central to the operation of the drier.
    Type: Application
    Filed: March 28, 2003
    Publication date: November 13, 2003
    Inventor: Donald C. Lewis
  • Patent number: 5920133
    Abstract: Improved flexures and flexure assemblies are taught for use in thermal regenerative machines. In one aspect, the flexure is a flat spring formed from a flat metal sheet having kerfs forming axially movable arms across them, and at least one aperture communicating with and extending from an end portion of the kerf. One variation includes a flexure bearing assembly having such a flexure. In accordance with another aspect, a thermodynamic machine has a housing carried stator and a piston and linear moving element carried by a flexure bearing assembly. In accordance with yet another aspect, a piston and displacer assembly are configured to be movably supported together within a chamber in a housing of a thermal regenerative machine via a flexure assembly.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: July 6, 1999
    Assignee: Stirling Technology Company
    Inventors: Laurence B. Penswick, Donald C. Lewis, Ronald W. Olan, Brad Ross, Leon Montgomery
  • Patent number: 5275365
    Abstract: A collapsible table height cart is disclosed for elevating a table top mounted case enclosed machine, such as a voting station for deployment of a direct recording electronic voting machine. The erection of the case on the cart is assisted by a series of pivoting motions over a cart fulcrum for ease of voting station erection by polling place personnel having less than average strength. The collapsed cart is flush to one side of the case. The case and collapsed cart transport on a supporting tracking wheel pair protruding from a lower edge of the case at the collapsed cart. Stowing occurs with the case containing the polling station standing on end in a substantially vertical position. Support of the polling station in the vertical stowed position occurs from both the tracking wheel pair and paired arcuate members extending over the bottom edge of the cart.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: January 4, 1994
    Assignee: Unilect Corporation
    Inventors: John A. Gerbel, Donald C. Lewis
  • Patent number: 4733924
    Abstract: A combination packing case and desk includes a shelf unit adapted to secure a plurality of articles during shipping. A hollow seating member having an open bottom is adapted to be received about the upper portion of the shelf unit to protect the articles therein. An outer casing is provided with an open bottom and is adapted to be received about the shelf unit-seating member assembly in fully enclosed fashion. At the shipping destination, the outer casing comprises a base upon which the shelf unit is supported to form a desk. The seating member may be used in conjunction with the desk for tasks involving the articles shipped in and supported on the shelf unit.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: March 29, 1988
    Inventor: Donald C. Lewis
  • Patent number: 4250629
    Abstract: A lumber conditioning kiln comprising an enclosure defining a closed chamber for receiving a stack of lumber so positioned as to provide space at the top and at the ends, a dehumidifier in said chamber containing an evaporator, said dehumidifier defining a flow path through the evaporator and a bypass passage around the evaporator, a blower for inducing air flow into the flow path of the dehumidifier for dehumidifying air and discharging dry air therefrom, fans for effecting a circulation of air within the chamber in a direction such that dry air from the dehumidifier is conducted across the top of the stack to the far end and from there reversely through the stack to the one end where the moisture-laden air from the stack is induced into the flow path of the dehumidifier and wherein there are dampers for reducing the air flow over the evaporator and increasing the air flow through the bypass.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: February 17, 1981
    Inventor: Donald C. Lewis
  • Patent number: RE31633
    Abstract: A lumber conditioning kiln comprising an enclosure defining a closed chamber for receiving a stack of lumber so positioned as to provide space at the top and at the ends, a dehumidifier in said chamber containing an evaporator, said dehumidifier defining a flow path through the evaporator and a bypass passage around the evaporator, a blower for inducing air flow into the flow path of the dehumidifier for dehumidifying air and discharging dry air therefrom, fans for effecting a circulation of air within the chamber in a direction such that dry air from the dehumidifier is conducted across the top of the stack to the far end and from there reversely through the stack to the one end where the moisture-laden air from the stack is induced into the flow path of the dehumidifier and wherein there are dampers for reducing the air flow over the evaporator and increasing the air flow through the bypass.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: July 24, 1984
    Inventor: Donald C. Lewis