Patents by Inventor William G. Fairchild

William G. Fairchild 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).

  • Air assist device for bed linen changing
    Patent number: 6795989
    Abstract: An assist device for facilitating bedding changes on a mattress includes an inflatable pneumatic bladder adapted to be positioned under a mattress. The bladder has a length and width somewhat less than those of the mattress. The pneumatic bladder is enclosed and is provided with an opening which is in fluid flow communication with a source of compressed gas, preferably a compressor. A switch is provided for controllably activating flow of compressed gas from the source into the bladder. The bladder may be configured with recessed sections so that the volume of air or other gas required to inflate said bladder is minimized. An opening to enable escape of compressed gas from the bladder may be provided in the compressor or may be valve extending through a surface of the bladder.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: September 28, 2004
    Inventors: William G. Fairchild, Virginia L. Fairchild
  • Air assist device for bed linen changing
    Publication number: 20040133978
    Abstract: An assist device for facilitating bedding changes on a mattress includes an inflatable pneumatic bladder adapted to be positioned under a mattress. The bladder has a length and width somewhat less than those of the mattress. The pneumatic bladder is enclosed and is provided with an opening which is in fluid flow communication with a source of compressed gas, preferably a compressor. A switch is provided for controllably activating flow of compressed gas from the source into the bladder. The bladder may be configured with recessed sections so that the volume of air or other gas required to inflate said bladder is minimized. An opening to enable escape of compressed gas from the bladder may be provided in the compressor or may be valve extending through a surface of the bladder.
    Type: Application
    Filed: January 14, 2003
    Publication date: July 15, 2004
    Inventors: William G. Fairchild, Virginia L. Fairchild
  • System for controlling a strip chart recorder
    Patent number: 4468678
    Abstract: A system for selectively removing a recording means from a strip chart scale to avoid marking undesired data thereon.
    Type: Grant
    Filed: December 3, 1982
    Date of Patent: August 28, 1984
    Assignee: American Home Products Corporation
    Inventors: Patrick G. Phillipps, William G. Fairchild
  • System and method for controlling a strip chart recorder
    Patent number: 4396922
    Abstract: A system and method for selectively removing a recording means from a strip chart scale to avoid marking undesired data thereon.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: August 2, 1983
    Assignee: American Home Products Corporation
    Inventors: Patrick G. Phillipps, William G. Fairchild