Patents by Inventor Ralph Andrew Ferris

Ralph Andrew Ferris 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).

  • Patent number: 6662664
    Abstract: An electronic pressure sensing device includes a pressure sensing/transmitter module including at least one pressure sensor having a pair of opposed sensing elements, and a pair of inlet port on the module to supply fluid under pressure to the sensing elements. A plurality of adapters, each having a pair of outlet ports for connection to the inlet ports on the module, whereby each adapter can be selectively coupled to the module. Each adapter is capable of being connected to a different configuration of pressurized fluid supply to feed the associated supply to at least one of the inlet ports on the module. The module further includes an electronic device for interpreting and transmitting the values of pressure sensed by the sensing elements.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: December 16, 2003
    Assignee: Walker Research LLC
    Inventor: Ralph Andrew Ferris
  • Publication number: 20020095993
    Abstract: An electronic pressure sensing device comprises a pressure sensing/transmitter module including at least one pressure sensor having a pair of opposed sensing elements, and a pair of inlet ports on the module to supply fluid under pressure to the sensing elements, and a plurality of adaptors each having a pair of outlet ports for connection to the inlet ports on the module whereby each adaptor can be selectively coupled to the module, each adaptor being capable of being connected to a different configuration of pressurized fluid supply to feed the associated supply to at least one of the inlet ports on the module, the module further including electronic means for interpreting and transmitting the values of pressure sensed by the sensing elements.
    Type: Application
    Filed: January 14, 2002
    Publication date: July 25, 2002
    Inventor: Ralph Andrew Ferris