Patents by Inventor Paul D. Primrose

Paul D. Primrose 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).

  • Automatically switching valve with remote signaling
    Patent number: 6763843
    Abstract: A programmable circuit detects drop in pressure of a supplied pressurized gas below a predetermined threshold pressure and automatically switches to a different supply of pressurized gas and automatically contacts a remotely located host computer. The circuit sends status data to the host computer and enters a server mode in which the circuit performs commands issued by the host computer. The commands include commands to change data of the programmable circuit and to download new programming. The predetermined threshold pressure is established by manually setting the supplied pressurized gas to a desired pressure and causing the programmable circuit to measure the pressure of supplied gas and to store the measured pressure as the threshold pressure.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: July 20, 2004
    Inventors: William H. Dickerson, Jr., Paul D. Primrose
  • Automatically switching valve with remote signaling
    Patent number: 6536456
    Abstract: A programmable circuit detects drop in pressure of a supplied pressurized gas below a predetermined threshold pressure and automatically switches to a different supply of pressurized gas and automatically contacts a remotely located host computer. The circuit sends status data to the host computer and enters a server mode in which the circuit performs commands issued by the host computer. The commands include commands to change data of the programmable circuit and to download new programming. The predetermined threshold pressure is established by manually setting the supplied pressurized gas to a desired pressure and causing the programmable circuit to measure the pressure of supplied gas and to store the measured pressure as the threshold pressure.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: March 25, 2003
    Inventors: William H. Dickerson, Jr., Paul D. Primrose
  • Automatically switching valve with remote signaling
    Publication number: 20020020444
    Abstract: A programmable circuit detects drop in pressure of a supplied pressurized gas below a predetermined threshold pressure and automatically switches to a different supply of pressurized gas and automatically contacts a remotely located host computer. The circuit sends status data to the host computer and enters a server mode in which the circuit performs commands issued by the host computer. The commands include commands to change data of the programmable circuit and to download new programming. The predetermined threshold pressure is established by manually setting the supplied pressurized gas to a desired pressure and causing the programmable circuit to measure the pressure of supplied gas and to store the measured pressure as the threshold pressure.
    Type: Application
    Filed: April 6, 2001
    Publication date: February 21, 2002
    Inventors: William H. Dickerson, Paul D. Primrose