Patents by Inventor Robert William Gray

Robert William Gray 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).

  • Intrinsically safe portable programmer for enclosed electronic process control equipment
    Patent number: 6795319
    Abstract: An intrinsically safe portable programmer for communicating with the electronic process control equipment over a wireless communication link. The portable programmer comprises a microprocessor controlled electronic circuit housed in an enclosure formed from a polymers polystyrene having a low surface resistivity. The electronic circuit is mounted inside the enclosure with a low voltage battery supply and encased in epoxy to prevent sparking. The electronic circuit includes an infrared transmitter and a keypad. In response to keypad inputs, the electronic circuit generates control signals which are transmitted to the electronic process control equipment via the infrared transmitter.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: September 21, 2004
    Assignee: Siemens Milltronics Process Instruments, Inc.
    Inventors: Nigel Ashley Preston, Robert William Gray
  • Intrinsically safe portable programmer for enclosed electronic process control equipment
    Publication number: 20020135989
    Abstract: An intrinsically safe portable programmer for communicating with the electronic process control equipment over a wireless communication link. The portable programmer comprises a microprocessor controlled electronic circuit housed in an enclosure formed from a polymers polystyrene having a low surface resistivity. The electronic circuit is mounted inside the enclosure with a low voltage battery supply and encased in epoxy to prevent sparking. The electronic circuit includes an infrared transmitter and a keypad. In response to keypad inputs, the electronic circuit generates control signals which are transmitted to the electronic process control equipment via the infrared transmitter.
    Type: Application
    Filed: March 20, 2001
    Publication date: September 26, 2002
    Inventors: Nigel Ashley Preston, Robert William Gray