Patents by Inventor Keith Herbert Gifford

Keith Herbert Gifford 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).

  • REPROGRAMMABLE SMART ACTUATOR OR REFRIGERATED CABINET WITH WEB SERVER
    Publication number: 20230189483
    Abstract: An actuator includes a motor, a drive member coupled to the motor and structured to transfer movement from the motor to an external mechanism, and a control chip configured to host a web server, connect with a wireless communication network and provide access to the web server via the wireless communication network, and control the motor using reprogrammable control logic. The reprogrammable control logic is adjustable by a user via the web server and the wireless communication network.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 15, 2023
    Inventors: Stéphane Norbert Marcel Gil, Alessandro Bonfanti, Alejandro Gonzalez Pozo, Keith Herbert Gifford, Bernard Philippe Clement
  • Dual restrictor shut-off valve for pressurized fluids of air cooling/heating apparatus
    Patent number: 6560987
    Abstract: A shut-off valve for pressurized fluids in an air cooling/heating apparatus that includes at least one condenser and at least one fluid evaporator communicating with each other by a pipe. The valve includes two ducts each containing a restrictor coaxially formed with a capillary designed to cause rapid expansion of the fluid when it emerges from the capillary, thus allowing expansion of the fluid in either the heating or cooling mode. The valve further includes a duct for sampling the pressurized fluid before expansion during operation in either the heating or cooling mode.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: May 13, 2003
    Assignee: Parker-Hannifin Corporation
    Inventors: Ross Edward Kreger, Keith Herbert Gifford, Scott David Gill, Daniele Casiraghi
  • Dual restrictor shut-off valve for pressurized fluids of air cooling/heating apparatus
    Publication number: 20020069668
    Abstract: A shut-off valve for pressurized fluids in an air cooling/heating apparatus that includes at least one condenser and at least one fluid evaporator communicating with each other by a pipe. The valve includes two ducts each containing a restrictor coaxially formed with a capillary designed to cause rapid expansion of the fluid when it emerges from the capillary, thus allowing expansion of the fluid in either the heating or cooling mode. The valve further includes a duct for sampling the pressurized fluid before expansion during operation in either the heating or cooling mode.
    Type: Application
    Filed: October 10, 2001
    Publication date: June 13, 2002
    Inventors: Ross Edward Kreger, Keith Herbert Gifford, Scott David Gill, Daniele Casiraghi