Patents by Inventor Keith H. Gifford

Keith H. 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).

  • Access port (suitable for fluid/refrigerant system)
    Patent number: 6848670
    Abstract: An access port includes a process port with a removable valve core. An adapter is receivable within an end of the process port, and includes a depressor which can engage a valve within the valve core. The process port allows correction of standard female coupling members for rapid in-plant processing of air conditioning and refrigeration systems; while the use of the adapter with the process port permits the connection of standard field service equipment, to facilitate repair of the air conditioning and refrigeration systems.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: February 1, 2005
    Assignee: Parker-Hannifin Corporation
    Inventors: Gregory A. Haunhorst, Keith H. Gifford, John C. Field
  • Access port (suitable for fluid/refrigerant system)
    Publication number: 20030015679
    Abstract: An access port includes a process port with a removable valve core. An adapter is receivable within an end of the process port, and includes a depressor which can engage a valve within the valve core. The process port allows correction of standard female coupling members for rapid in-plant processing of air conditioning and refrigeration systems; while the use of the adapter with the process port permits the connection of standard field service equipment, to facilitate repair of the air conditioning and refrigeration systems.
    Type: Application
    Filed: May 30, 2002
    Publication date: January 23, 2003
    Inventors: Gregory A. Haunhorst, Keith H. Gifford, John C. Field