Patents by Inventor Edwin W. MacWilliam

Edwin W. MacWilliam 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).

  • Flexible fluid conduit assembly
    Patent number: 5096231
    Abstract: An improved hose fitting assembly is disclosed which is designed for use in automotive air conditioning systems and is particularly well suited for use in such systems employing recently developed composite type hose which incorporates an inner liner of a thermoplastic material such as nylon or the like. The assembly comprises a resilient sealing member provided on the outer periphery of the fitting which is designed to sealingly engage the hose member and fitting to provide a positive seal therebetween so as to prevent loss of pressurized fluid such as refrigerant gas.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: March 17, 1992
    Assignee: S&H Fabricating and Engineering Inc.
    Inventors: Jerry H. Chisnell, Edwin W. MacWilliam