Patents by Inventor Albert R. Hoffman

Albert R. Hoffman 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).

  • Patent number: 4915351
    Abstract: A quick disconnect garden hose coupling of first and second bodies with a quick disconnect connection therebetween and having fluid flow passageways, the first body having an axial projection with laterally oriented flow openings and a projecting abutment surface extending into the second body past an annular shoulder therein when the bodies are coupled, a resilient stretchable gasket disc on this shoulder, having a peripheral portion engaged and sealingly secured against the shoulder by the end of a connected hose or the like, having an imperforate central portion, and having orifices spaced radially outwardly of the imperforate portions, radially inwardly of the peripheral portion and axially aligned with the shoulder to allow closure of these openings against the shoulder when the bodies are disconnected and, when the bodies are connected, cause opening of the openings by stretching distortion of the gasket disc.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: April 10, 1990
    Inventor: Albert R. Hoffman