Patents by Inventor De Von Smith

De Von Smith 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).

  • Water supply coupling with one-way valve for recreational vehicles
    Patent number: 6250336
    Abstract: On a recreational vehicle, a water supply coupling is provided to permit the hookup of an external water supply to the plumbing of the recreational vehicle. The coupling selectively permits one-way flow into, but not out from, the plumbing, thereby maintaining the pressurized integrity of the plumbing system. The coupling has a movable check member which may be seated against an annulus to create a seal. In various disclosed embodiments, the check member may be a check ball, a mushroom-shaped check member having a hemispherical seating portion and a stem, and a two-piece check member.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: June 26, 2001
    Assignee: B&B Molders
    Inventors: Britt Murphey, De Von Smith