Patents by Inventor Jr. Farris

Jr. Farris 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).

  • Diaphragm pump having auxiliary chamber
    Patent number: 3975119
    Abstract: An improved diaphragm pump including motor driven reciprocating means secured at its outboard end to a flexible diaphragm spanning a pump cavity defined by a pump head including an integrally formed auxiliary chamber provided with valve means adapted to depressurize the pump cavity and the downstream side of the pumping system and to drain the downstream side of the system preparatory to dismantling the pump.
    Type: Grant
    Filed: September 17, 1975
    Date of Patent: August 17, 1976
    Inventor: Jr. Farris