Patents by Inventor Francis C. Keffer

Francis C. Keffer 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).

  • Hand-held shower head
    Patent number: 4193553
    Abstract: A hand-held shower head includes a housing which is cylindrical in shape and has a frusto-conical portion with a single orifice nozzle in the center thereof. A push-button actuator is positioned on the cylindrical side portion which in turn actuates a valve mechanism through a diaphragm seal. Water flows from an inlet opening through a lightly biased, normally closed valve which is operated through a plunger connected via the diaphragm to the push-button actuator, and out through a flow restricter and the single orifice nozzle. The push-button actuator is provided with stop means to limit the depression of the actuator.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: March 18, 1980
    Inventors: Charles M. Kelly, Francis C. Keffer
  • Hand-held shower head
    Patent number: D254627
    Type: Grant
    Filed: August 19, 1977
    Date of Patent: April 1, 1980
    Inventors: Charles M. Kelly, Francis C. Keffer