Patents by Inventor Jeffrey W. Spencer

Jeffrey W. Spencer 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).

  • Dispenser pump
    Patent number: 4739904
    Abstract: A dispenser pump has pump chamber (34) whose volume is variable to draw up or discharge material, by the axial movement of a cup (25) on a stationary hollow stem (12). The seal (16) between them slides on an inner wall of the cup. A collector (30) at the lower end of the cup causes any material leaked past the seal to be guided inwardly to apertures (33) where it may drop to a body part (9) and pass via apertures (11') to a container (1) of the material.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: April 26, 1988
    Assignee: The English Glass Company Limited
    Inventors: Jeffrey W. Spencer, Anthony Wass
  • Condiment dispenser
    Patent number: D507460
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: July 19, 2005
    Assignee: The Colman Group, Inc.
    Inventors: Paul Omdoll, Jeffrey W. Spencer, Thomas P. Kasting, David J. Pritchett, Brian Law, Tim Strandell, Mike Phillips, Mark Brenneman