Patents by Inventor Harry L. Spitzer Sr.

Harry L. Spitzer Sr. 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: 5988202
    Abstract: Pre-set maximum-flow metering and mixing valves and methods of their operation, including limiting maximum axial (longitudinal) withdrawal of a valve metering stem corresponding to its minimally outlet-occluding location at fully open valve position. A sleeved member is threaded within a mating threaded end of a valve housing and about a mating end of an axially (longitudinally) adjustable flow-metering stem member to limit its travel (as by rotation) from seated fully closed position to a fully open position, corresponding to maximum withdrawal of its tapered end portion from its occluding insertion within the fluid outlet.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: November 23, 1999
    Inventor: Harry L. Spitzer, Sr.
  • Patent number: 5547279
    Abstract: Stir-wipe apparatus in the form of rotatable stirrer means fitting removably in a cooking vessel, being effective together with non-manual drive means to stir the contents slowly and to wipe the sidewall and the bottom of the vessel in doing so. The drive means is conveniently an electric motor located on a lid for the cooking vessel or in a handle of the lid or a handle of the vessel itself.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: August 20, 1996
    Inventor: Harry L. Spitzer Sr.