Patents by Inventor William H. Schneider

William H. Schneider 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).

  • Pressure relief valve
    Patent number: 4168723
    Abstract: A pressure relief valve for attachment to a tank, such as used on an electrical transformer, which valve will release excessive gas pressure developed in the tank because of transformer malfunction. The valve has a cap which uncovers a signal indicating portion of the valve when the valve is unseated during a pressure release operation. The cap remains in signal uncovered position, after the valve resets, to warn maintenance personnel that the tank has had an excessive pressure condition.
    Type: Grant
    Filed: November 18, 1977
    Date of Patent: September 25, 1979
    Assignee: Chicago Pneumatic Tool Company
    Inventor: William H. Schneider
  • Rotary indicating instrument with magnetic reset
    Patent number: 3996881
    Abstract: A rotary hand indicating instrument including a maximum hand and having a solid crystal formed with stub shafts projecting axially from its front and rear faces, upon which shafts the maximum hand and associated magnetic resetting control elements are mounted.
    Type: Grant
    Filed: September 11, 1975
    Date of Patent: December 14, 1976
    Assignee: Qualitrol Corporation
    Inventor: William H. Schneider