Patents by Inventor Robert Wehrheim

Robert Wehrheim 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).

  • Centrifugal actuator switch with a limiter for spring movement
    Patent number: 9734969
    Abstract: A centrifugal actuator switch includes a sleeve having a collar on which two protuberances are formed. Each protuberance engages a biasing member to limit movement of the biasing member when weighted lever arms of the switch are extended by centrifugal force as they rotate at a predetermined rotational speed.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: August 15, 2017
    Assignee: Nidec Motor Corporation
    Inventor: Robert Wehrheim
  • Centrifugal Actuator Switch With A Limiter For Spring Movement
    Publication number: 20150325395
    Abstract: A centrifugal actuator switch includes a sleeve having a collar on which two protuberances are formed. Each protuberance engages a biasing member to limit movement of the biasing member when weighted lever arms of the switch are extended by centrifugal force as they rotate at a predetermined rotational speed.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 12, 2015
    Applicant: Nidec Motor Corporation
    Inventor: Robert Wehrheim
  • One-piece drive pulley and belt guide
    Publication number: 20050255949
    Abstract: In one-piece combination, a drive pulley and belt guide for a belt-driven machine. The pulley has a belt-driving section configured for engagement by the belt and a belt-guiding section integral with the belt-driving section. The belt-guiding section has a conically-tapering external surface and an internal surface which is substantially free of reinforcing members and defines a hollow, cup-shaped interior free from structure within the interior.
    Type: Application
    Filed: May 17, 2004
    Publication date: November 17, 2005
    Inventors: L. Dohogne, Robert Wehrheim, Mark Fry, Walter Stribling