Patents by Inventor Greg Renfrew

Greg Renfrew 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: 5682682
    Abstract: A dial indicator comprising a body having an dial face with marked graduations; a longitudinally reciprocating rod extending from the body, the rod having a standard rack internal to the body and an end of the rod external to the body having a contact surface; an interacting series of gear assemblies inside the body, one of the gear assemblies having a crowned pinion, the crowned pinion being driven by the rack; and a dial hand attached to the axle of another of the gears; whereby longitudinal pressure on the contact surface causes the rod to retract longitudinally into the body, the distance of retraction being indicated by the dial hand on the dial face.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: November 4, 1997
    Assignee: Federal Products Co.
    Inventors: Greg Renfrew, Hans Windler