Patents by Inventor Edgar B. Rumble

Edgar B. Rumble 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).

  • Pipe coupling with a wedging contractible ring
    Patent number: 4138146
    Abstract: A pipe coupling for releasably securing pipe in end to end relation uses controlled wedging action of contractile rings positioned between the coupling and the ends of the pipes. The pipes are disengagable from the coupling by manually moving the pipes inwardly of the coupling and then inserting a thin half circular sleeve tool between the pipes and the contractile rings so as to reposition the contractile rings away from the pipes.
    Type: Grant
    Filed: September 13, 1977
    Date of Patent: February 6, 1979
    Assignee: Michigan Pipe Fittings Company
    Inventor: Edgar B. Rumble
  • Pipe coupling with a wedging contractile ring
    Patent number: 4087120
    Abstract: A pipe coupling for releasably securing pipes in end to end relation uses ntrolled wedging action of contractile rings positioned between the coupling and the ends of the pipes. The pipes are disengagable from the coupling through the use of a tool inserted between the pipe and the coupling and simultaneously moving the pipe inwardly of the coupling so as to reposition the contractile rings.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: May 2, 1978
    Assignee: Michigan Pipe Fittings Company, Div. of Michigan Hanger Co. Inc.
    Inventor: Edgar B. Rumble