Patents by Inventor John R. Keenan

John R. Keenan 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).

  • Universal ferrule or band clamp hose fitting
    Patent number: 4453746
    Abstract: A hose fitting having a stem which includes a recess between a hose stop flange and a bulbous distal end and radial ridges in the recess. The maximum diameters of the ridges are smaller than the maximum diameter of the hose stop flange and the distal end so that a band clamp can be used to secure a hose to the hose fitting. A crimped ferrule fastener includes two beads each traversing a portion of the recess and the hose stop flange or a portion of the bulbous end, respectively.
    Type: Grant
    Filed: December 23, 1980
    Date of Patent: June 12, 1984
    Assignee: General Signal Corporation
    Inventor: John R. Keenan
  • Air hose coupling lock
    Patent number: 4402534
    Abstract: A lock having a first portion for engaging a first coupling and in concert with a shoulder of a second portion to lie in the plane of the lip of a second coupling inhibits uncoupling rotation. A third portion of the lock for engaging the first coupling maintains the shoulder in the plane and the lock is further maintained in position by a fourth portion engaging both couplings. The first and third portions are in substantially the same plane for ease of insertion of the lock.
    Type: Grant
    Filed: May 27, 1981
    Date of Patent: September 6, 1983
    Assignee: General Signal Corporation
    Inventor: John R. Keenan
  • Packing for equalizing reservoir cut-out valve
    Patent number: 4391293
    Abstract: The packing for elements of a valve subject to reversal of differential pressure includes a pair of spaced packings with a recess there-between connected to atmosphere to eliminate reversal of differential pressure across individual packings of the pairs.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: July 5, 1983
    Assignee: General Signal Corp.
    Inventor: John R. Keenan