John L Crewse

41544951, May 15, 1979

Oct 26, 1977

5/845657

John L. Crewse - Parma Heights OH

Samuel Moore and Company - Aurora OH

H01R 1354

339 75P

A clip for securing a detachable electrical plug and cable assembly in an electrical receptacle having a hinged cover plate. The clip has first and second body members; means for securement of the first body member to the electrical plug and cable assembly; means for rotatably attaching the second body member relative the first body member; and biasing means integral with the first or second body members for pressing an adapted end of the second body member against the outside suface of the cover plate and bias the cover towards a closed position such that at least a portion of the inside surface of the cover plate presses against the plug to secure the electrical plug and cable assembly against relative movement with the receptacle. The first and second body members of the clip are preferably made from metallic wire or plate, but may be made from polymeric materials or combinations of polymeric and metallic materials. The clip is particularly useful in securing an electrical plug and cable assembly against relative movement with electrical receptacles used in Vehicle Tractor-Trailer applications.

40709477, Jan 31, 1978

Jul 22, 1976

5/707561

John L. Crewse - Parma Heights OH

The Cleveland Vibrator Company - Cleveland OH

F15B 2102
F15B 1517
F15B 13044

91 39

A springless impact device including a piston-cylinder mechanism having at least one preselected coacting port and passageway operatively connected to a valve pressurized fluid control apparatus which selectively feeds and exhausts pressurized fluid to and from the device in a predetermined manner. There is an area differential between the top and bottom ends of the piston head. The device includes an inverted "U"-shaped seal ring on the piston head which functions as a one-way check valve to effect piston reciprocation in coaction with the area differential on the piston head.