Eric H Halbert Deceased1912 Marsh Rd, Wilmington, DE 19810

3964659, Jun 22, 1976

Mar 12, 1975

5/557756

Frank J. Eiben - Cincinnati OH
Eric H. Halbert - Cincinnati OH
William T. Jobe - Bethel OH
Carl Siegmann - Bremen, DT

Senco Products, Inc. - Cincinnati OH

B25C 104

227 8

In a fluid operated tool of the type having firing control means comprising two separate and independent triggering means shiftable independently and in any order between normal and firing positions and requiring both triggering means to be concurrently in their firing positions to actuate the tool, safety means introducing into the firing sequence of the firing control means a time limit within which both triggering means must achieve their firing positions. If both triggering means do not achieve their firing positions within the time limit, the firing sequence must be reinitiated with a selected one or both of the triggering means initially in their normal positions.

4744238, May 17, 1988

Jul 2, 1986

6/881340

Eric H. Halbert - Cincinnati OH

Senco Products, Inc. - Cincinnati OH

B21J 1534

72391

A pneumatically actuated tool for setting blind rivets of the type having a body, a head and breakaway pull mandrel. The tool comprises a body having a double-acting cylinder therein, a handle attached to the body, a guide body affixed to the body beneath the cylinder, a pull track in the guide body for the rivets and a bore in the body connecting the cylinder and the pull track, the cylinder, the bore, and the pull track being coaxial. The tool is provided with a rivet pickup and pull mechanism comprising a lower load piston having a downwardly depending tubular assembly slidable within the body bore and pull track and terminating in a nose piece, and an upper pull piston having a downwardly depending tubular assembly telescopicly and shiftably located within the lower load piston tubular assembly and terminating in a chuck provided with mandrel-engaging jaws. The tool has a magazine connected to the guide body and containing a strip of rivets. An automatic rivet feed mechanism is provided comprising a shiftable feeder shoe and pawl for advancing the forwardmost rivet of the strip into the guide body pull track, a ratchet for preventing the strip from shifting away from the guide body pull track, and means to hold and center the forwardmost rivet in the guide body pull track.

4811882, Mar 14, 1989

Oct 26, 1987

7/113597

Jay M. Steeves - Cincinnati OH
Eric H. Halbert - Cincinnati OH

Sencorp - Cincinnati OH

B25C 104

227 8

A valve arrangement for a fastener driving tool of the type having a cylinder and piston/driver assembly for driving a fastener, a main valve which, when actuated, opens the cylinder to air under pressure causing the piston/driver assembly to drive a fastener, a remote valve which, when actuated, causes the main valve to open, and a trigger actuated valve together with a workpiece responsive safety actuated valve which, when both are actuated, actuate the remote valve, the valve arrangement being such that the safety actuated valve must be actuated before the trigger actuated valve in order for the remote valve to the actuated. The trigger actuated valve has a trigger-operated stem slidably mounted within a valve body. The body defines a chamber in which one end of the remote valve stem is slidingly and sealingly engaged. Air under pressure within the chamber maintains the remote valve stem in an unactuated position.