Gerard J Schorn

50488163, Sep 17, 1991

Jul 9, 1990

7/549937

Victor L. Chun - Holland PA
Gerard J. Schorn - Southampton PA

Murata Wiedemann, Inc. - King of Prussia PA

B65H 918

271227

A system is disclosed for registering a sheet in punch press or other apparatus having a control system carrying out a programmed position of the sheet during punching operations, in which a movable locator plate is urged into an advanced position along an axis of movement so as to be displaced when the sheet is moved a fixed distance along one axis. A distance transducer generates a continuously varying electrical signal corresponding to the displacement of the locator plate from its advanced position, which signal is transmitted to the control system to modify the part program in accordance with the actual location of the sheet.

50477528, Sep 10, 1991

Nov 14, 1989

7/436420

Gerard J. Schorn - Southampton PA

Murata Wiedemann, Inc. - King of Prussia PA

G08B 2100

340680

A safety system for a machine tools having a powered feed table in which ultrasonic transmitters and receivers are arrayed on the leading, trailing and lateral sides of the table establishing moving protected zones so that if an operator enters the zones, the machine is shut down only if the table has moved close to the person in that zone. A failsafe feature causes shutdown in the event of failure of any of the safety system components.

52994783, Apr 5, 1994

Jun 15, 1993

8/077706

Gerard J. Schorn - Southampton PA
James R. Hunter - Chadds Ford PA

Murata Machinery, Ltd. - Aichi

B26D 512
G06F 1546

83 13

A method for controlling punch press noise in which the noise level produced is monitored by a detector and the press ram velocity is modified in real time to keep the noise level within preset limits. A time weighted average noise level is also controlled by varying the ram velocity for punching operations over a period of operation to maintain a projected time weighted average within a preset limit.

51993384, Apr 6, 1993

Mar 9, 1992

7/848130

Gerard J. Schorn - Southampton PA
Maynard H. Unger - Norristown PA

Murata Machinery, Limited - Aichi

B26D 520

83 13

A collision avoidance system for program controlled punch presses which position the ram at a low "hover" height during work piece movement in which a switch is located to be tripped by inward movement of the workpiece gripper carriage to a degree in which a punch-gripper collision is possible, with the ram elevated to a safe height whenever the switch has been tripped.