Robert E Matthiessen

US Patent:

7845607, Dec 7, 2010

Filed:

Feb 18, 2004

Appl. No.:

10/545537

Inventors:

Robert E. Matthiessen - Medford NJ, US
Christopher L. West - Tabernacle NJ, US

Assignee:

inTEST Corporation - Cherry Hill NJ

International Classification:

E04G 3/00

US Classification:

24829711, 24822912

Abstract:

A safety lock comprises a locking member () which engages a support. An inner lock shaft () actuates the locking member, the inner lock shaft having a first coupling face () at one end thereof. An outer lock shaft () has a second coupling face () which engages the first coupling face when the inner lock shaft and the outer lock shaft are in respective engagement positions relative to each other. A coupling structure () moves to prevent engagement of said first coupling face with said second coupling face.

US Patent:

56002580, Feb 4, 1997

Filed:

Dec 12, 1994

Appl. No.:

8/355501

Inventors:

Daniel J. Graham - West Berlin NJ
Alyn R. Holt - Cherry Hill NJ
Robert E. Matthiessen - Cherry Hill NJ
I. Marvin Weilerstein - Jenkintown PA
Christopher L. West - Vincentown NJ

Assignee:

inTEST Corporation - Cherry Hill NJ

International Classification:

G01R 3102

US Classification:

324758

Abstract:

A positioner facilitates docking and undocking of an electronic test head with a device handler. The positioner provides for rotation of the test head about a first axis. The positioner includes a linkage arm structure for moving the test head along a second axis orthogonal to the first axis. Using motors, sensors and a processor, the linkage arm structure accurately docks the electronic test head with the device handler.

US Patent:

47155744, Dec 29, 1987

Filed:

Nov 12, 1985

Appl. No.:

6/796911

Inventors:

Alyn R. Holt - Cherry Hill NJ
Robert E. Matthiessen - Cherry Hill NJ

Assignee:

inTest Corporation - Cherry Hill NJ

International Classification:

B25J 112

US Classification:

2482971

Abstract:

A materials handling system in which a load is maintained in a substantially weightless condition for easy and accurate positioning. A safety lock is introduced to prevent unlocking of the system if a condition of imbalance takes place while the system is locked.

US Patent:

50308696, Jul 9, 1991

Filed:

Jul 25, 1990

Appl. No.:

7/558144

Inventors:

Alyn R. Holt - Cherry Hill NJ
Robert E. Matthiessen - Cherry Hill NJ

Assignee:

inTEST Corporation - Cherry Hill NJ

International Classification:

G01R 100

US Classification:

324158F

Abstract:

A device testing system of the type in which an electronic test head is mounted for pivotal movement about three orthogonal axes. Cables are connected between a test cabinet and the test head to carry electronic signals. The test head is directly mounted to, and the cable is introduced to the test head through, a split ring cable pivot.

US Patent:

54409438, Aug 15, 1995

Filed:

Sep 15, 1993

Appl. No.:

8/122055

Inventors:

Alyn R. Holt - Cherry Hill NJ
Robert E. Matthiessen - Cherry Hill NJ
Christopher L. West - Tabernacle NJ

Assignee:

inTEST Corporation - Cherry Hill NJ

International Classification:

F16H 2520
B25J 112

US Classification:

74 8915

Abstract:

A positioner facilitates docking and undocking of an electronic test head with a device handler. The position provides for rotation of the test head about a first axis. The positioner includes a scissor arm structure for moving the test head along a second axis orthogonal to the first axis.

US Patent:

59007370, May 4, 1999

Filed:

May 7, 1996

Appl. No.:

8/643967

Inventors:

Daniel J. Graham - West Berlin NJ
Alyn R. Holt - Cherry Hill NJ
Robert E. Matthiessen - Cherry Hill NJ
I. Marvin Weilerstein - Jenkintown PA
Christopher L. West - Vincentown NJ

Assignee:

inTEST Corporation - Cherry Hill NJ

International Classification:

G01R 3102

US Classification:

324758

Abstract:

A positioner facilitates docking and undocking of an electronic test head with a device handler. The positioner provides for rotation of the test head about a first axis. The positioner includes a linkage arm structure for moving the test head along a second axis orthogonal to the first axis. Using motors, sensors and a processor, the linkage arm structure accurately docks the electronic test head with the device handler.