Kirk A Marchand

US Patent:

6412391, Jul 2, 2002

Filed:

Dec 16, 1999

Appl. No.:

09/464791

Inventors:

David J. Stevens - San Antonio TX
Kirk A. Marchand - San Antonio TX
Thomas J. Warnagiris - San Antonio TX

Assignee:

Southwest Research Institute - San Antonio TX

International Classification:

F41H 5007

US Classification:

89 3617

Abstract:

A counter-terrorism, reactive personnel protection system which detects the presence of a destructive object as it approaches a designated personnel target along an intersecting path. Before impact, an air bag is rapidly inflated and interposed between the destructive object and the target so as to provide a protective barrier. The air bag is constructed from polyethylene material or other anti-ballistic materials, and serves to halt or redirect the detected destructive force of the object and thereby protect the designated target from attack.

US Patent:

6595102, Jul 22, 2003

Filed:

May 16, 2002

Appl. No.:

10/147388

Inventors:

David J. Stevens - San Antonio TX
Kirk A. Marchand - San Antonio TX
Thomas J. Warnagiris - San Antonio TX

Assignee:

Southwest Research Institute - San Antonio TX

International Classification:

F41H 5007

US Classification:

89 3617, 89 3602, 280735, 280736

Abstract:

A counter-terrorism, reactive personnel protection system which detects the presence of a destructive object as it approaches a designated personnel target along an intersecting path. Before impact, an air bag is rapidly inflated and interposed between the destructive object and the target so as to provide a protective barrier. The air bag is constructed from polyethylene material or other anti-ballistic materials, and serves to halt or redirect the detected destructive force of the object and thereby protect the designated target from attack.

US Patent:

60295589, Feb 29, 2000

Filed:

May 12, 1997

Appl. No.:

8/855895

Inventors:

David J. Stevens - San Antonio TX
Kirk A. Marchand - San Antonio TX
Thomas J. Warnagiris - San Antonio TX

Assignee:

Southwest Research Institute - San Antonio TX

International Classification:

F41H 5007

US Classification:

89 3617

Abstract:

A counter-terrorism, reactive personnel protection system which detects the presence of a concussive shock wave or ballistic projectile as it approaches a designated personnel target. Before impact, an air bag is rapidly inflated and interposed between the destructive force and the target so as to provide a protective barrier. The air bag is constructed from ultra-high molecular weight polyethylene material, and serves to halt or redirect the detected destructive force and thereby protect the designated target from attack.

US Patent:

54906610, Feb 13, 1996

Filed:

Sep 29, 1994

Appl. No.:

8/314741

Inventors:

David J. Stevens - San Antonio TX
Joseph B. Mayer - San Antonio TX
Kirk A. Marchand - San Antonio TX

Assignee:

Southwest Research Institute - San Antonio TX

International Classification:

E01F 1504

US Classification:

256 131

Abstract:

The present invention is directed to a quick release coupling, a displacement sensor, and an electronic monitoring unit. The displacement sensor is mounted near the end of the guardrail for measuring the force of a vehicle impact. The electronic monitoring unit is connected to the sensor and measures the acceleration of the impact and provides an actuation signal when the acceleration exceeds a predetermined value. The quick release coupling forms a connection between two separated portions of the guard rail and includes an explosively actuated release mechanism actuated by the monitoring unit.