Timothy D Culbertson

US Patent:

54604214, Oct 24, 1995

Filed:

May 31, 1994

Appl. No.:

8/251157

Inventors:

Timothy J. Culbertson - Waterford MI

Assignee:

Chrysler Corporation - Highland Park MI

International Classification:

B60R 1918

US Classification:

293133

Abstract:

A dual resistance cylinder responsive to the energies present in low speed collisions to return the bumper without damage and responsive to the energies present in high speed collisions to offer greater protection to the vehicle passengers. The cylinder employs members having telescoping side walls which offer a first (low) resistance against compression and, when locked together, offer a second (high) resistance against compression. The side walls are locked together by way of an electronic solenoid.