Robert D Farrand

US Patent:

45137846, Apr 30, 1985

Filed:

Apr 18, 1984

Appl. No.:

6/601428

Inventors:

Robert M. Farrand - Saginaw MI
Daniel Puzio - Boonton NJ

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F16K 1514

US Classification:

137854

Abstract:

A check valve assembly is disclosed having a valve chamber with an inlet port and an outlet port. An elastomeric umbrella valve is contained in the chamber between the ports and is attached by an integral stem in a preloaded condition to normally close the inlet port and be deflectable in response to differential fluid pressure acting in one direction to open same to permit forward fluid flow therethrough past the valve and through the chamber to the outlet port. An inwardly projecting retention arrangement formed in the chamber retains the valve in operational relationship with the inlet port in the event the valve becomes unattached so that any backward flow from the outlet port still forces closure of the valve on same. A bypass channel arrangement also formed in the chamber maintains forward fluid flow past the valve to the outlet port in the event the valve becomes unattached.

US Patent:

46915877, Sep 8, 1987

Filed:

Dec 20, 1985

Appl. No.:

6/811733

Inventors:

Robert M. Farrand - Saginaw MI
Thomas J. Milton - Essexville MI
William R. McDow - Saginaw MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

B62D 118

US Classification:

74493

Abstract:

A steering column assembly for a vehicle which provides an infinite number of column positions within a field of motion and a larger field of motion than existing mechanism with memory set for all possible column positions with automatic return to retracted position.