The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 1999
Filed:
Aug. 08, 1997
Patrick D Gaukel, Bronson, MI (US);
Douglas Autotech Corp., Bronson, MI (US);
Abstract
A steering column assembly comprising an outer isolator tube closed at one end and open at an opposite end; at least one tubular resilient member concentrically disposed within and adhered to an inner wall of the outer isolator tube; and an inner isolator tube concentrically disposed within and adhered to an inner wall of the resilient member, the inner isolator tube member having one end extending from the open end of the outer isolator tube. A telescoping shaft insert assembly is provided having a first end concentrically received within an inner wall of the inner isolator tube and with an opposite end of the telescoping shaft assembly from the open end of the outer isolator tube. The tubular resilient member disposed between the outer and inner isolator tubes is preferably made from a polymeric material and absorbs or dampens transient noise and vibration produced by the road and sensed at the steering wheel. This results in reduced fatigue for the operator. The steering characteristics of the vehicle can also be altered by changing the hardness and elasticity of the resilient members. Additional structure is provided to absorb crash energy and reduce the risk of injury to the operator from impacts with the steering wheel.