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.

Date of Patent:
Sep. 20, 1988

Filed:

May. 20, 1987
Applicant:
Inventors:

Robert J Heideman, Westland, MI (US);

Virgil J Van Parys, Farmington Hills, MI (US);

Assignee:

Enertrols, Inc., Farmington Hills, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ; F16F / ; F01B / ; B23Q / ;
U.S. Cl.
CPC ...
188-111 ; 92 / ; 116230 ; 188287 ; 338 / ;
Abstract

A shock absorber includes a piston slidably mounted in a fluid cylinder for decelerating the motion of an object acting on the shock absorber. A metering mechanism adjusts the rate at which fluid escapes from the cylinder upon displacement of the piston caused by impact of the object. A proximity sensor disposed in the end of the cylinder provides an indication of when the piston reaches a displacement position corresponding to a stroke length in which maximum energy is transferred from the object to the fluid. The proximity sensor includes an electrical probe extending through the end wall of the cylinder and possesses an electrical property whose magnitude varies in accordance with the distance between the piston and the probe.


Find Patent Forward Citations

Heideman, Robert. (1988). Shock absorber with proximity switch (U.S. Patent No. 4771866). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4771866

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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