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:
Dec. 07, 1999
Filed:
Mar. 23, 1998
Paul H Turner, Boulder, CO (US);
Michael L McAndrews, Santa Cruz, CA (US);
Ronald Powers, Santa Cruz, CA (US);
Rockshox, Inc., San Jose, CA (US);
Abstract
A shock absorber formed of an inner tubular element telescopingly slidable within an outer tubular element. A piston is mounted on the inner tubular element and is provided with valving that permits adjustability of compression damping separate from rebound damping. Preferably, the piston slides within a glide tube substantially concentrically mounted within the outer tubular and having a highly finished surface along which the piston slides. A first chamber is formed within the glide tube a second chamber is formed between the outer tubular element and the glide tube. Valves are positioned between these first and second chambers to control compression flow and rebound flow separately and independently. A main compression spring is positioned external to and between the inner and outer tubular elements of the shock absorber, and acts to bias the tubular elements away from each other. A gas chamber positioned within the inner tubular element serves to assist the main compression spring in biasing the inner and outer tubular elements, and also acts as part of a volume compensation system when the shock absorber is compressed and expanded.