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:
Feb. 23, 1999
Filed:
Apr. 25, 1994
Magnus Danek, Upplands Vasby, SE;
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Abstract
A shock absorbing system wherein arrangements are provided for altering the hysteresis effects of the fluid utilized so as to obtain desired damping curves. Particularly, by employing different hysteresis effects it is possible to obtain larger damping forces at the end of the piston stroke. The hysteresis effect can be altered by changing the effective area of the shock absorber piston by controlling the flow paths between the piston chambers and an accumulator chamber and the pressures necessary to open these flow paths. In addition, by employing selectively openable variable volume chambers and variable pressure accumulator chambers, further changes in the hysteresis effect can be accomplished.