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:
Nov. 27, 2007
Filed:
Jan. 24, 2005
Michael A. Ferkany, White Lake, MI (US);
Michael A. Ferkany, White Lake, MI (US);
Ace Controls, Inc., Farmington Hills, MI (US);
Abstract
A hydraulic shock absorber has an outer body with a central bore. A first piston is telescopingly received in the central bore adjacent a closed end thereof, and has a generally annular shape with an inner surface defining a central piston bore, and an outer surface disposed adjacent the sidewall of the central body bore to define a first annularly-shaped metering aperture. A second piston is telescopingly received in the central bore of the first piston, and has an outer surface disposed adjacent to the inner surface of the first piston to define a second annularly-shaped metering aperture therebetween. Hydraulic fluid is disposed in the central body bore between the closed end thereof and the pistons, such that inwardly directed impact forces on the pistons displace the hydraulic fluid through the metering apertures to progressively dampen the impact forces.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile