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:
Jul. 12, 2005
Filed:
Dec. 10, 2002
Randall F. Alder, Fenton, MI (US);
David A. Spinweber, Clarkston, MI (US);
Nicholas O. Kaltsounis, Rochester Hills, MI (US);
Mary Elizabeth Cortese, Troy, MI (US);
Randall F. Alder, Fenton, MI (US);
David A. Spinweber, Clarkston, MI (US);
Nicholas O. Kaltsounis, Rochester Hills, MI (US);
Mary Elizabeth Cortese, Troy, MI (US);
Dana Corporation, Toledo, OH (US);
Abstract
A fluid damper includes a hollow body portion, a first end and a second end. The hollow body portion has a corrugated or shaped outer surface and is filled with a compressible medium. The first and second ends of the damper contact the inner wall of the fluid-carrying line to stabilize the position of the damper within the fluid-carrying line to optimize dampening of the pressure pulsations in the fluid. The damper is formed by extruding or forming the hollow body portion into the desired shape, trimming the hollow body portion to the desired length, crimping and sealing the first and second ends by a heat staking process. The damper can be made from a material or materials that is impermeable and resistant to the fluid within the fluid system. The damper is integrally formed, thereby eliminating welding or manufacturing steps and reducing cost of manufacture.