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:
Sep. 15, 2009
Filed:
Jul. 24, 2003
Applicant:
Michael L. Crabtree, Arvada, CO (US);
Inventor:
Michael L. Crabtree, Arvada, CO (US);
Assignee:
Freudenberg-NOK General Partnership, Plymouth, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An air spring sleeve. The sleeve comprises an elastomer body having two plies. Each ply comprises a cord embedded in the elastomer body. Each cord is wound about the sleeve in an opposing direction from the other and each having a helix angle. The first cord helix angle and the second cord helix angle comprise a cord differential helix angle. The first or inner cord helix angle is greater than a second or outer cord helix angle. The cord differential helix angle is in the range of approximately 0° to 2.5°.