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:
Aug. 09, 1983
Filed:
Apr. 03, 1981
James R Jensen, Sunol, CA (US);
David W Deacon, Newark, CA (US);
PACCAR Inc., Bellevue, WA (US);
Abstract
A low-frequency-rate spring suspension system for a wheeled vehicle. A metal leaf spring has one end shackled directly to a bracket on the vehicle frame and a central portion secured to an axle. The second end of the leaf spring is spaced from the frame with guide means limiting lateral movement thereof while enabling vertical and longitudinal movement thereof. An air bag of an air spring is secured to the leaf spring in between the second end and the central portion and is also secured to the frame, the air bag being offset from the axle. The height of the air bag is controlled by a valve and a lever, so that the second end does not come into contact with the frame except under extraordinary circumstances. The leaf spring positions the air bag relative to the axle and provides roll resistance, while the air spring carries load to the frame in parallel with the forward section of the leaf spring, and no vertical load is placed on the leaf spring through the rear bracket. The guide means provide lateral location to the second end of the leaf spring without transmitting vertical load.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile