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. 31, 1976
Filed:
Mar. 31, 1975
Ronn J Leaf, Lexington, KY (US);
Dura Corporation, Southfield, MI (US);
Abstract
A tandem axle suspension has a bracket supporting a trunnion on which a pair of beams is journaled rockably in side-by-side relation, each beam having first and second arms extending to opposite sides of the trunnion, the first beam arms projecting in opposite directions and having their distal end portions extending along a common axis and each arranged to receive an axle for a wheel located at one side of the common axis, the first beam arms having respective upwardly facing spring supports which are offset toward the opposite side of the common axis, compression springs carried upon the supports being engaged by downwardly facing thrust structure on the second beam arms. Torsional equilibrium is attained in a vertical plane through the axis of the trunnion and about the common axis of the first arms. Rotation about the common axis of the first arms is limited to avoid excessive operating stress in bushings between the trunnion and the beams, but angular conical displacement capability is provided in bushings between the axles and the first arms of the beams.