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:
Jan. 26, 2010
Filed:
Mar. 06, 2007
Steven William Mann, Gardendale, AL (US);
Steven William Mann, Gardendale, AL (US);
Fontaine Fifth Wheel Company, Trussville, AL (US);
Abstract
In a fifth wheel hitch, a locking mechanism for retaining a trailer kingpin within a fifth wheel slot. The locking mechanism includes a jaw assembly comprised of a cam arm pivotally attached at one end to the underside of the hitch plate, a bumper arm pivotally attached by one of its ends to the cam arm, a sliding jaw with a recess for receiving the kingpin shank, and a secondary lock member, pivotally attached at a point intermediate its two ends to the rear portion of the cam arm. The locking mechanism also includes a main spring to pull the free end of the cam arm toward a closed position. A release rod is coupled at one end to secondary lock member at an attachment point that is disposed away from the lock member's axis.