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:
May. 11, 1976
Filed:
Apr. 10, 1975
Robert Sorensen, Glen Ellyn, IL (US);
Richard A Zablocki, Downers Grove, IL (US);
Paul C Gordon, Hinsdale, IL (US);
International Harvester Company, Chicago, IL (US);
Abstract
A pitman mower has a hitch frame, a drag bar, a cutterbar pivotally attached to the drag bar for pivotal movement in the transverse vertical plane and a drive mechanism for the cutterbar mounted on the drag bar. A pair of fore-and-aft extending links interconnect the hitch frame and drag bar in a generally horizontal four bar parallel linkage, the left link being resilient in the transverse direction, preferably comprising a leaf spring, having one end rigidly connected to its adjacent member. The right link comprises a breakaway pull bar assembly rotatable about an axis generally longitudinal thereof and has a float spring and lifting chain connected thereto and disposed to rotate the pull bar against the load imposed thereon by a gag link connected to the pull bar away from the axis of rotation thereof and extending to the cutterbar to control its rotation about the drag bar.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile