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:
Jun. 28, 1977
Filed:
Dec. 17, 1975
Applicant:
Inventor:
Calvin B Blair, Barnard, KS (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01B / ;
U.S. Cl.
CPC ...
172311 ; 172414 ; 172417 ; 172501 ; 172456 ; 56 158 ;
Abstract
A wing folding or lift kit adapted to be easily installed on the central frame members of foldable, multi-sectioned earthworking implements to selectively move pivotally mounted side sections or wings. A centrally mounted floating hydraulic cylinder has linkage arms hinged on the ends thereof, with the outer ends of said arms attached, by lost-motion links, to cross members of the wings. In cylinder-extended position, the wings are free to follow ground contour without 'working' the cylinder. Upon contraction of the cylinder, the wings are rotated or folded.