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:
Feb. 21, 1978
Filed:
May. 24, 1976
Applicant:
Inventor:
Henry K Orthman, Lexington, NB (US);
Assignee:
Orthman Manufacturing Inc., Lexington, NB (US);
Primary Examiner:
Int. Cl.
CPC ...
A01B / ;
U.S. Cl.
CPC ...
172311 ; 172414 ; 172457 ; 172466 ; 172494 ;
Abstract
A farm implement tool bar includes a main frame section having a wing section pivotally connected thereto and operated by a hydraulic cylinder located in a passageway in the main frame. The pivotal connection between the hydraulic cylinder and the wing section includes a lost motion connection to allow the wing section to float above and below the horizontal when the wing section is in its extended position. Cooperating lock members on the cylinder and wing section engage when the wing section is pivoted from the extended position to an angular position to limit pivotal movement of the wing section independently of the cylinder.