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:
Sep. 09, 1980
Filed:
Aug. 04, 1978
Applicant:
Inventors:
Patrick Kuhn, Bismarck, ND (US);
Donald K Schmidt, Bismarck, ND (US);
Assignee:
Clark Equipment Company, Buchanan, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47F / ;
U.S. Cl.
CPC ...
2482921 ; 239166 ; 248564 ;
Abstract
A boom assembly mountable on a vehicle is provided in which the boom is supported at a lower or working position by a first spring. A manually applied force selectively applies a moment to partially rotate a toggle device and to partially lift the boom to an upper or clearance position. The partial rotation of the toggle device activates a second spring and the boom is raised to a second position by the combined force of the manually applied force and the force of the second spring.