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:
Aug. 02, 1977
Filed:
Aug. 30, 1976
Applicant:
Inventors:
Floyd Albert Schmitz, Jr, Burlington, IA (US);
Wayne Gerald Smith, Burlington, IA (US);
Assignee:
J. I. Case Company, Racine, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66C / ;
U.S. Cl.
CPC ...
2141 / ; 92 23 ; 212 / ; 214776 ;
Abstract
A boom arm safety lock including a pivotally-mounted boom arm and a fluid cylinder assembly for pivoting the arm up and down. A lock bar is pivotally mounted adjacent the boom arm for upwardly supporting the boom arm in the event the fluid in the cylinder assembly is exhausted, and the boom arm will therefore remain in the raised position.