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. 20, 1983
Filed:
May. 09, 1980
Applicant:
Inventor:
Heinz-Joachim Ruttershoff, Schwelm, DE;
Assignee:
O & K Orenstein & Koppel Aktiengesellschaft, Berlin, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
414722 ; 414694 ;
Abstract
A hydraulic excavator, with a boom lower part, a boom upper part and a stick, for conversion to operation using a gripper with large ranges of action and lifting heights. A connecting piece which rigidly connects the boom upper part and the boom lower part is fastened to the boom upper part, and is formed with an eye. A hydraulic cylinder which serves to actuate the stick is swingably mounted on the eye by means of a bolt.