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:
Dec. 03, 1991
Filed:
Nov. 15, 1989
Applicant:
Inventors:
Assignee:
Laboratoire Central des Ponts et Chaussees, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
3185681 ; 318652 ; 37DI / ; 414694 ; 414699 ;
Abstract
A manipulator arm is provided for public works machines comprising two beams of equal length and a pivoting cradle connected in series. The first or command beam is rotated about the forward end thereof on the chassis of a support unit, and the cradle is pivoted in response to rotation of the command beam by means of gears and chains designed and arranged such that the cradle undergoes a linear translational movement and maintains a predetermined inclination.