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:
Nov. 25, 1986
Filed:
Nov. 05, 1985
Jan Astrom, Osby, SE;
Gunnar Eriksson, Almhult, SE;
AB Sjolanders Smides & Mek. Verkstad, Osby, SE;
Abstract
A mobile working platform, particularly a so-called under-bridge lift, comprising a parallelogram type boom which is horizontally and vertically pivoted to a vehicle and which at its end facing away from the vehicle has a turntable which is rotatable by means of a hydraulic motor and at its circumference supports the angular end of an inner arm which is vertically pivotable by means of a piston and cylinder assembly which is mounted adjacent to the circumference of the turntable approximately diametrically opposite the mounting point of the inner arm. By means of a hydraulic cylinder, the inner arm is vertically pivoted to an intermediate arm which by means of a further hydraulic cylinder is vertically pivoted to an outer arm which vertically pivotally supports a platform or cage. Between the turntable and the platform or cage, motion transfer means in the form of rods and chains extend to keep the platform or cage in a horizontal position independently of the angle of inclination of the boom and arms.