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:
Jul. 21, 1981
Filed:
Apr. 17, 1979
Applicant:
Inventor:
Sten H Ahlbom, Vastra Frolunda, SE;
Assignee:
AB Volvo, Goteborg, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187 / ; 2502 / ;
Abstract
A device for orienting a movable object such as a lifting fork truck in a certain position relative to a second object such as a load, the device having light-emitting device for illuminating the second object so that an image with lighter and darker fields is created thereon, a photoelectric detector movable together with the movable object to scan the image, electronic control equipment connected to the detector for receiving signals therefrom, and operating equipmenT for the movable object, connected to the control equipment to receive signals therefrom and to orient the movable object, dependent on the signals of the photoelectric detector, to the control equipment.