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. 10, 1981
Filed:
Nov. 06, 1978
Applicant:
Inventor:
John J Lord, Pontiac, IL (US);
Assignee:
Interlake, Inc., Oak Brook, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ; G01S / ;
U.S. Cl.
CPC ...
356446 ; 250224 ; 250561 ; 340524 ; 340686 ; 356447 ; 414274 ;
Abstract
A storage rack entry vehicle for transporting loads in a warehousing system includes infrared radiation source and detector units which determine the relative position of the vehicle and load. The optical axes of the source and detector are parallel and closely-spaced. When infrared radiation from the source is scattered by the load (or a pallet carrying the load), some of the radiation is reflected back to the detector along a path substantially parallel to the optical axes. The maximum range of detection is controlled by adjusting the gain of an amplifier which forms part of the detector.