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:
Aug. 09, 1977
Filed:
Nov. 06, 1975
Applicant:
Inventor:
Thomas R Blakeslee, Woodside, CA (US);
Assignee:
Logisticon, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
180 98 ; 318587 ;
Abstract
An automatic guidance device for a self-powered cargo-moving vehicle is operated by a vehicle-borne sensor which follows a buried, energized wire path and includes a circuit which first switches on the automatic guidance circuit when the vehicle is heading away from the wire after it has either passed over the wire or has closely approached the wire. At all other times the vehicle is power steered through the guidance circuit under the operator's control.