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:
Apr. 24, 1990
Filed:
May. 09, 1988
Jia-Ming Shyu, Hsin Chu Hsien, TW;
Chih-Li Chang, Hsin Chu Hsien, TW;
Industrial Technology Research Institute, Hsin Chu Hsien, TW;
Abstract
An automatic working vehicular system comprises a guiding signal device and an automatic working vehicle which has a power source, driving devices, detecting devices and control devices. By means of a guide wire device for limiting the operational area, the vehicle can start at a preset time, travel from a position in a garage to a specific operation site, complete the required range of operation along a parallel reciprocating course of travel, and return to the garage. The vehicle also comprises devices to control the garage door, detect the fuel level, return itself to the garage when raining, adapt to load variations, change speed automatically, warn moving obstacles, detour obstacles, and prevent its theft.