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:
May. 01, 1990
Filed:
Feb. 22, 1989
Applicant:
Inventor:
Jiro Masuda, Kobe, JP;
Assignee:
Fujitsu Ten Limited, Kobe, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
180178 ; 123352 ;
Abstract
Fail-safe circuit for a constant speed drive apparatus which inhibit constant speed drive control when abnormality occurs in the constant speed drive apparatus. Thus trouble occurs in the fail-safe circuit itself, constant speed drive control is inhibited so that fail-safe operation can be positively performed. When the trouble occurs constant speed drive control is automatically inhibited. Thereby higher safety in the constant speed drive can be obtained.