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:
Feb. 12, 1985
Filed:
Feb. 22, 1982
Fujio Makita, Hachioji, JP;
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An electromagnetic clutch has a drive member secured to a crankshaft of an internal combustion engine, and a driven member adjacent to the drive member. The system comprises a circuit for detecting the difference between numbers of revolutions of the drive member and driven member, a comparator for producing an output when the difference is higher than a reference value, a timer operated by the output of the comparator, and a warning device such as a buzzer operated by the signal from the timer when a predetermined time elapses. Thus, when the clutch slips, the warning signal is generated. Further, a circuit for changing clutch engaging characteristics is provided to be operated by the output of the comparator for preventing the overheating of the clutch.