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. 18, 1998
Filed:
Mar. 19, 1997
Toshio Nagata, Tokyo, JP;
Jinichi Akayama, Tokyo, JP;
Other;
Abstract
The invention provides a power transmission apparatus which includes a power transmission shaft having a pair of universal joints provided at the opposite ends thereof, and a torsion detection apparatus for detecting a torsion of the power transmission shaft when the power transmission shaft is acted upon by a rotating force. The torsion detection apparatus includes a pair of rotatable members mounted on the power transmission shaft for rotation together with the power transmission shaft and a detection means. The rotatable members have at least one pair of opposing portions which are opposed to each other in a spaced relationship from each other around the power transmission shaft, and the detection means includes a sensor mounted on one of the opposing portions of the rotatable members for detecting an approach of the other opposing portion to the one opposing portion.