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:
Jul. 25, 2006
Filed:
Nov. 04, 2003
Kenichi Iwamoto, Shizuoka, JP;
Takashi Koike, Shizuoka, JP;
Kazuyuki Inokuchi, Shizuoka, JP;
Motoharu Niki, Osaka, JP;
Kenichi Iwamoto, Shizuoka, JP;
Takashi Koike, Shizuoka, JP;
Kazuyuki Inokuchi, Shizuoka, JP;
Motoharu Niki, Osaka, JP;
NTN Corporation, Osaka, JP;
Abstract
A piston rod position detecting mechanism is proposed which can detect continuously or in a multiple-point manner that the piston rod position has changed due to increase or decrease in the protruding amount of the piston rod due to aging. The protruding amount from a cylinder end wall is detected by a position detecting mechanism comprising a detecting coil housed in a bobbin provided at the cylinder end, a flange portion formed on the piston rod, and a coil spring. Also, an autotensioner and an electromagnetic valve with such a position detector are proposed. Further, a belt tension adjusting device is provided with a detector for detecting the position of a tension pulley which is pivotable with increase or decrease in the belt tension.