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. 25, 1997
Filed:
Jun. 07, 1995
Seiji Takei, Kanagawa-ken, JP;
Nippon Thompson Co., Ltd., Tokyo, JP;
Abstract
The present invention relates to a linear encoder that does not require the connection cable to be pulled around and has a simple constitution, while also contributing to smooth operation of the moving side as well as reduced size of the apparatus. In addition, the present invention also relates to a guide wherein a guiding device composed of a track rail and so forth is added to the linear encoder. In addition to arranging a plurality of detecting elements composed of electromagnetic conversion elements and so forth at prescribed intervals along the direction of relative motion on the stationary side, a detected element composed of a permanent magnet is arranged so as to oppose the above-mentioned detecting elements on the moving side, thus obtaining the above-mentioned effects.