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:
Nov. 06, 1990
Filed:
Jun. 23, 1989
Applicant:
Inventors:
Seiichiro Hagino, Chiryu, JP;
Tsukasa Ando, Toyoyama, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Primary Examiner:
Int. Cl.
CPC ...
D05B / ; G01J / ;
U.S. Cl.
CPC ...
112272 ; 112277 ; 250205 ;
Abstract
An apparatus for detecting a stepped portion between an upper cloth and a lower cloth on which the upper cloth is mounted, including a light-emitter for transmitting light to a light receiver. The stepped portion is detected based on a decrease in light received by the light receiver. In order to assure detection of the stepped portion, an optimum amount of light to be emitted from the light-emitter is determined so that a deviation between a transmissivity of the lower cloth and a transmissivity of both cloths arranged in a layered configuration may be maximized.