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. 15, 1977
Filed:
Mar. 23, 1976
Toshio Takahashi, Honjo, JA;
Toshiyasu Ehara, Misato, JA;
Ryosaku Tagaya, Isezaki, JA;
Mikio Tagaya, Isezaki, JA;
Eisai Co., Ltd., Tokyo, JA;
Abstract
An improvement of a method and an apparatus for detection of an extraneous solid substance which may exist in a transparent liquid wherein a sealed transparent container filled with the transparent liquid is rotated to cause rotation of the extraneous solid substance mixed and floated in the liquid. Light is projected through the container and the intensity of the light passed through said container is measured. The invention is characterized in that an optical fiber line-circle converter has its linear end formed into two or more straight files which may be set on the same or different level lines, respectively. The present method and apparatus can detect more precisely the extraneous substance moving in an irregular motion in the transparent liquid.