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. 09, 1982
Filed:
Jun. 25, 1980
Applicant:
Inventors:
Yasuteru Tahara, Otake, JP;
Kazuyoshi Koike, Otake, JP;
Assignee:
Mitsubishi Rayon Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01M / ;
U.S. Cl.
CPC ...
73 377 ; 73160 ; 356237 ;
Abstract
A method of and a system for detecting pinholes in hollow fibers by passing a liquid filled fiber into a zone of pressurized gas wherein the pressure of a gas is higher than that of a liquid inside the hollow fiber so that bubbles may be injected through pinholes contained in said hollow fiber and then passing the fiber through a bubble detector. The system can be operated continuously with the pinhole detector being between a device for continuously feeding the hollow fiber and a device for winding up said hollow fiber.