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:
Sep. 03, 2002
Filed:
Feb. 26, 2001
Kazuo Shiraiwa, Tokyo, JP;
Shin-ichi Waku, Tokyo, JP;
Masamichi Tawara, Hiroshima, JP;
Yuichi Nishimura, Hiroshima, JP;
Elmex Limited, Tokyo, JP;
Abstract
Disclosed is a membrane filter system comprising an integral plastic holder ( ) having a filter receiving section ( ) for receiving a membrane filter ( ) that collects target microorganism contained in sample solution, a funnel mount ( ) positioned at a level higher than the filter receiving section for carrying thereon a cup-shaped paper funnel ( ) adapted to receive the sample solution, and a drainage ( ) communicated with the filter receiving section. The funnel has a bottom sheet or a paper filter ( ) and a bottom peripheral flange ( ) surrounding the bottom sheet. Resin seal means ( ) is fitted to the funnel mount to provide liquid-tight engagement between the funnel and the holder. The bottom sheet of the funnel is positioned above the membrane filter and serves as a primary filter for collecting particles in the sample solution larger than the target microorganism before the sample solution reaches the membrane filter.