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:
May. 20, 2003
Filed:
May. 07, 2002
Akira Arisato, Kobe, JP;
Kabushiki Kaisha Kosmek, Hyogo, JP;
Abstract
A socket (A) includes a first flow passage ( ) which is provided with a first closure member ( ) and a first check member ( ). And a plug (B) includes a second flow passage ( ) which is provided with a second closure ember ( ) and a second check member ( ). The second check member ( ) comprises a larger-diameter member ( ) and a smaller-diameter member ( ). A first cylindrical filter ( ) is arranged on an outer periphery of the first closure member ( ). A second cylindrical filter ( ) is arranged on an outer periphery of the first check member ( ). A third cylindrical filter ( ) is arranged on an outer periphery of the second closure member ( ). Each of the cylindrical filters ( ), ( ) and ( ) comprises an inner perforated sheet ( ), a screen ( ) and an outer perforated sheet ( ) arranged in the mentioned order from an interior area.