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. 01, 2009
Filed:
Nov. 30, 2004
Tetsuya Ishihara, Komaki, JP;
Tetsuya Ishihara, Komaki, JP;
CKD Corporation, Komaki, JP;
Abstract
A connection seal structure for a chemical valve () in which a resin manifold base () and a resin valve assembly () are connected to each other includes an H-shaped resin ring () interposed between a connection portion () of the base () and a connecting portion () of the valve assembly (). The connecting portion () of the base () and a corresponding portion of the H-shaped ring () are formed with groove-ridge lines () respectively, which engage with each other in a groove-ridge relationship. The connecting portion () of the valve assembly () and a corresponding portion of the H-shaped ring () are formed with groove-ridge lines () respectively, which engage with each other in a groove-ridge relationship. At least one of the groove-ridge lines () and at least one of the groove-ridge lines () are provided with press-fit allowances in a direction of wall-thickness of each groove-ridge line (-).