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. 25, 1993
Filed:
Mar. 18, 1992
Applicant:
Inventor:
Reichi Makishima, Tokyo, JP;
Assignee:
Nitto Kohki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
2511496 ; 2511491 ; 141346 ; 141349 ;
Abstract
A coupler for sampling specimen comprises a socket having a central hole, a plug insertable in the central hole of the socket, formed therein with a fluid passage for communicating with the interior of the supplying pipe and having a fixed position at which the socket is fixed to said plug, and a valve provided in the plug, adapted to close the fluid passage at the fixed position and having a sampling position at which the valve opens the fluid passage.