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:
Jan. 18, 2000
Filed:
Dec. 04, 1997
Applicant:
Inventors:
Jean-Claude Schmitz, Heisdorf, LU;
Leon Kerger, Helmdange, LU;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ; F16K / ;
U.S. Cl.
CPC ...
137315 ; 16441 ; 74548 ; 74553 ; 251214 ; 251291 ; 251292 ; 403 17 ; 403361 ;
Abstract
The valve comprises an operating wheel connected by a connecting rod to an opening and closing member. The valve is sealed by a stuffening box fixed into the upper part of the body around the rod. The stuffening box has a polygonal head so that it can be screwed and unscrewed. However the head is not accessible using a conventional spanner so as to prevent a non-specialist form slackening of the stuffing box and avoid him risking an accident.