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:
Mar. 20, 2001
Filed:
Mar. 01, 1999
Applicant:
Inventor:
Lars Bunger, Schaffhausen, CH;
Assignee:
Georg Fischer Rohrleitungssysteme AG, Schaffhausen, CH;
Primary Examiner:
Int. Cl.
CPC ...
B23B 4/108 ; F16L 4/106 ; F16K 3/150 ; F16K 4/300 ;
U.S. Cl.
CPC ...
B23B 4/108 ; F16L 4/106 ; F16K 3/150 ; F16K 4/300 ;
Abstract
The invention relates to a valve self-piercing tap for a plastic tube with a plastic housing (,) which has a branch connection member (,) and holds a valve body (,), in which a blocking body (,) engaged with a threaded spindle (,) and carrying a punch ring (,) for forming an opening in the plastic tube is displaceably arranged to be moved into axial engagement with a valve seat (,) to block access to the branch connection member (,). To avoid sealing rings, the valve body has at least one circumferential groove (,) with a side (,) directed towards the outlet (,). The housing is injection-molded around the valve body.