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:
Apr. 18, 1978
Filed:
May. 17, 1976
Applicant:
Inventor:
Peter Happe, Eggenstein, DT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
13762528 ; 251D / ;
Abstract
A cutoff device for pipelines has a unilaterally clamped flexible closure strip which can be unrolled onto a valve seat wall which is provided with through-flow openings. A roll is provided upon which the flexible closure strip is rolled and from which the strip is unrolled, the winding roll being so disposed as to be displaceable back and forth along the surface of the valve seat wall. The winding roll is tensioned so as to insure proper displacement of the flexible closure strip onto and off the roll and off and over the through-flow openings.