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:
Nov. 10, 1981
Filed:
Apr. 16, 1979
Applicant:
Inventor:
John H Miller, Manitowic, WI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ; B23B / ;
U.S. Cl.
CPC ...
138 89 ; 138 94 ; 137 15 ; 137318 ;
Abstract
An emergency pipeline shut-off apparatus for interpositioning within a fluid transmitting pipe circuit in which a resilient plug stopper is capable of alternative placement between an open and closed position to allow or block passage of the fluid respectively. Remote stopper activation elements cooperate with control members and locking features to position the stopper in the desired open or closed configuration followed by the automatic locking of the stopper in that particular position. The remote stopper control device can be expressly reactivated to be withdrawn from its locked position.