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:
Jul. 07, 1981
Filed:
Mar. 10, 1980
Applicant:
Inventor:
Bernard Lourdeaux, Ismier, FR;
Assignee:
Neyrpic, Grenoble, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ; F03B / ;
U.S. Cl.
CPC ...
137613 ; 415151 ;
Abstract
A mechanism for a hydraulic pipe comprises two rotatable cut-off devices in series arranged inside two half-shells which are arranged symmetrically, relative to a mean transverse plane, and which are connected by being bolted together by their flanges. Each half-shell supports the journals of a cut-off device and an intermediate piece may be provided for supporting center gaskets. The mechanism is particularly applicable to the protection of turbines in a high-fall hydroelectric installation.