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:
Dec. 08, 1992
Filed:
Mar. 25, 1991
Applicant:
Inventors:
Marcel Bongart, Aviron, FR;
Gerard Lecoeur, Evreux, FR;
Assignee:
Solex, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; B21D / ;
U.S. Cl.
CPC ...
137 15 ; 137315 ; 29407 ; 2988846 ; 29890124 ; 251308 ;
Abstract
A method and device are disclosed for fitting a shaft-butterfly valve unit in a pipe formed by a butterfly valve body. The device comprises a frame receiving the pipe with its unit. It also comprises a first thruster for moving the shaft in a first direction as far as the first abutment position and a second thruster for moving the shaft in the opposite direction as far as the second abutment position. A sensor detects the abutment positions, and the gap (j) between the abutment positions is computed. The first or second motor is controlled for moving the shaft from the first or second abutment position by a distance equal to a predetermined fraction of the gap.