Method for the production of an electronically controlled...

Details Method for the production of an electronically controlled... Method for the production of an electronically controlled...

2007-10-02

2007-10-02

Bastianelli, John (Department: 3753)

Fluid handling

Processes

Cleaning, repairing, or assembling

C123S399000

Reexamination Certificate

active

10939968

ABSTRACT:
A method for the production of a butterfly valve which comprises a valve body housing a valve seat engaged by a butterfly disc keyed on a shaft in order to rotate under the action of an electric motor, the shaft being coupled to an inductive position sensor of the “contact-free” type provided with a rotor which is rigid with the shaft and is housed in a chamber of the valve body, and a stator which is borne by a detachable cover adapted to close the chamber and is disposed, in operation, facing the rotor, the method comprising the coupling of the rotor to the shaft, the mounting of the stator on the cover, the completion of any remaining machining operations on the butterfly valve, the coupling of the cover to the valve body in order to close the chamber in a substantially permanent manner, and the calibration of the position sensor by disposing the shaft in a sequence of predetermined positions.

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patent: 2003/0024505 (2003-02-01), Anschicks et al.
patent: 2004-3421 (2004-01-01), None

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