Method and device for controlling the switching movement of...

Valves and valve actuation – Electrically actuated valve – Remote or follow-up control system for electrical actuator

Reexamination Certificate

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Details

C137S554000, C137S556000, C137S614180, C251S284000

Reexamination Certificate

active

07032878

ABSTRACT:
A method for the control of the switching operation of a valve by the fact that the two end positions and the intermediate position(s) of the valve are clearly determined each by the valve rod(s) bearing directly or indirectly on fixed position limiters, the fixed position limiters each are moved to in the course of the first switching operations of the valve, and the respective fixed position messages resulting therefrom are stored.

REFERENCES:
patent: 4344453 (1982-08-01), Tuchenhagen et al.
patent: 5704586 (1998-01-01), Nielsen
patent: 5771926 (1998-06-01), Medal et al.
patent: 6360773 (2002-03-01), Rhodes
patent: 2 194 648 (1988-03-01), None
patent: 90/15948 (1990-12-01), None
patent: 96/10731 (1996-04-01), None
Journal dei Jan.-Feb. 2001, p. 14.
Journal Cit/plus/Apr. 2001, pp. 42 through 46.
Journal Brauwelt No. 46/47 (2000), pp. 2018 through 2023.

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