Actuating device

Details Actuating device Actuating device

2007-02-06

2007-02-06

Yu, Justine R. (Department: 3751)

Valves and valve actuation

Electrically actuated valve

Rotary electric actuator

Reexamination Certificate

active

10415419

ABSTRACT:
An actuating device for regulating a control mechanism which is subject to a force against the direction of regulation. The actuating device includes a drive device which has a drive shaft and is connected in a moveable manner to a rotating spindle, by which means an actuating element can be axially displaced in the direction of regulation, in a housing receiving the device. The aim of the invention is to improve one such actuating device in such a way that actuation of the control mechanism is guaranteed in a constructively simple and cost-effective manner. In order to achieve this, the drive device comprises at least two electric motors which can respectively be actuated and controlled for the rotation of the drive shaft.

REFERENCES:
patent: 2387800 (1945-10-01), Leland et al.
patent: 3083423 (1963-04-01), Hartley
patent: 4179944 (1979-12-01), Conner
patent: 4199132 (1980-04-01), deMey, II
patent: 5195721 (1993-03-01), Akkerman
patent: 5649451 (1997-07-01), Ruland
patent: 5879597 (1999-03-01), Urbanek
patent: 6047104 (2000-04-01), Cheng
patent: 6095487 (2000-08-01), Waber
patent: 1024422 (2000-08-01), None
patent: WO 98/30816 (1998-07-01), None

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