Drive device

Valves and valve actuation – Rotary valves – Butterfly

Reexamination Certificate

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Details

C123S396000, C123S399000

Reexamination Certificate

active

06926252

ABSTRACT:
A drive device enabling a movable element to be driven by an actuator via a gear system comprising a motor pinion gear, an intermediate gear and a partial toothed gear. An aim of the invention is to create a particularly compact device which can capture the kinetic energy of the actuator in a particularly reliable manner. The intermediate gear comprises a pinion and a toothed gear. The pinion and toothed gear are connected via a ratchet in such a way that the opinion which is rotationally fixed to the ratchet can be rotated counter to the toothed wheel in a manner similar to that of a locking ratchet wheel.

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XP-002222544; Matshushita Denki Sangyo K.K.; JP.
English translation of Patent Documentation DE 820 659; Sep. 27, 1951; Telefonbau und Normalzeit GmbH; D-Frankfurt.
Derwent-Abstract DE 19736521A1; Feb. 25, 1999; Mannesmann VDO AG, D-60388 Frankfurt.
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Derwent-Abstract DE 19842195A103/16/2000; Deutsche Thomson-Brandt GmbH; D-78048 Villingen-Schwenn.

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