Importance

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Abstract

An actuator (10) and adapter (16,116), in particular with an electric motor (60), and a highly reduced gearing (48), is used for transmitting a torque to a continuous drive shaft (24) of at least one flap or at least one valve to control a gas or liquid volume flow. The adapter (16,116) which is used in particular in the sector of heating/ventilation/air-conditioning (HVAC), fire and space protection can be fitted in a manner which is locked against rotation in the radial direction to a frame or support of the actuated member. With the drive shaft (24,124) it forms a releasable frictional and/or positive connection. The actuator is preferably actuated by an electric actuator motor but also pneumatically, hydraulically or manually. The actuator (10) and adapter (16,116) can optionally be used as a bridging drive.

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First Claim