The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2021
Filed:
Apr. 06, 2018
Auma Riester Gmbh & Co. KG, Mullheim, DE;
AUMA Riester GmbH & Co. KG, Müllheim, DE;
Abstract
In order to increase the operational safety of an actuator () including an electric motor () and a transmission, preferably a non-self-locking transmission (), a braking device is provided which allows the controlled, self-actuating displacement, by a retarding brake (), of an actuating element connected to the actuator () via the transmission (). The actuating element can be held in a fixed position by an additional holding device (), even if the electric motor () fails. The actuator can be used to drive heavy sluice gates, in the event of a power failure, in a controlled free-fall operation at a constant rate of fall, or to hold them in a defined position. The holding device and the retarding brake can be combined in a common housing () to form a braking module () which can be designed to be used modularly with existing motor actuators and transmissions.