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:
Nov. 20, 2018
Filed:
Jun. 19, 2012
Andreas Furrer, Wetzikon, CH;
Martin Ochsenbein, Russikon, CH;
Andreas Furrer, Wetzikon, CH;
Martin Ochsenbein, Russikon, CH;
BELIMO HOLDING AG, Hinwil, CH;
Abstract
The invention relates to a safety controller for an actuating drive () for controlling a gas flow or a liquid flow in an open-loop or closed-loop manner by means of a flap () or a valve, in particular in the field of heating, ventilation, and air conditioning (HVAC) systems, fire-protection systems, and/or room protection systems. A safety circuit () is implemented to ensure the energy supply in a safety operating mode if an electricity supply circuit () drops off or is lost. A control value output circuit () detects status signals, in particular signals of a sensor (), and/or status parameters of a system and/or a specifiable setting of an adjustment device that can be actuated manually. The safety control value is set to one of at least two different control values (SW, SW, . . . ) depending on the status signals so that the safety position of the flap is determined adaptively.