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:
May. 03, 2016
Filed:
Feb. 03, 2010
Philip Holoch, Neschwil, CH;
Marc Thuillard, Uetikon am See, CH;
Philip Holoch, Neschwil, CH;
Marc Thuillard, Uetikon am See, CH;
BELIMO Holding AG, Hinwil, CH;
Abstract
A drive apparatus () for a fire damper () having an electric drive (), which holds the fire damper in a normal position when power is supplied and moves it into a safety position when no power is supplied. A thermal contact breaker () interrupts the power supply to the drive () at a melt temperature. The drive apparatus () also has a temperature sensor () for measuring the air temperature (T), a gas sensor () for measuring the content (G) of fumes in the air, and a switch module (), which interrupts the power supply depending on the values of T and G. In the event of a fire, the fire damper can thus be moved into a safety position not only when the temperature in the region of the thermal contact breaker () is high, but already when smoke or gas develops as a result of the fire.