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:
Apr. 26, 2011
Filed:
Nov. 19, 2004
Frank Lehnert, Ruti, CH;
Frank Lehnert, Ruti, CH;
Belimo Holding AG, Hinwil, CH;
Abstract
The invention relates to a device () for controlling airflow (A) in a ventilation pipe () comprising one or several air throttle () which are synchronously actuated and prevent air flowing (A) in the air pipe in the closed position thereof. The ventilation pipe () is provided with a longitudinally extending fixing bar () which is arranged on a symmetry plane and provided with the pivot bearing () of an axis () for driving the air throttle(s) () and means () for transmitting a force and/or torque to the drive axis () connected to the air throttle(s) (). Said fixing bar () provided with different air throttles () is usable for the ventilation pipes having different cross sections and forms, an angle (β), preferably, ranging from 15° to 90°, with a longitudinal axis (L) or with a wall () of said ventilation pipe ().