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. 01, 2012
Filed:
Nov. 13, 2008
Jorg Kuhne, Jona, CH;
Pino Pulli, Stafa, CH;
Urs Keller, Hinwil, CH;
BELIMO Holding AG, Hinwil, CH;
Abstract
The invention relates to a flow restrictor () for restricting a volume flow through a liquid line, said flow restrictor comprising a support () having a passage and a bent flat spring () attached to the support (). The flat spring () comprises at least one spring tab () and the passage at least one opening (), the spring tab () and the opening () having a substantially identical extension along a longitudinal direction. The spring tab () is designed and arranged above the opening () in such a manner that it increasingly rests against the support () with increasing differential pressure, thereby gradually making the opening () smaller and continuously reducing the passage within a defined pressure range. The dimensions of the opening () are adjusted corresponding to the size of the spring tab (), thereby allowing a compact flow restrictor () which is less susceptible to dirt. The continuous reduction of the passage allows an increase in vibration resistance of the flow restrictor ().