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. 19, 2019
Filed:
Nov. 03, 2015
Nederman Holding Ab, Helsingborg, SE;
Piotr Balcarczyk, Bytom, PL;
Nederman Holding AB, Helsingborg, SE;
Abstract
The present invention relates to a back pressure flap valve arrangement () comprising a housing () having an inlet opening () and an outlet opening (). A flap () is pivotably hinged about a shaft () extending transverse a flow direction through the housing (). A lever () is rigidly connectable to the shaft () and forming an angle thereto. The lever () has a stop face () arranged at a distance from the connection between the lever () and the shaft () such that the stop face () is arranged to move along an arc shaped path when the flap () pivots about said shaft (). The arrangement () further comprises a stopper () having a slot () having an open end () and a longitudinal extension along a center line (CL) of the slot (). The stopper has a first deformation zone () along a first side of the slot and a second deformation zone () along a second side of the slot, opposite the first side of the slot. The slot () is arranged to receive the stop face () and allow the stop face () to move in the slot () in the longitudinal extension thereof while engaging said first and second deformation zones ().