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:
Jun. 02, 2020
Filed:
Sep. 26, 2017
Dräger Safety Ag & Co. Kgaa, Lübeck, DE;
Christian Wilhelm, Lübeck, DE;
Stefan Effmann, Lübeck, DE;
Dräger Safety AG & Co. KGaA, Lübeck, DE;
Abstract
A directional valve () includes a valve housing (), a plurality of valve flaps (-), which can be moved by a gas stream or by a flowing medium and are arranged at the edge, and a number of support surfaces (-) as a valve seat. A number of support surfaces (-) corresponds to a number of valve flaps (-). Each valve flap (-) is adapted to a surface of a respective support surface (-). The support surfaces (-) are sloped in relation to a cross-sectional surface through the valve housing (). The support surfaces (-) together form a tip pointing in the flow direction of the directional valve (). A method for manufacturing such a directional valve () is provided including method features relating to the use of such a directional valve ().