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:
Dec. 07, 2010
Filed:
Apr. 01, 2006
Jens Burmester, Grambek, DE;
Matthias Südel, Ratekau, DE;
Jens Burmester, Grambek, DE;
Matthias Südel, Ratekau, DE;
Tuchenhagen GmbH, Büchen, DE;
Abstract
A double seat valve in which a second closing element (), in its closed position, rests with a stopping surface () on a face of its cylindrical projection () directly upon a first seat () and, together with a peripheral wall (), forms a second wraparound edge (U) upon an interface (*). The peripheral wall (), at its end facing away from a first closing element (), merges into a rotationally symmetric reversing surface () that leads to a face () of a recess () oriented essentially perpendicular to the longitudinal axis of the second closing element (). In meridian section, the reversing surface () has a contour (K) with a bend-free curve, a direction vector in the leading point of the reversing surface () points into a discharge borehole (*) central in the first closing element () without colliding with the first closing element () in the vicinity of its areas bordering the leakage cavity () and forming dynamic pressure.