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:
Oct. 23, 2007
Filed:
Jan. 12, 2005
Robert Käch, Sursee, CH;
Christian Kissling, Fulenbach, CH;
Robert Käch, Sursee, CH;
Christian Kissling, Fulenbach, CH;
KNF Flodos AG, Sursee, CH;
Abstract
A plate valve, especially for diaphragm pumps, having a valve plate (), a valve seat (), and a valve chamber bounded by a valve housing is provided, with the valve plate being held at the edges thereof. The valve plate () is preset under tension elastically in the installation position between outer edge holding devices, with the elastic pretensioning being at least large enough that deformations due to edge clamping can be compensated. Preferably, the valve plate () is held at the edge in a positive fit and is preset under tension elastically between its outer edge holding devices in the installation position.