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:
Aug. 30, 2011
Filed:
Mar. 12, 2007
Peter Stadelhofer, Singen, DE;
Juergen Greiner-perth, Gottmadingen, DE;
Miro Cater, Daytona Beach, FL (US);
Peter Stadelhofer, Singen, DE;
Juergen Greiner-Perth, Gottmadingen, DE;
Miro Cater, Daytona Beach, FL (US);
Ing. Erich Pfeiffer GmbH, Radolfzell, DE;
Abstract
A discharger for a flowable medium, having a pumping device with a pumping chamber which is closed off on one side by a longitudinally movable piston, is provided. The pumping chamber on the piston side is hermetically sealed against an environmental atmosphere outside the discharger by a gas-impermeable and at least partially flexible diaphragm, and the diaphragm, in its marginal region, is fixedly connected to a housing of the discharger. The discharger is used for high sealing requirements against the ingress of impurities.