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:
Mar. 24, 2015
Filed:
May. 26, 2009
Gisbert Welp, Sundern, DE;
Gisbert Welp, Sundern, DE;
MeadWestvaco Calmar GmbH, Richmond, VA (US);
Abstract
Fluid discharge head having a discharge nozzle () which has a discharge opening () in which an inner sleeve () is arranged, which has a medium duct () and holds a spring-loaded valve body () automatically closing the discharge opening (), the valve body () being formed as a cylindrical piston, which can be displaced axially in a cylinder chamber () formed by the inner sleeve (), an upper () and a lower valve seat () being provided for the piston ends (), and the valve body () having an intermediate valve plate (), which forms a chamber bottom of a pressure chamber () connected to the medium duct (), and, in order to open the upper valve seat (), a medium discharge pressure which is higher than a spring force holding the valve body () closed can be set in the pressure chamber.