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. 04, 2011
Filed:
Apr. 20, 2006
Markus Franciskus Brouwer, Heesch, NL;
Markus Franciskus Brouwer, Heesch, NL;
MeadWestvaco Calmar Netherlands B.V., Richmond, VA (US);
Abstract
The invention relates to a dispenser, particularly suitable for a liquid container, comprising: an air pump with an air cylinder () and an air piston () axially displaceable in the air cylinder, an air space () defined between the air cylinder and the air piston, supply-closing means () for closing the air supply to the air pump, discharge-closing means for closing the air discharge from the air pump, a cover () connected to the air piston, an air inlet opening () in the cover, wherein the air inlet opening debouches directly into the air space, and an annular element () which extends axially on the inside of the cover and which comprises an edge part, which edge part is in contact with at least the part of the inner wall of the cover located around the air inlet opening ().