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. 20, 2011
Filed:
Apr. 19, 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 dispensing unit, particularly suitable for a liquid container, comprising an air pump with an air cylinder and an air piston (), wherein an air chamber () is defined between the air cylinder and the air piston, a liquid pump with a liquid cylinder and a liquid piston (), wherein a liquid chamber () is defined between the liquid cylinder and the liquid piston. An axially displaceable activating element () for activating the pumps, and upper edge () of air piston () for closing air supply to the air pump, and an oblique wall () of activating element () for closing air discharge from the air pump. The air piston and the liquid piston are movable in axial direction relative to the activating element in order to close air supply to the air pump and close air discharge from the air pump.