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:
Apr. 30, 2013
Filed:
Nov. 07, 2006
Markus Fransicus Brouwer, Heesch, NL;
Markus Fransicus Brouwer, Heesch, NL;
MeadWestvaco Calmar Netherlands BV, Richmond, VA (US);
Abstract
The invention relates to a dispenser unit particularly suitable for a liquid container, including 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 structure for closing the air supply to the air pump, discharge-closing structure for closing the air discharge from the air pump, an axially displaceable activating element for activating the air pump, and an air inlet opening in the activating element, wherein the air inlet opening debouches in the air space, and at least a part of the air piston forms the supply-closing structure.