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. 06, 2015
Filed:
Aug. 23, 2011
Laurent Decottignies, Cergy, FR;
Antoine Lamuré, Bosguerard de Marcouville, FR;
Laurent Decottignies, Cergy, FR;
Antoine Lamuré, Bosguerard de Marcouville, FR;
APTAR FRANCE SAS, Le Neubourg, FR;
Abstract
A fluid dispenser comprising a fluid reservoir () and a dispenser member (), the reservoir () comprising a slide cylinder () that is cylindrical, and a follower-piston () that includes at least one lip () that is in sliding contact with the cylinder (), the slide cylinder () being provided with a bottom (), an equalizing space (E) being formed between the follower-piston () and the bottom (), this space (E) communicating with the outside so as to keep the space (E) at atmospheric pressure, such that, each time fluid is dispensed, outside air penetrates into the space (E), which increases as the follower-piston () moves away from the bottom (); the dispenser being characterized in that a bacterial filter (F) filters outside air coming into contact with the lip () of the follower-piston () through the equalizing space (E).