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. 17, 2009
Filed:
Apr. 08, 2004
Marc Ramet, Asnieres, FR;
Marc Ramet, Asnieres, FR;
L'Oreal, Paris, FR;
Abstract
A pump for fixing on a receptacle includes: a stationary portion including a pump body; a moving assembly movable relative to the pump body and co-operating therewith to define a variable-volume pump chamber; an opening in the pump body that enables the pump chamber to communicate with the inside of the receptacle and enables the pump to operate in a head-down position; an air intake passage, distinct from the opening, between the stationary portion and the moving assembly; a first lip configured to press in a leaktight manner against the pump body and to prevent communication via the opening between the inside of the receptacle and the pump chamber; and a second lip arranged, at least when the moving assembly is in an end-of-stroke position, to prevent communication through the inside of the pump body and via the opening between the inside of the receptacle and the outside.