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:
Feb. 05, 2002
Filed:
Oct. 19, 1999
Gilles Baudin, Domont, FR;
Philippe Bonningue, Paris, FR;
L'Oreal, Paris, FR;
Abstract
A metering end-fitting ( ) has a metering chamber ( ) inside which a piston ( ) is slidably mounted, the piston being mounted so as to be able to pass from a first position in which the metering chamber ( ) has a maximum volume to a second position in which the metering chamber ( ) has a minimum volume. The metering chamber has at least one inlet passage ( ) which is open when the piston ( ) is in the first position and substantially closed when the piston ( ) is in the second position, the piston ( ) being coupled to a closure element ( ) which, in the first position of the piston ( ) substantially closes off at least one outlet passage ( ) in the metering chamber ( ) and frees the outlet passage ( ) when the inlet passage ( ) is closed. The closure element ( ) moves with a shorter travel than the travel of the piston ( ).