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. 12, 2002
Filed:
Mar. 15, 1999
Claude-Georges Martin, Yville, FR;
Ludovic Petit, Vitot, FR;
Valois S.A., Le Neubourg, FR;
Abstract
A dispenser device for dispensing a single dose of liquid, the device comprising: a cylinder ( ) containing said dose of liquid; a piston ( ) which slides in sealed manner in said cylinder ( ) between a storage position in which it isolates said cylinder and an actuated position; a piston actuator member ( ); and an outlet passage ( ) for connecting said cylinder ( ) to an outlet orifice ( ); the device being characterized in that said piston ( ) includes a through-passage ( ) which is closed in sealed manner in the storage position of the piston ( ) by a closure member ( ), said closure member being designed to open said through-passage ( ) under the effect of a predetermined pressure which is created inside the cylinder ( ), so as to enable said dose of liquid to be expelled through said through-passage ( ).