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. 13, 2001
Filed:
Jul. 12, 1999
Valois S.A., Le Nebourg, FR;
Abstract
A device enabling a fluid dispenser to operate both in the upside-down position and in the rightway-up position, the dispenser comprising a fluid tank, and a dispenser member having an inlet and a dip tube, said device having a chamber in communication with said inlet of the dispenser member, said chamber having a top inlet and a bottom inlet that are selectively closable by respective top and bottom check valves, the top check valve having a moving valve element suitable for closing the top inlet of the chamber in the rightway-up position, wherein the bottom check valve has a moving valve element that floats, being of a density that is lower than the density of the fluid, and being adapted to close the bottom inlet of the chamber in the upside-down position when the chamber is filled with the fluid.