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:
Apr. 30, 2013
Filed:
Sep. 10, 2008
Edgar Ivo Maria Van Der Heijden, Broek Op Langedijk, NL;
Peter Jozef Jan Albertz, Haarlem, NL;
Sylvia Boshuizen, Leiden, NL;
Marcus Cornelis Jacobus Tepas, Callantsoog, NL;
Casper Kleiman, Alkmaar, NL;
Edgar Ivo Maria van der Heijden, Broek Op Langedijk, NL;
Peter Jozef Jan Albertz, Haarlem, NL;
Sylvia Boshuizen, Leiden, NL;
Marcus Cornelis Jacobus Tepas, Callantsoog, NL;
Casper Kleiman, Alkmaar, NL;
Rexam Airspray N.V., Alkmaar, NL;
Abstract
The present invention provides a foam dispensing assembly comprising a liquid piston pump, comprising a liquid cylinder and a liquid piston delimiting a liquid pump chamber, and a liquid inlet and outlet, an air piston pump comprising an air cylinder and an air piston delimiting an air pump chamber, and an air inlet and outlet, a common actuation button for actuation of said liquid pump and said air pump, a dispensing channel for mixing and dispensing liquid and air pumped by said liquid and air pump, respectively, and a securing collar for attachment of said dispensing assembly to a container. The invention is characterized in that said air cylinder is formed by a cylindrical skirt of said actuation button, and said air piston is at least partially formed by a cylindrical extension of said securing collar and in that said air chamber at least partially surrounds said liquid chamber.