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:
Oct. 23, 2012
Filed:
Feb. 06, 2007
Edgar Ivo Maria Van Der Heijden, Broek Op Langedijk, NL;
Edgar Ivo Maria van der Heijden, Broek Op Langedijk, NL;
Rexam Airspray N.V., Alkmaar, NL;
Abstract
A foam dispensing device uses a single actuator to actuate two concentric pistons, one for an air chamber and one for a telescopically oriented liquid chamber. In all of the various embodiments the liquid chamber stops its actuation first and can continue to move along with the single actuator and the air chamber continues to dispense air. The air and liquids are dispensed into foaming chamber and then dispensed. The liquid chamber can continue to move because the liquid chamber is attached to the pump system by a deformable connector or some form. This arrangement allows for a foaming device that uses just one actuator that has the ability to dispense foam in the first phase and just air to clear out the nozzle effectively in the second phase.