Title:
VACUUM PRIME FOAM PUMPS, REFILL UNITS AND DISPENSERS
Document Type and Number:
WIPO Patent Application WO/2014/193885
Kind Code:
A3
Abstract:
Exemplary embodiments of foam pumps, refill units and dispenser systems are disclosed herein. Some embodiments have a foam pump that includes a chamber having a liquid inlet, a vacuum outlet, a pressurized air inlet and a liquid air mixture outlet. The exemplary foam pump includes a liquid inlet valve located in fluid communication with the liquid inlet to allow liquid to enter the chamber and to prevent liquid from exiting the chamber through the liquid inlet. Vacuum pressure applied to the vacuum outlet causes fluid to flow through the liquid inlet, past the liquid inlet valve and into the chamber. Pressurized air flows through the pressurized air inlet and mixes with the liquid and the liquid air mixture is forced out of the liquid air mixture outlet. The foam pump includes a mix media in fluid communication with the liquid air mixture outlet. The liquid air mixture flows through the mix media and flows through an outlet to be dispensed as a foam.
Inventors:
CIAVARELLA NICK E (US)
GALLO MICHAEL J (US)
GALLO MICHAEL J (US)
Application Number:
PCT/US2014/039662
Publication Date:
March 12, 2015
Filing Date:
May 28, 2014
Export Citation:
Assignee:
GOJO IND INC (US)
International Classes:
B05B7/00; A47K5/14; B05B7/26; B05B12/00
Domestic Patent References:
| WO2012154642A1 | 2012-11-15 |
Foreign References:
| US20120267396A1 | 2012-10-25 | |||
| EP2135538A1 | 2009-12-23 |
Attorney, Agent or Firm:
BONNER, Chet, J. (Halter & Griswold LLPThe Calfee Building,1405 East Sixth Stree, Cleveland OH, US)
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