Patent Number: 6,308,866

Title: Foam forming liquid dispensing device

Abstract: A foam dispensing apparatus of the present invention includes a reservoir containing a foamable liquid, with a closed headspace above a surface of the liquid. The apparatus also includes a source of a gas disposed to impose a gas pressure higher than ambient atmospheric pressure into the closed headspace. There is a mixing chamber having an inside diameter, an inlet and an outlet open to the ambient atmosphere with a flow restricter having a plurality of openings therein in gaseous communication with the closed headspace. The foam dispensing apparatus also includes a hydrophobic filter.

Inventors: Hoang; Minh Quang (Taylorsville, UT), Burkholz; Jonathan Karl (Salt Lake City, UT), Hunt; Donald Edward (Provo, UT)

Assignee: Becton, Dickinson and Company

International Classification: A47K 5/00 (20060101); A47K 5/14 (20060101); H04N 7/26 (20060101); B67D 005/58 ()

Expiration Date: 10/30/2018