| US 7,615,122 B2 | ||
| Method and apparatus for dispensing a use solution | ||
| Richard J. Mehus, Richfield, Minn. (US); and Charles A. Hodge, Cottage Grove, Minn. (US) | ||
| Assigned to Ecolab Inc., St. Paul, Minn. (US) | ||
| Filed on Aug. 18, 2005, as Appl. No. 11/206,618. | ||
| Claims priority of provisional application 60/676899, filed on May 02, 2005. | ||
| Prior Publication US 2006/0243743 A1, Nov. 02, 2006 | ||
| Int. Cl. B08B 3/00 (2006.01) | ||
| U.S. Cl. 134—36 [134/100.1; 134/99.2; 417/182; 68/17 R; 68/207; 137/893; 137/895; 22/1; 22/133; 239/310; 239/410] | 11 Claims |
| 1. A method of dispensing a liquid concentrate from a dispenser for a laundry based application, comprising:
(a) providing a supply of liquid diluent at a source pressure;
(b) increasing the source pressure to an elevated pressure, the elevated pressure is a differential pressure of 50 psig or
more;
(c) passing the liquid diluent at the elevated pressure through a diluent inlet port of an aspirator;
(d) placing a first liquid product in fluid communication with a first product inlet port; and
(e) dispensing a first use solution from a mixture of the liquid diluent and the first liquid product, wherein the first use
solution has a given concentration independent of the source pressure.
|