Liquid soap dispensing system

Details Liquid soap dispensing system Liquid soap dispensing system

1993-12-27

1995-08-08

Kashnikow, Andres

Dispensing

With filter

222207, 222209, 222482, B67D 542

Patent

active

054391440

ABSTRACT:
A liquid soap dispenser for dispensing repeated doses of liquid soap from an associated cartridge with a compressible outlet nipple without collapsing the side walls of the cartridge, the cartridge includes a blow molded thin walled plastic container with an externally threaded neck for connection to the compressible nipple and a wall. A receptacle is positioned in the wall of the cartridge having an aperture therein, and a plastic filter is in the receptacle having a sealing mechanism connected thereto movable between a sealing position wherein the sealing mechanism seals the aperture and a filtering position wherein the sealing mechanism is away from the aperture and the filter is in contact with the aperture establishing an air path between the inside and outside of the cartridge. The filter having an average pore diameter of about 0.25 microns and is compressed within the receptacle such that upon repeated activation of said pump member the vacuum inside said cartridge does not exceed 12" of water.

REFERENCES:
patent: 2138936 (1938-12-01), Osterberg
patent: 2812177 (1957-11-01), Butkus
patent: 3316908 (1967-05-01), Burke
patent: 4646945 (1987-03-01), Steiner et al.
patent: 4673109 (1987-06-01), Cassia
patent: 4886192 (1989-12-01), Cassia
patent: 4930667 (1990-06-01), Holzner, Sr.
patent: 4993601 (1991-02-01), Nakayama et al.
patent: 5082150 (1992-01-01), Steiner et al.
patent: 5174476 (1992-12-01), Steiner et al.

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