1980-10-02
1984-02-14
Scherbel, David A.
Dispensing
Combined
22240218, 252306, B65D 8314
Patent
active
044311206
ABSTRACT:
An aerosol dispensing system includes a container having a valve-controlled opening for dispensing the container contents, which include hydrocarbon-adsorbent solids such as silica, hydrocarbon propellant adsorbed on such solids, and a weight ratio of hydrocarbon propellant to adsorbent solids ranging up to about 65 parts by weight of the contents, and a liquid composition that may include water, organic oils, alcohols, dispersed and dissolved metals, and metal salts. Water-encapsulating silica permits use of water in aerosol compositions, but prevents mixing of water with other substances in the composition until the composition is dispensed as an aerosol. Aerosol systems including containers with a valve-controlled opening and a valve for dispensing the container contents benefit from the addition of a capillary dip tube extending from the valve into the container contents where the contents are highly viscous. The capillary dip tube increases the velocity of the contents, and keeps them cohesive during movement through the tube. Aerosol system containers having a valve-controlled opening and a vapor tap valve for dispensing the container contents permit the aerosol dispensing of flammable compositions at controlled rates with acceptable flame extensions by dispersing vapor in the product emerging from the valve opening.
REFERENCES:
patent: 3081223 (1963-03-01), Gunning
patent: 3122284 (1964-02-01), Miles
patent: 3393155 (1968-07-01), Schutte et al.
patent: 3858764 (1975-01-01), Watson
patent: 3964649 (1976-02-01), Alexander
patent: 3974945 (1976-08-01), Burger
patent: 4110427 (1978-08-01), Kalat
Mardesich Nicholas A.
Scherbel David A.
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