Pressurized package for dispensing a product in a finely dispers

Details Pressurized package for dispensing a product in a finely dispers Pressurized package for dispensing a product in a finely dispers

1976-10-06

1978-10-31

Reeves, Robert B.

Dispensing

With filter

Associated with vent passage

210468, 2224021, 239575, 2395903, B65D 8314, B67D 558

Patent

active

041229789

ABSTRACT:
A pressurized dispensing package includes a container in which the product to be dispensed and a gaseous propellant are stored. The product is dispensed through a discharge passage that extends from a control valve to a terminal orifice. A plural passage flow control member is disposed in the discharge passage. Each passage of the flow control member has a flow dimension in the range of one to one hundred microns and the length of the flow control member several times the passage flow dimension so that a significant pressure drop occurs across the flow control member as the product flows through the member. The total flow area of the flow control passages disposed in the discharge passage is greater than the area of the terminal orifice but less than fifty percent of the area of the discharge passage in which the flow control member is located. The flow control member provides an intermediate pressure drop and a change in product flow configuration downstream from the flow control member and the product is emitted from the terminal orifice in a desirable spray pattern without requiring the dilution and aerosol effect created by the dispensing of substantial amounts of propellant with the product.

REFERENCES:
patent: 2594539 (1952-04-01), Brown
patent: 2815889 (1957-12-01), Stetz
patent: 3098589 (1963-07-01), Graham
patent: 3209954 (1965-10-01), Webster
patent: 3647411 (1972-03-01), Stevens
patent: 3756472 (1973-09-01), Vos

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