Controlled solution releasing device

Details Controlled solution releasing device Controlled solution releasing device

1973-12-19

1978-03-21

Pendegrass, Verlin R.

Ammunition and explosives

Igniting devices and systems

55388, F42B 2300, F42D 504

Patent

active

040796752

ABSTRACT:
An article for use as a solution releasing control device in a fluid conting medium, such as air containing water vapor, is provided including an inner material composed of solid substance capable of sorbing this fluid and also capable of dissolving in this sorbed fluid, for example a hygroscopic, deliquescent agent such as lithium chloride or a mixture of lithium chloride and the tetrasodium salt of ethylenediaminetetraacetic acid. This inner material is enclosed in a container fabricated of a material which is substantially impermeable to the fluid in the medium surrounding it and is substantially nonwettable by the solution formed from the sorbed fluid and the sorbing agent, for example an essentially hydrophobic film, such as polyethylene. The container is provided with perforations of pre-determined number and size to provide an accurately controlled fluid sorbing and solution releasing device.

REFERENCES:
patent: 2578324 (1951-12-01), Southwick, Jr.
patent: 2738225 (1956-03-01), Meek
patent: 3309849 (1967-03-01), Ward
patent: 3390511 (1968-07-01), Norton
patent: 3523408 (1970-08-01), Rosenberg
patent: 3718513 (1973-02-01), Baer et al.

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