Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Control element responds proportionally to a variable signal...
Patent
1985-11-27
1989-07-18
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
Control element responds proportionally to a variable signal...
422124, 422125, 422126, 422305, 219274, 219275, 239 54, 239 60, G05D 23185, A61L 901
Patent
active
048491810
ABSTRACT:
According to the present invention there is provided an improved heat activated dispenser for releasing a vaporizable material into the ambient atmosphere. The inventive heat activated dispenser is made of a material which imparts excellent thermal insulating properties which control the rate of vaporization and provides a long useful life of the dispenser. Due to the novel use of absorbent compactable materials, such as synthetic silicates, the present invention utilizes no binders and substrates. Rather, the dispenser, according to the present invention, is an integral self-supporting structure. The nature of the absorbent compactable material used, makes the use of a novel method of manufacture especially advantageous. According to the novel method of manufacture, there is provided a compaction apparatus for compacting the absorbent compactable material, such as synthetic silicate, into the integral self-supporting structure of the heat activated dispenser. A volume of the absorbent compactable material is impregnated with the desired vaporizable material and added to the compaction apparatus, an additional volume of dry absorbent compactable material may be added. The absorbent compactable materials in the compaction apparatus are pre-formed, then compacted under a pressure sufficient to compact the materials into an integral self-supporting structure.
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Hackh's Chemical Dictionary, pp. 63 and 610, 1969.
Kelley John
Kelley Timothy D.
LAD Technology
McMahon Timothy M.
Richman Barry S.
Weiss Harry M.
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