Fluid sprinkling – spraying – and diffusing – Processes – Including mixing or combining with air – gas or steam
Patent
1991-08-13
1992-07-21
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Including mixing or combining with air, gas or steam
239 9, 2394275, B05B 700
Patent
active
051315904
ABSTRACT:
A sprayed-in fibrous insulation is provided in a substantially homogeneous-density form. A foamed material in its foamed state is mixed with already-lofted fibrous particles and the mixture is sprayed into a desired space. A mixing assembly designed to provide the described mixing of materials and to avoid backflow and consequent clogging or plugging is provided. The velocity of the mixture is increased to a level to cause spraying of the mixture by means of a plurality of hoses, each hose having a smaller inner diameter and cross-sectional area than the preceding hose, with all hoses having a smaller inner diameter and cross-sectional area than the mixing assembly. The foam acts to maintain the fibrous particle loft during impaction from subsequent applications of the insulation material or from the weight of insulation material above. The foam preferably contains an adhesive material which sets or cures to maintain the fiber loft by the time the foam material dries and dissipates.
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Kashnikow Andres
Trainor Christopher G.
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