Foam generating apparatus

Details Foam generating apparatus Foam generating apparatus

1990-08-08

1991-11-19

Miles, Tim

Gas and liquid contact apparatus

Fluid distribution

Pumping

261DIG26, B01F 304

Patent

active

050664280

ABSTRACT:
A foam generating apparatus is disclosed which generates foam from a foamable liquid by pumping the liquid by means of a high pressure pump from a storage tank to a combining device in which the liquid is combined with compressed air. The apparatus is capable of both operation and storage under extremely cold ambient conditions without the components of the apparatus becoming frozen. When the apparatus is not generating the product foam, a foamable liquid is recirculated throughout the apparatus to prevent the components of the apparatus from becoming frozen. The recirculation system is especially useful in preventing the high pressure pump from becoming frozen during storage in cold environments, while also reducing the amount of wear on the pump.

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patent: 4474680 (1984-10-01), Kroll
patent: 4519388 (1985-05-01), Schwanbom et al.
patent: 4956080 (1990-09-01), Josefik

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