Feeder for apparatus for ejecting a mixture of a plurality...

Details Feeder for apparatus for ejecting a mixture of a plurality... Feeder for apparatus for ejecting a mixture of a plurality...

B - Operations, Transporting

05

B

222/68, 222/69.1

B05B 7/02 (2006.01) B05B 7/00 (2006.01) B05B 7/32 (2006.01) F04B 1/20 (2006.01) F04B 53/16 (2006.01)

Patent

CA 1063565

Abstract of the Disclosure A feeder for apparatus for ejecting a mixture of liquids, e.g. urethane foam, comprises a pair of swash plate proportioning pumps one individual to each of the liquids, e.g. resin and isocyanate, each proportioning pump being fed by a gear pump from a supply of the respective liquid. Seepage along the drive shafts of the isocyanate pumps is continuously removed by bathing them in a recirculating stream of flushing agent. The swash plate and gear pumps and flushing agent pump are all driven by a single motor from a common chain drive. The liquids are heated during passage through separate hoses to a common dispensing head or gun, by immersed coil electric resistance heaters extending lengthwise freely within the hoses. A novel control system is provided for the hose heater circuit, the adequacy of the liquid supply and other operating conditions. * * * * *

286668

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