초록 ▼

Foam tester device, which is useful for testing the foaming of liquids at elevated temperatures, has an insulated cabinet containing a temperature-regulatable volume; a heater capable of heating a gas for the volume; a feature to circulate heated gas in the volume; an access system such that sample

Foam tester device, which is useful for testing the foaming of liquids at elevated temperatures, has an insulated cabinet containing a temperature-regulatable volume; a heater capable of heating a gas for the volume; a feature to circulate heated gas in the volume; an access system such that sample container(s), each capable of holding a liquid sample, is(are) insertable into the volume so as to be heated; and a feature, for example, a window, to observe any sample(s) in the sample container(s) such that observation can be conducted from outside the cabinet. The foam tester is a gas, especially air, bath. Cooling may be provided by water or other liquid, for example, propylene glycol and water mixture, and/or by insert of a cooling device, for example, a cooling carosel or insert drawer in place of the foam tester sample carousel. Foam test operation is simplified, and the foam tester may be employed to operate sample testing cycles without removal of samples from the tester between tests.

대표청구항 ▼

[ We claim:] [1.] A foam tester device comprising an insulated cabinet with a temperature-regulatable volume contained therein; a heater capable of heating a gas for said volume; a feature to circulate heated gas in said volume, which feature includes a plenum below said volume through which said ga

[ We claim:] [1.] A foam tester device comprising an insulated cabinet with a temperature-regulatable volume contained therein; a heater capable of heating a gas for said volume; a feature to circulate heated gas in said volume, which feature includes a plenum below said volume through which said gas can be circulated with respect to said volume by pumping said gas, and which feature further includes a perforate circulation stack mounted above said plenum and interior of said volume to a floor defining a bottom of said volume, through which gas can circulate with respect to said plenum and a portion of said volume exterior to said circulation stack; a top access system such that sample container(s), each capable of holding a liquid sample, is(are) insertable into the volume so that the same can be heated therein; and a feature to observe any sample(s) in the sample container(s) such that observation can be conducted from outside the cabinet during operation of the device, wherein provision is made therein for a sample bubbling gas to provide test foam for the liquid sample(s) in the sample container(s).