Method and apparatus for measuring the foam life on an effervesc

Details Method and apparatus for measuring the foam life on an effervesc Method and apparatus for measuring the foam life on an effervesc

1976-09-30

1977-12-06

Yasich, Daniel M.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Cleaning or foaming ability

141 83, 250577, G01N 2124

Patent

active

040610160

ABSTRACT:
In order to measure the life of the foam of an effervescent beverage a predetermined quantity of the liquid is held in an upper vessel. This liquid is then allowed to fall rapidly into a lower vessel formed of transparent material and rotated about a vertical axis. As soon as the liquid is poured violently into the lower vessel a timer is started. Simultaneously a light source directs a beam of light upwardly through the vessel and a photocell situated above the vessel receives this light. When the foam has decreased sufficiently to allow the beam to pass through to the photocell, circuitry connected between the photocell and the timer is arrested. The elapsed time is proportional to the life of the head on the beverage.

REFERENCES:
patent: 176231 (1876-04-01), Lugrin
patent: 2380679 (1945-07-01), Smith
patent: 3136117 (1964-06-01), Speiser
patent: 3964864 (1976-06-01), Dahms

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