Vacuum pulsator valves

Details Vacuum pulsator valves Vacuum pulsator valves

1984-07-16

1985-04-30

Schwadron, Martin P.

Fluid handling

Self-proportioning or correlating systems

Supply and exhaust type

137DIG8, A01J 512

Patent

active

045137668

ABSTRACT:
A vacuum pulsator for milking machines comprises a pair of valves controlling the alternate application of vacuum and air pressure in a line connected to the pulsator, the pulsator including adjustable bleed valves operative to control the frequency of alternation and/or the phase length of alternation of vacuum and air pressure. The pulsator may be subject to compressed air or atmospheric air, and the bleed valves are adjustable externally of the pulsator body.

REFERENCES:
patent: 2237441 (1941-04-01), McCornack
patent: 2313822 (1943-03-01), Hapgood
patent: 2652847 (1953-09-01), Segebarth

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