Fluid handling – Systems – Programmer or timer
Patent
1976-08-27
1978-03-28
Cohan, Alan
Fluid handling
Systems
Programmer or timer
1376242, 13762525, 119 1428, A01J 514
Patent
active
040809951
ABSTRACT:
A slide is adapted to be reciprocated along a slide plane to connect each pulsation opening of the milking machine pulsator alternately to vacuum and to atmosphere. A spindle rotated at constant speed by a suitable motor is provided with an endless, helically-shaped groove; and a driving means engaged in this groove is connected to the slide for reciprocating the same.
REFERENCES:
patent: 1352726 (1920-09-01), Dagsh
patent: 1766224 (1930-06-01), Montevaldo
patent: 2182522 (1939-12-01), Lindsey
patent: 2389918 (1945-11-01), Macgil
patent: 2625948 (1953-01-01), Marlow
patent: 3029073 (1963-06-01), Conde
patent: 3480038 (1969-11-01), Simms
Alfa-Laval AB
Cohan Alan
Hapgood Cyrus S.
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