Pneumatic time delay device

Details Pneumatic time delay device Pneumatic time delay device

1978-11-28

1980-07-29

Chamblee, Hugh R.

Animal husbandry

Milkers

With automatic control

A01J 500

Patent

active

042145538

ABSTRACT:
Apparatus for controlling the operation of a pneumatically actuated device such as a milking machine has two chambers one of which has an adjustable throttle valve in a connection to a vacuum line. The other chamber has a connection to the atmosphere and another connection to the vacuum line. A valve controlled by the pressure in the first chamber controls alternatively the flow through the lines to the second chamber. A signal in a control device of the milking machine connects the vacuum line to the throttle valve connection for the evacuation of the first chamber.

REFERENCES:
patent: 3690300 (1972-09-01), Tokelli
patent: 3931794 (1976-01-01), Chillingworth
patent: 4033295 (1977-07-01), Soderlund
patent: 4126103 (1978-11-01), Olander

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