Pulsation arrangement
AssigneeThe National Dairy Association of N.Z.
InventorsDavid J. Gregan, Ronald H. Crowter
Life of this patent
Estimating the term…
Abstract
A milking machine pulsation arrangement which includes a pulsation rate and ratio timing device in combination with a first coil and vacuum pulsator unit operated by the coil and at least one associated coil and vacuum pulsation unit controlled thereby, for controlling a plurality of milking machine pulsator units. A time delay device is connected to and associated with pulsation rate and ratio timing device and the at least one associated coil so that the time delay device is adapted to receive electrical current pulse of predetermined interval and duration and thereafter substantially reproduce the current pulse.
Claims7
A milking machine pulsator arrangement for operating a plurality of milking claws comprising:
- a plurality of pulsator units each of which comprises a valve means operatively connected to a separate milking claw means for controlling alternative application of atmospheric and vacuum pressure to operate each respective milking claw means and a separate electric coil means operatively associated with each respective valve means for individually operating said valve means;
- a pulsator rate and ratio timing means operatively associated with a first one of said plurality of pulsator units for operating the coil means of said first one of said units;
- time delay means operatively associated with each of the other of said pulsator units for individually operating the respective coil means of each of said other units;
- an electric power source;
- and
- electrical conduit means connecting said power source to each of said coil means and connecting said pulsator rate and ratio timing means between said power source and each of said time delay means;
- so that said pulsator rate and ratio timing means controls the operation of the coil of said first one of said units and provides an electric pulse after a predetermined time delay to said time delay means of each of said other units for operating the respective coils of said other units in succession after a respective predetermined time delay.
Dependencies are inferred from the claim text.