Devices which comprise a helical spring used as conveying, extra

Details Devices which comprise a helical spring used as conveying, extra Devices which comprise a helical spring used as conveying, extra

1982-05-05

1985-01-29

Bartuska, F. J.

Dispensing

With discharge assistant

Rotary

198659, B65G 3308

Patent

active

044960867

ABSTRACT:
A rotating helical coiled spring for conveying, extracting, quantity-controlling or mixing particulate products. A supple material such as a brush is attached to the periphery of the spring and brushes against a rigid wall or tube as the spring is rotated thereby propelling the particulate product in a direction generally parallel to the axis of the spring.

REFERENCES:
patent: 351014 (1886-10-01), Wissler
patent: 1835989 (1931-12-01), Hofft et al.
patent: 3675367 (1972-07-01), Amburn
patent: 3684082 (1972-08-01), Wardell
patent: 3724725 (1973-04-01), Stauffer
patent: 4192418 (1980-03-01), Montgomery

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