Feed screw

Details Feed screw Feed screw

1990-09-06

1991-09-03

Valenza, Joseph E.

Conveyors: power-driven

Conveyor section

Screw

198677, 366 88, 366323, 100145, 425208, B65G 3332

Patent

active

050444891

ABSTRACT:
Feed screw for feeding a mix, said screw consisting of a core part (1), which becomes thicker towards its trailing end, and of a screw spiral (2) that revolves around said core part. The feed screw is provided with a detachable tip portion (3) at its thicker end. The detachable tip portion (3) is a sleeve-shaped piece, which is supported on an inner part (4) that constitutes a projection on the frame part of the feed screw. The frame part includes at least one front face (6) which, when the machine runs and when the screw revolves, pushes ahead of itself a counter-face (7) provided in the tip portion (3) and transmits the torque to the tip portion.

REFERENCES:
patent: 1090956 (1914-03-01), Zinteck
patent: 3666386 (1972-05-01), McElroy et al.
patent: 3877860 (1975-04-01), Putti
patent: 3998318 (1976-12-01), McAlarney
patent: 4022556 (1977-05-01), Goetjen
patent: 4046848 (1977-09-01), Putti
patent: 4073160 (1978-02-01), Perret
patent: 4167339 (1979-09-01), Anders
patent: 4344718 (1982-08-01), Taylor
patent: 4746220 (1988-05-01), Sukai et al.
patent: 4852719 (1989-08-01), Lapeyre

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