Notched-flight feeder screws for briquetting operation

Details Notched-flight feeder screws for briquetting operation Notched-flight feeder screws for briquetting operation

1975-11-07

1977-04-12

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Sets of press couples comprising registering female mold...

Mounted on rolls

425363, 425449, 425208, 198657, B29C 300, B29C 1500, B30B 300

Patent

active

040172414

ABSTRACT:
Frictional drag on the feeder screw of a briquetting press is reduced and a concomitant reduction in feeder screw drive power requirements is realized by providing all but the lowermost flight on the feeder screw with regularly spaced notches to allow the reverse flow of limited amounts of the material being fed to the press.

REFERENCES:
patent: 662173 (1900-11-01), McGrath
patent: 2632203 (1953-03-01), Laubarede
patent: 3652064 (1972-03-01), Lehnen et al.
patent: 3824054 (1974-07-01), Harris
patent: 3901635 (1975-08-01), Greenberger
patent: 3932086 (1976-01-01), Kasamatsu
patent: 3941535 (1976-03-01), Street

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