Cutting head with synchronized counter-rotary blades

Details Cutting head with synchronized counter-rotary blades Cutting head with synchronized counter-rotary blades

1987-07-27

1989-08-15

Weiss, John

Harvesters

Cutting

Housing or guard

56 6, 56202, A01D 3466, A01D 3470

Patent

active

048562653

ABSTRACT:
The present invention concerns a cutting head with synchronized counter-rotating blades and is characterized in that the ejection channel (4) progressively widens from the point of intersection (7) of the blades, by variation of the curvature of the interior surface (6') of the skirt enveloping the space (5) above each blade, up to the ejection opening.

REFERENCES:
patent: 2071872 (1937-02-01), Hamilton
patent: 2926478 (1960-03-01), Jepson
patent: 3186152 (1965-06-01), Epstein
patent: 4064680 (1977-12-01), Fleigle
patent: 4326370 (1982-04-01), Thorud
patent: 4335567 (1982-06-01), Comer
patent: 4424661 (1984-01-01), Kulak
patent: 4711077 (1987-12-01), Kutsake et al.
patent: 4720964 (1988-01-01), Ermacora et al.

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