Harvesters – Motorized harvester – Including plural operating units and drive
Patent
1989-08-14
1990-04-17
Bui, Thuy M.
Harvesters
Motorized harvester
Including plural operating units and drive
563202, A01D 5500, A01D 35264
Patent
active
049168878
ABSTRACT:
A rotary type lawn mower and mulcher for mounting a tractor characterized by an open-bottom housing with a discharge opening having two or more cutting blades rotatably journaled in the housing and moving in a common cutting plane, a plurality of high speed mulching blades mounted on a single spindle at various heights positioned in the downstream paths of the cutting blades, the individual cutting blades having a longitudinal cutting edge therealong with lateral corrugations throughout the cutting length thereby increasing the cutting plane depth of each blade whereby the vertical height within the housing above the cutting blades is substantially filled with the cutting planes of the mulching blades whereby the grass clippings from the cutting blades are finely cut and discharged at increased velocities through a discharge opening and a deflection chute positioned downstream thereof with a variable height dam extending into the discharge path of the mulching blades whereby the finely-cut clippings are deflected to achieve an even dispersal pattern of clippings across the angular path of the discharge chute.
REFERENCES:
patent: 3916606 (1975-11-01), Brudnak, Jr. et al.
patent: 3974629 (1976-08-01), Russell et al.
patent: 4083166 (1978-04-01), Haas
patent: 4196568 (1980-04-01), Perry
patent: 4263771 (1981-04-01), Iaboni et al.
patent: 4711074 (1987-12-01), Jetzinger
Mullet Paul W.
Voth Elmer D.
Brown, Jr. Edward L.
Bui Thuy M.
Excel Industries Inc.
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