Harvesters – Motorized harvester – Including driven air-blower unit
Patent
1985-07-03
1988-05-03
Kamm, William E.
Harvesters
Motorized harvester
Including driven air-blower unit
56 134, A01D 35262
Patent
active
047411481
ABSTRACT:
A downwardly opening generally circular plan-shaped horizontal housing is provided including opposite side maximum width portions and having a driven rotary vacuum blade assembly journalled therein about a central upstanding axis. The lower end of the downwardly opening housing is at least substantially closed throughout an annular zone extending about and inwardly from the outer periphery of the housing lower end and a depending skirt structure is provided establishing a substantial barrier to the longitudinal flow of reduced pressure air inward toward the center of the annular zone immediately beneath the latter from all horizontal directions, except those horizontal directions extending inwardly toward the center of said annular zone from said opposite side maximum width marginal portions. In addition, the blade assembly includes generally radially outwardly projecting paddle-like blades paralleling radial planes of the axis of rotation of said blade assembly and the forward sides of the blades include mid-height longitudinally extending and forwardly projecting ribs operative to deflect air upon which the blades are advanced and to impact with, cut and shear lawn debris against which the ribs impact.
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Ekas, Jr. Frank E.
Ekas, Sr. Frank E.
Kamm William E.
Sykes Angela D.
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