Uniform grain spreader

Fluid sprinkling – spraying – and diffusing – Container for non-fluid material – and scattering means – Rotating scatterer

Reexamination Certificate

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Details

C239S680000, C239S687000, C239S682000

Reexamination Certificate

active

06923389

ABSTRACT:
A grain spreader includes a vertical shaft, a receiver for receiving the grain and distributing the grain to a diverter that is rotatably mounted on the shaft with an outlet that is eccentrically positioned relative to the shaft, and a spreader pan that receives the grain form the distributer. The spreader pan is mounted to rotate on the shaft beneath the diverter. The diverter and the spreader pan are rotated by controllable motors so that the diverter can be stopped and the rotational speed of the spreader pan can be varied. The spreader pan has a bottom base and a series of varying length vanes that are vertically and radially aligned on the base to operably engage the grain and spread the grain within a bin or the like. The lengths of the vanes are preferably determined by a formula. In certain embodiments the spreader pan may have an opening to allow grain to pass through the pan without engaging the base so as to fill the center of a bin more evenly.

REFERENCES:
patent: 350821 (1886-10-01), Field
patent: 2538886 (1951-01-01), Skibbe et al.
patent: 2690827 (1954-10-01), Wiggins
patent: 3189355 (1965-06-01), Swenson et al.
patent: 3232458 (1966-02-01), Freeman
patent: 3349930 (1967-10-01), Welborn
patent: 4108384 (1978-08-01), Egli
patent: 4120410 (1978-10-01), van der Burgt
patent: 4326673 (1982-04-01), Thene
patent: 4397423 (1983-08-01), Beaver et al.
patent: 4437613 (1984-03-01), Olson
patent: 4564328 (1986-01-01), Loutaty et al.
patent: 4718811 (1988-01-01), Stoltzfus
patent: 4972884 (1990-11-01), Souers et al.
patent: 5296202 (1994-03-01), Souers et al.
patent: 5372467 (1994-12-01), Harris
patent: 5393189 (1995-02-01), Berquist
patent: 5403141 (1995-04-01), Rauser
patent: 5501405 (1996-03-01), Doornek
patent: 5558484 (1996-09-01), Mikulicz et al.
Brochure Bin-Level Automatic Control Grain Spreader, by DMC.
Brochure Power Grain Diverter, by DAR-VIC.
Brochure Electric Spread-Master, by National Equipment, Inc., 1983.
Brochure AgriDry Grain Spreaders & Bullseye Controllers, by AgriDry, Inc.
Brochure Winfield Grain Powered Grain Spreader, by Winfield.
Brochure Spreader, by Betterco Mfg.
Brochure Hi-Capacity Grain Hog, by Shivvers, Inc.
Brochure Scattergrain Models, by Farm Fans.
Brochure Spinning Gravity Grain Spreader, by Spread-All Mfg. Co., Jan. 2, 1995.

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