Agitating – Stirrer within stationary mixing chamber – Rotatable stirrer
Reexamination Certificate
2007-10-16
2007-10-16
Soohoo, Tony G (Department: 1723)
Agitating
Stirrer within stationary mixing chamber
Rotatable stirrer
C366S307000, C366S314000, C366S604000
Reexamination Certificate
active
11093442
ABSTRACT:
A vertical agricultural mixer employs a pair of vertical mixing augers in combination with a pair of asymmetrical, half pyramid-shaped transfer protrusions adjacently disposed along each opposed sidewall between the augers in a mixing tub. The transfer protrusions are differently shaped with tips which are vertically spaced from each other along a vertical line on each sidewall. The transfer protrusions create a pressure gradient to allow material mixed in the tub to transfer to an adjacent mixing auger more efficiently so that mixing action is optimized and dead mixing spots are prevented.
REFERENCES:
patent: 6409377 (2002-06-01), Van Der Plas
patent: 7118268 (2006-10-01), Van Der Plas
Pellman David C.
Sailer Anthony H.
Andrus Sceales Starke & Sawall LLP
Patz Sales, Inc.
Soohoo Tony G
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