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...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!

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Class 209/276 - With agitators


Subclass of Class 209 - Classifying, separating, and assorting solids
Definition: Convex or concave sifters which reciprocate and are provided
No. of patents: 3
Last issue date: 11/06/2007


NumberTitleIssue Date
7290665Automated high-throughput seed sample handling system and method
A method and apparatus for processing seed or seed samples includes an autonomous sorter which sorts seed by pre-programmed criteria. Optional features can include a counter to autonomously ensure the correct number of seeds to a seed package, a cleaning device, a s...
11/06/2007
6138836Blade arrangement for pulp screening apparatus
In the arrangement, the cross section of a blade rotating close to the surface of a screen cylinder changes in such a way that as the pulp consistency changes in the vertical direction of the screen cylinder, the cross section of the blade also changes in...
10/31/2000
5232099Classifying apparatus and method
Classifying apparatus and methods are disclosed for the classification of extremely small solid particles of 18 mesh or less in which low frequency, high amplitude vibrations are imparted to a screen simultaneously with high frequency, low amplitude vibra...
08/03/1993
 
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