Material testing apparatus

Details Material testing apparatus Material testing apparatus

1999-09-01

2000-10-03

Bratlie, Steven A.

Material or article handling

Static receptacle and means for charging or discharging, or...

Charging or charge-distributing means

141240, 222485, 414328, 7386341, B65G 6530

Patent

active

061263753

ABSTRACT:
The invention consists of a hopper to place material in, and a door beneath it to hold back the material until it is to be released onto a grid consisting of four separate compartments or chutes that direct the material into four separate sample containers. The latch is arranged in such a manner as to allow the gates to open suddenly, and simultaneously, releasing the material in a mass (rather than slowly), assuring an even flow of the material down the chutes and into the four waiting containers below. This assures an unbiased sample in each container. For further reductions in sample size, the common practice is to choose any two opposite corner containers, combine in the hopper and repeat the process.

REFERENCES:
patent: 1795987 (1931-03-01), Adams
patent: 2593535 (1952-04-01), Cannon, Jr.
patent: 4039062 (1977-08-01), Carre et al.
patent: 4265065 (1981-05-01), Osada
patent: 4553617 (1985-11-01), Tatematsu

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