Material testing apparatus
OwnerJack O'Brieninventor
Life of this patent
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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.
Claims16
A particulate sampling device, comprising:
- a hopper for receiving a quantity of particulate material, said hopper comprising a plurality of releasably affixed gates for holding said quantity of particulate material in said hopper until its release;
- means defining a grid disposed below said hopper to separate said quantity of particulate material into substantially equal segments after said particulate material is released by said plurality of releasably affixed gates;
- means including a handle supported by said hopper for manually releasing said plurality of releasably affixed gates for releasing said particulate material onto said grid;
- receiving means disposed below said grid for receiving said separated particulate material in said substantially equal segments, whereby a sample of said particulate material is obtained from one of said equally separated segments.
A particulate sampling device, comprising:
- a hopper for receiving a quantity of particulate material, said hopper comprising a plurality of releasably affixed gates for holding said quantity of particulate material in said hopper until its release;
- manually controlled release means supported by said hopper for releasing said quantity of particulate material from said hopper;
- means defining a grid disposed below said hopper to separate said quantity of particulate material into substantially equal segments, said grid being integrally configured with a plurality of chutes that transport separated material downwardly therefrom;
- and
- receiving means disposed below said grid and said chutes for receiving said separated particulate material in said substantially equal segments, whereby a sample of said particulate material is obtained from one of said equally separated segments.
A particulate sampling device, comprising:
- a hopper for receiving a quantity of particulate material, said hopper comprising a plurality of releasable gates for releasing said particulate material from said hopper;
- a funnel disposed adjacent said hopper for directing said quantity of particulate material into said hopper;
- means defining a grid disposed below said hopper to separate said quantity of particulate material into substantially equal segments, said grid being configured with a plurality of integral chutes that transport separated material downwardly therefrom;
- and
- receiving means disposed below said grid and said chutes for receiving said separated particulate material in said substantially equal segments, whereby a sample of said particulate material is obtained from one of said equally separated segments.
Dependencies are inferred from the claim text.