Measuring and testing – Sampler – sample handling – etc. – Conveyor coacting
Patent
1990-08-22
1991-12-17
Noland, Tom
Measuring and testing
Sampler, sample handling, etc.
Conveyor coacting
7386341, 7386352, 7386431, G01N 120, G01N 118
Patent
active
050726242
ABSTRACT:
A sampler is disclosed for a flow of particulate material on a conveyor system which has at least one transfer point from a first conveyor to a second conveyor. The sampler has a sample bucket with a hinged bottom and a traveling rig which mounts the sample bucket to a fixed linear track spaced from the second conveyor. An electric motor drives a gear which engages with the track to move the traveling rig and bucket along the track from a first position over a sample collector to a second position aligned with the material flow from the first conveyor. The collector has two conduits. The first conduit leads to a sample repository and the second conduit leads to a conveyor for returning samples material to the material flow. An actuator-linkage assembly acts to move the sample bucket which is aligned with the material flow from a raised position where the bucket does not intercept the flow to a lowered position where substantially all the flow of material from the first conveyor is intercepted by the bucket. The assembly acts to retract the bucket from the lower, flow intercepting, position after a selected time. The rig then returns the bucket with the intercepted material to the first position over the splitter. An actuator on the bucket works a hinged bottom door to empty the sampled material from the bucket into the splitter, to permit a proportional fraction of the samples material to be collected.
REFERENCES:
patent: 280994 (1883-07-01), Andrus
patent: 2498601 (1950-02-01), Bylin et al.
patent: 3158030 (1964-11-01), Cross
patent: 3853009 (1974-12-01), Sutherland
patent: 4177624 (1979-12-01), Kelpin
patent: 4766964 (1988-08-01), Hirota et al.
Beloit Corporation
Campbell Raymond W.
Noland Tom
Veneman Dirk J.
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