Sampler for hazardous solid materials

Details Sampler for hazardous solid materials Sampler for hazardous solid materials

1990-02-14

1991-02-12

Raevis, Robert

Measuring and testing

Sampler, sample handling, etc.

Capture device

G01N 108

Patent

active

049914529

ABSTRACT:
Apparatus for sampling potentially hazardous solid materials is provided. The apparatus includes sampler head mounted on a handle having an interior bore with a connector for connecting the interior bore to a source of vacuum. The sampler head of the apparatus of the invention includes a collector having a funnel-shaped wall which diverges away from the handle from a minor opening to a major opening. A separator plate is provided having an exterior surface oriented in the direction of divergence of the funnel-shaped wall and with an interior surface in communication with the interior bore of the handle. A cutter holder is mounted on the separator plate and extends into the collector with the cutter holder being generally centered with respect to the minor opening of the collector and the funnel-shaped wall. The apparatus further includes an elongate, removable cutter sleeve which is attachable at an attachment end to the cutter holder. The cutter sleeve has a cutting end sharpened to cut and receive a sample into the interior of the cutter sleeve when attached to the cutter holder with the cutter sleeve having a wall thickness not greater than about 0.1 inch. The minor opening of the collector and the cutter holder each are dimensioned such that an annular area of the exterior surface of the separator plate about the cutter holder is exposed to the interior of the collector and has a minimum dimension sufficient to permit access for easy cleaning. At least one aperture is formed in the exposed annular area of the separator plate to communicate vacuum supplied to the bore in the handle to the collector.

REFERENCES:
patent: 3843198 (1974-10-01), Reynolds
patent: 4754655 (1988-07-01), Parker, III et al.
patent: 4887413 (1989-12-01), Tuckey, Jr.

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