The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 1994
Filed:
Dec. 23, 1992
Edward G Butt, Bagdad, AZ (US);
Other;
Abstract
A sampler gathers a portion of borehole cuttings being discharged during a mining drilling operation. The unconfined cuttings are discharged over the sampler while falling to ground surface surrounding the borehole. The sampler diverts a small portion of the flow over two receptacles which are sized to hold a desired volume of cuttings. The receptacles shuttle back and forth over a discharge chute, periodically depositing the desired volume of cuttings into a cuttings container, for subsequent chemical analysis to determine the nature of the ore. A signal derived from the drillstring shaft revolution rate controls the receptacles, so that a sampling is taken at regular drilling depth intervals. A constant, small sample is thus held aside for analysis which is more representative of the soil strata than is a sample obtained by a conventional manual coring operation.