Boring or penetrating the earth – With means carrying cuttings laterally of bore axis...
Patent
1981-07-15
1984-02-07
Novosad, Stephen J.
Boring or penetrating the earth
With means carrying cuttings laterally of bore axis...
175161, 175209, 175 84, E21B 1206
Patent
active
044297548
ABSTRACT:
Means are provided in combination with the depending cylindrical skirt of a drill rig for conveying drill cuttings from around the drill stem during a drilling operation so they will not deposit in the usual annular pile around the open mouth of the drill hole. The means comprise a hopper attached to the lower end of the skirt and having a side discharge opening into which one end of an endless conveyor protrudes in confronting relationship with the drill stem that passes through an accommodating opening in the otherwise closed bottom of the hopper. The conveyor is advantageously of scraper type, having an endless chain with scraper blades at intervals along its length that scrape along the bottom of a conveyor trough, and advantageously having an elongate discharge opening extending lengthwise of the bottom of the trough adjacent to the discharge end of the conveyor.
REFERENCES:
patent: 2107552 (1938-02-01), Smith
patent: 2834451 (1958-05-01), Turner
patent: 3088718 (1963-05-01), Lilly
patent: 3190375 (1965-06-01), Pearson
patent: 3747697 (1973-07-01), Russell, Jr.
patent: 3791464 (1974-02-01), Stewart
patent: 4295534 (1981-10-01), Zachmeier
Neuder William P.
Novosad Stephen J.
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