Boring or penetrating the earth – Ice boring
Patent
1990-06-26
1991-08-13
Kisliuk, Bruce M.
Boring or penetrating the earth
Ice boring
175373, 175394, 175404, 408202, F25C 504
Patent
active
050388703
ABSTRACT:
Ice auger cutters include a shaft having a handle connected to one end for rotating the shaft about its axis, cutting elements secured to an opposite end of the shaft positioned radially outwardly from the axis, and an adjustable stop coaxially positioned between the cutting elements to control the penetration or feed rate of the cutter according to the density and temperature of the ice and strength of the operator.
REFERENCES:
patent: 2393282 (1946-01-01), Berlin
patent: 2476047 (1949-07-01), Kidder
patent: 3051253 (1962-08-01), McCann
patent: 3131777 (1964-05-01), Snider
patent: 3175630 (1965-03-01), Hein et al.
patent: 3760890 (1973-09-01), Rantanen
patent: 3786876 (1974-01-01), Aaltonen
patent: 3929196 (1975-12-01), Rantanen
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