Boring or penetrating the earth – Ice boring
Patent
1986-10-20
1988-02-09
Kyle, Deborah L.
Boring or penetrating the earth
Ice boring
175203, 175209, 408 56, 62344, 376260, 376284, G21C 900, G21C 1300, F25C 504
Patent
active
047236116
ABSTRACT:
A tool for maintaining ice baskets associated with a nuclear reactor system. The frame of the tool includes a platform which is disposed on a lattice support structure surrounding a selected and isolated basket. The tool includes an electric drill mounted for vertical reciprocation, in parallel axial relationship with the ice basket, and plural, selectively connectable auger shaft sections having a continuous helical fin thereabout which are connected in succession between the drill and a rotary drill bit, for drilling a hole of the required length, down through the ice within the ice basket. The drill then is maintained at an upper, vertically fixed position and a funnel positioned about the auger; ice chips or flakes are fed into the funnel while the drill is driven in reverse rotation, the auger conveying the ice to the bottom of the ice basket for filling lowermost voids and for filling successively higher voids as the auger is withdrawn. Clamping means are provided for clamping the protruding end of an auger section, during both the assembly of a successive auger section thereto and the disassembly of a successive auger section therefrom.
REFERENCES:
patent: 2723835 (1955-11-01), Reese et al.
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patent: 3502543 (1970-03-01), Sewell
patent: 3850002 (1974-11-01), Field
patent: 3879958 (1975-04-01), Field
patent: 4048353 (1977-09-01), Stewart et al.
patent: 4650011 (1987-03-01), Barbieri
patent: 4671920 (1987-06-01), Scrabis et al.
Hardin, Jr. Roy T.
Scrabis Charles M.
Abeles D. C.
Kyle Deborah L.
Wasil Daniel
Westinghouse Electric Corp.
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