Reamer disassembly

Details Reamer disassembly Reamer disassembly

1982-01-04

1985-02-05

Leppink, James A.

Boring or penetrating the earth

Combined

29253, 29275, 254104, 175347, E21B 1200

Patent

active

044973845

ABSTRACT:
A wall contacting device, such as a roller reamer used in earth boring, includes a block, e.g. supporting one end of a roller shaft, making an interference fit with a socket in the body of the device, there being tool passage means between the body and block; a disassembly tool is removably received in the passage and includes a pressure portion engaged with the block and a head portion to receive impact; and cooperating guide means on the body and tool includes coaxial cylindric surfaces on the body and tool for supporting the tool for rotation about a fixed axis, the pressure portion of the tool being a portion of an Archimedian spiral coaxial with the cylindric surfaces.

REFERENCES:
patent: 303888 (1884-08-01), Sharp
patent: 2079745 (1937-05-01), Maney
patent: 4182425 (1980-01-01), Garrett

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