Clamp release mechanism for an end finishing tool

Details Clamp release mechanism for an end finishing tool Clamp release mechanism for an end finishing tool

1994-09-30

1996-07-02

Howell, Daniel W.

Gear cutting, milling, or planing

Milling

Randomly manipulated, work supported, or work following device

82113, 408 82, B23C 302

Patent

active

055315500

ABSTRACT:
An end finishing tool includes a mandrel with a plurality of ribs at its distal end; an actuator longitudinally moveable in a first direction relative to the mandrel for moving the ribs radially outwardly in the installation mode to grip the inner surface of a conduit to be finished and in a second opposite direction for enabling the ribs to move radially inwardly in the extraction mode; an actuator driver threadably engaged with the actuator for driving the actuator in the first and second directions and a clamp release device for arresting movement of the actuator driver in the extraction mode for compelling the actuator to move in the second direction for enabling the ribs to move radially inwardly and release the inner surface of the conduit.

REFERENCES:
patent: 2035687 (1936-03-01), Briegel
patent: 4470734 (1984-09-01), Miller
patent: 4620823 (1986-11-01), Hillestad

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