Method and apparatus for controllably avoiding an obstruction to

Details Method and apparatus for controllably avoiding an obstruction to Method and apparatus for controllably avoiding an obstruction to

1999-02-01

2000-11-28

Lillis, Eileen D.

Road structure, process, or apparatus

Apparatus

Automatic control

404 93, 404 94, E01C 2316, E01C 2307

Patent

active

061526487

ABSTRACT:
A jump and return to grade function provides a means by activation of a switch to rapidly raise a milling machine to avoid an obstacle, then return the machine to the previous milling position. When the jump function is activated, the legs are extended at full speed, causing the machine to rise. In the return to grade function, the legs are retracted at controlled speeds until the previous milling depth is reached or the switch is released.

REFERENCES:
patent: 3929377 (1975-12-01), Weaver et al.
patent: 4943119 (1990-07-01), Zarniko et al.
patent: 5318378 (1994-06-01), Lent
patent: 5607205 (1997-03-01), Burdick et al.
patent: 5893677 (1999-04-01), Haehn et al.

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