Method for operation to excavate underdrain in the field ground

Details Method for operation to excavate underdrain in the field ground Method for operation to excavate underdrain in the field ground

1997-10-23

1999-08-03

Will, Thomas B.

Excavating

Ditcher

Having screw digger

37352, 37355, 37356, 37357, 37365, 37464, 37462, 37465, 405155, 405174, 405179, E02F 306, E02F 502, B65G 1500, F16L 1028

Patent

active

059309237

ABSTRACT:
A method of operation to effectively excavate an underdrain in the field ground having a long service life and ensuring that the underdrain will not be closed after a long period of time and a device for such operation. The method includes attaching a plurality of buckets to an endless chain, driving the endless chain to excavate a slit in the field ground, reforming inner side walls of the slit by a reformer, pressing soil from both sides of the slit later ally inwardly by a pressing member attached to the reformer to form a block to separate the slit into an upper space and a Iover space, and charging the upper space with discarded dirt.

REFERENCES:
patent: 333114 (1885-12-01), Dougine
patent: 1744942 (1930-01-01), Barber
patent: 4812078 (1989-03-01), Rivard
patent: 4981396 (1991-01-01), Albertson et al.
patent: 5434200 (1995-07-01), Kolker et al.
patent: 5701692 (1997-12-01), Woodall

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