Trenching device

Details Trenching device Trenching device

1986-02-14

1988-01-26

Eickholt, E. H.

Excavating

Ditcher

Wheel excavator

37DIG17, 74337, 192 0034, 192 7012, E02F 508

Patent

active

047209291

ABSTRACT:
An improved torsional limiting device and associated control system are incorporated in a large scale trencher between the power source and the cutting wheel to provide for protection of the equipment components in the event the cutting wheel encounters unforeseen obstructions. The control system provides for prompt and variable adjustment by the operator of the amount of torque transmitted to downstream components and also provides for the prompt and easy resumption of the trenching operation after an obstruction has been encountered.

REFERENCES:
patent: 2084887 (1937-06-01), Bennett
patent: 2708800 (1955-05-01), Logus
patent: 2894341 (1959-07-01), Amthor
patent: 3251439 (1966-05-01), Randol
patent: 3945138 (1976-03-01), Heusler et al.
patent: 3970154 (1976-07-01), Bartels
patent: 4458793 (1984-07-01), Riese et al.
patent: 4488626 (1984-12-01), Handke
patent: 4516655 (1985-05-01), Donahue et al.
patent: 4529073 (1985-07-01), Lewis
patent: 4574926 (1986-03-01), Bubak

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