Telescoping carrier for forestry equipment

Details Telescoping carrier for forestry equipment Telescoping carrier for forestry equipment

1979-02-21

1983-07-19

Stouffer, Richard T.

Earth working

Having tool overload shift controlled by a fluid pressure...

172680, 180 145, 280449, 280656, A01B 6104

Patent

active

043939430

ABSTRACT:
A forestry cultivation instrument, particularly a scarifier, is attached to a telescoping carrier. In operation, the carrier is connected to a vehicle and, when an obstacle is encountered, the carrier may telescope outwardly thereby reducing shock loading to both the vehicle and the scarifier. The telescoping members are held contracted by fluid pressure with the telescoping occurring, after the obstacle is encountered, when the obstacle causes fluid pressure to increase beyond the pressure which would occur from normal drawing resistance of the scarifier. The fluid pressure may then be used to aid the operator in clearing the scarifier from the obstacle. Various other forms of forestry equipment may be substituted for the scarifier.

REFERENCES:
patent: 1855513 (1932-04-01), Bulkley
patent: 2311826 (1943-02-01), Grasswick
patent: 2771306 (1956-11-01), Ash
patent: 3195668 (1965-07-01), Hansen
patent: 3472127 (1969-10-01), Scheidt
patent: 3670822 (1972-06-01), Reinhardt
patent: 3764166 (1973-10-01), Fiala
patent: 3924689 (1975-12-01), Manor
patent: 4102402 (1978-07-01), Steinberg

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