DEVICE FOR HAULING FELLED TREES BY HELICOPTER

Title:

DEVICE FOR HAULING FELLED TREES BY HELICOPTER

Document Type and Number:

WIPO Patent Application WO/1997/033791

Kind Code:

A1

Abstract:

The device for hauling felled trees by helicopter comprises a cable attached to the helicopter hull and a grab attached to the lower part of the cable. The distance between the cable-hull attachment points and the grab lies in the range 1.78 - 7.27 times the diameter of the helicopter rotor. The pincer-type grab is provided with a hydraulic or electrical drive and at least two air fans arranged on the grab symmetrically in relation to the cable attachment point.

Inventors:

CHENTSOV VITALY GEORGIEVICH (RU)

Application Number:

PCT/RU1997/000017

Publication Date:

September 18, 1997

Filing Date:

February 03, 1997

Export Citation:

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Assignee:

AERINN AOZT (RU)
CHENTSOV VITALY GEORGIEVICH (RU)

International Classes:

B64D1/22; B66C1/58; B66C13/08; (IPC1-7): B64D1/22

Foreign References:

US3756543A	1973-09-04
FR1520021A	1968-04-05
US4826109A	1989-05-02
SU1704379A
DE1456192A1	1969-02-06

Other References:

See also references of EP 0825106A4
None

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