Harvesters – Cutting – Hedge or plant-row trimmers
Patent
1988-05-20
1989-03-28
Bray, W. Donald
Harvesters
Cutting
Hedge or plant-row trimmers
56 119, 144 2Z, A01D 5518
Patent
active
048152633
ABSTRACT:
An airborne tree trimming apparatus for installation on a helicopter or the like, and operating independently of the helicopter, which apparatus includes a boom extension vertically suspended from the helicopter and a plurality of circular saw blades arranged in tandem, coplanar relationship on an operating boom which is attached to the boom extension by means of a boom pivot. The circular saw blades are designed to rotate about parallel, substantially horizontal axes which are oriented substantially at right angles to the normal direction of motion of the helicopter and are belt-driven by an internal combustion engine which is also mounted on the operating boom, above the circular saw blades. A pair of ground-located cradles not attached to the operating boom, permit the apparatus to be landed with the operating boom elevated from ground level, by maneuvering the helicopter to lay the operating boom and circular saw blades on the cradles in front of the helicopter. An optional quick-release hook engaging the top of the boom structure and mounted on the helicopter permits the apparatus to be jettisoned in an emergency while the helicopter is airborne.
REFERENCES:
patent: 2707008 (1955-04-01), Bannister
patent: 4554781 (1985-11-01), Rogers
patent: 4577457 (1986-03-01), Grant
Cox, III William C.
Hartung Joe
Bray W. Donald
Harrison John M.
LandOfFree
Airborne tree trimming apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Airborne tree trimming apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Airborne tree trimming apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1650597