Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Reexamination Certificate
2002-09-30
2004-01-13
Marcelo, Emmanuel (Department: 3654)
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
Reexamination Certificate
active
06676112
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a winch line safety device and method and, more particularly, to a device and method for minimizing line whipping upon line breaking or other improper line release.
2. Discussion of the Background
Off-road four-wheeling has become a major sporting and recreational past time. Most 4×4 vehicles also carry a winch which can be used for a variety of purposes. Rarely, when the line in the winch is in use and under severe tension it suddenly releases which may cause the released end of the line to whip. The sudden release may be due to the line breaking or, for example, the object hooked to may break. The whipping end of the line may cause damage to the vehicle carrying the winch such as breaking a windshield or damaging the body of the vehicle.
It is known to raise the hood of the vehicle to stop the free end of the line when whipping so as to prevent windshield damage.
It is also known to throw an item such as a jacket, a blanket or floor mats over the line in use so that in the event the line releases and whips, the item aids to reduce line whipping through a parachute action. For example, Warn Industries recommends using a heavy quilted mover's blanket located midway between the winch and the anchor point to absorb the energy should the line break (“The Basic Guide to Winching Techniques,” 2001, www.warn.com).
A need exists for a safety device and method for reducing/minimizing line whipping when a line winch is under tension and then suddenly releases.
SUMMARY OF THE INVENTION
The safety device of the present invention is used to prevent a winch line from whipping when the line improperly releases. A weight is coupled to the line at a selected region on the line when the line is extended from the winch to an object. When the extended line suddenly releases the weight provides a weighted pivot for the released line.
A safety method of the present invention provides coupling a weight to the line and locking the weight at a selected region of the line when the line is extended from the winch for winching to an object. When the extended line suddenly releases the locked weight provides a pivot for the released line.
REFERENCES:
patent: 413389 (1889-10-01), Cruikshank
patent: 2250595 (1941-07-01), Messman
patent: 3638347 (1972-02-01), Kochevar
patent: 4392680 (1983-07-01), Wolfe
patent: 5926996 (1999-07-01), Frazier
patent: 5975498 (1999-11-01), Sauner
patent: 6299403 (2001-10-01), Lee
Warn Industries, The Basic Guide to Winching Techniques, Warn Industries Off Road Products, 2001, pgs. 1-15, USA.
Dorr, Carson, Sloan, Birney & Kramer, P.C.
Marcelo Emmanuel
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