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US 7,017,887 B1Granted
Winch for boat trailer
AssigneeCampbell Hausfeld/Scott Fetzer Company
InventorDavid C. Verakis
Life of this patent
Estimating the term…
Abstract
A low-amp winch for use on boat trailers is provided with a higher gear reduction than conventional winches and with a winch cable made of a softer material and shorter length than conventional boat winches to reduce the current draw from the motor. The winch is capable of operating off a seven-pin RV socket which provides 12 volts of DC power at no greater than 30 amps.
Claims10
A winch for operating off a 12-volt DC power supply so as to draw fewer than 30 amps comprising in combination:
- a motor having an output shaft with a first gear;
- a first gear pair having a second gear for meshing with said first gear and a third gear, said second gear having a greater diameter than said first gear and said third gear having a smaller diameter than said second gear, said second and third gears being operatively interconnected to rotate in unison;
- a second gear pair having a fourth gear meshed with said third gear and having a diameter at least as great as said third gear and a fifth gear of a smaller diameter than said fourth gear, said fourth and fifth gears being operatively interconnected to rotate in unison;
- a sixth gear meshed with said fifth gear, said sixth gear having a greater diameter than said fifth gear;
- a seventh gear having a smaller diameter than said sixth gear and adapted to be rotated in unison with said sixth gear;
- an eighth gear meshed with said seventh gear and having a diameter greater than said seventh gear;
- a spool operatively connected to said eighth gear to rotate in unison therewith;
- and
- a compressible, flexible cable made of a synthetic material having one end anchored to said spool, said cable being wrappable about said spool upon energization of said motor.
6 more elements
Dependencies are inferred from the claim text.