Electricity: circuit makers and breakers – Special application – Actuated concurrently with operation or use of art device
Patent
1995-06-27
1997-03-25
Scott, J. R.
Electricity: circuit makers and breakers
Special application
Actuated concurrently with operation or use of art device
200 1V, 200 16A, 200243, 200298, H01H 906, H01H 1370, H01H 1502
Patent
active
056147015
ABSTRACT:
A control switch for an electric winch includes a handle, a set of forward and reverse push button switches and a switch box. The switch box includes a top cover and a bottom cover. The top cover is provided with a set of polarize conducting plates for DC voltage and another set of polarized conducting plates for motor wiring. The bottom cover is provided with two grooves for holding two sliding blocks, respectively. Each of the two sliding blocks is provided with conducting wipers and springs. The movement of the sliding blocks corresponds to the pushing of the forward button or the reverse button. Thus when one of the buttons is pushed, a circuit connection inside of the switch box is changed, providing control of the coiling, uncoiling and braking of a winch cable.
REFERENCES:
patent: 2713092 (1955-07-01), Rucks et al.
patent: 3086090 (1963-04-01), Carroll
patent: 3733451 (1973-05-01), Kiessling
patent: 4896558 (1990-01-01), Meier et al.
patent: 5283406 (1994-02-01), Olsen
patent: 5349148 (1994-09-01), Hung
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