Patent ID: 6142501
Filing Date: 2000-11-07
Classification: B60S

Abstract:
A recreational vehicle jack remote control for aftermarket attachment to and use with a recreational vehicle trailer having a pair of jacks for supporting the front of the trailer, at least one electric motor for raising and lowering the jacks, and an electrical control circuit including a switch having an up position for raising the jacks, a down position for lowering the jacks, and an off position, the remote control comprising:a) a transmitter having an up button and a down button, the transmitter emitting a first radio frequency signal in response to pressing the up button, and emitting a second radio frequency signal in response to pressing the down button;b) at least one receiver, the at least one receiver being adapted for aftermarket installation in a recreational vehicle trailer by electrical connection to the switch in the recreational vehicle trailer electrical control circuit, the at least one receiver being adapted for receiving said first and second radio frequency signals;c) at least two relays, each relay having a relay coil electrically connected to said at least one receiver and having a plurality of switchable contacts;d) wherein the plurality of contacts on said at least two relays is adapted for simultaneously bypassing the contacts of the switch in the recreational vehicle trailer's electrical control circuit in order to apply voltage to the at least one electric motor in a proper polarity for raising the pair of jacks supporting the trailer in response to said first radio frequency signal; ande) wherein the plurality of contacts on said at least two relays is adapted for simultaneously bypassing the contacts of the switch in the recreational vehicle trailer's electrical control circuit in order to apply voltage to the at least one electric motor in a proper polarity for lowering the pair of jacks supporting the trailer in response to said second radio frequency signal.