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Asphalt heater

  • US 20030170075A1
  • Filed: 03/13/2003
  • Published: 09/11/2003
  • Est. Priority Date: 06/02/1998
  • Status: Active Grant
First Claim
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1. A tongue jack for a trailer comprising:

  • a rotatable collar fixed to a tongue of a trailer;

    a wheel attached to the rotatable collar such that the wheel is contactable with the ground and supports the trailer when in contact with the ground;

    means for raising and lowering the wheel;

    a motor operationally connected to the wheel; and

    means to control speed and direction of the motor.

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