Trailer stabilizing jack

1. A trailer stabilizing jack comprising:

an extendable column;

a support arm comprising a first end connected to said extendable column and a second end remote from said extendable column, said second end comprising a connection means to a trailer kingpin;

a base connected to said extendable column at the end of said extendable column opposite said support arm;

at least one primary wheel mounted to said base;

a support frame comprising a third end connected to at least one of said base and said extendable column, and further comprising a cantilevered fourth end opposite said third end, wherein said fourth end extends substantially in the direction of said second end;

a support wheel mounted to said fourth end, wherein said support wheel comprises a smaller diameter than said primary wheel and is vertically offset from said primary wheel;

wherein said second end extends beyond a plane defined by the tangent of the circumference of said support wheel.

2. A trailer stabilizing jack comprising:

an extendable column;

a support arm comprising a first end connected to said extendable column and a second end remote from said extendable column, said second end comprising a connection means to a trailer kingpin;

a handle extending opposite said support arm and said support wheel, said handle extending from at least of said base and said extendable column;

a base connected to said extendable column at the end of said extendable column opposite said support arm;

at least two primary wheels mounted to said base, wherein at least a first primary wheel is mounted on a first side of said base, and at least a second primary wheel is mounted on a second side of said base opposite said first side;

a support frame comprising a third end connected to at least one of said base and said extendable column and a fourth end remote from said third end, wherein said fourth end extends at least in the general direction of said support arm and is not connected to said base or said extendable column; and

a support wheel mounted to said support frame fourth end, wherein said support wheel is vertically offset from said at least two primary wheel wheels, and wherein said second end of said support arm extends beyond said support wheel;

wherein said jack can be placed into a configuration for maneuvering by tilting said jack onto said support wheel.

3. The jack of claim 2 , wherein said extendable column is extended to increase the height of the jack or retracted to decrease the height of the jack by a crank.

4. The jack of claim 2 , wherein said extendable column further comprises a transverse locking pin for selectively locking the height of extension of said extendable column.

5. The jack of claim 1 , wherein said extendable column is extended to increase the height of the jack or retracted to decrease the height of the jack by a crank.

6. The jack of claim 1 , wherein said extendable column further comprises a transverse locking pin for selectively locking the height of extension of said extendable column.