Trailer jack

FIG. 1 is a front perspective view of a trailer jack showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is an enlarged side elevational view of the upper housing of the tailer jack, it being understood that the upper housing of the jack is shown separately for convenience of illustration;

FIG. 4 is a front elevational view of FIG. 3;

FIG. 5 is a rear elevational view of FIG. 3; and,

FIG. 6 is a top plan view of FIG. 3.