US 12,325,388 B2 · Trailer jack

Abstract

A trailer jack comprising a vertically oriented vertically extendible jack and a mounting flange located on the jack. The mounting flange includes three bolt patterns. Each of the three bolt patterns includes a forward slot and two rear slots defined through the mounting flange. Each slot includes a longitudinal axis. The longitudinal axes of the slots of any single bolt pattern intersect at a bolt pattern axis that is closer to the forward slot than the rear slots. The longitudinal axes of the forward slots intersect at a central axis. The central axis is offset from each of the three bolt pattern axes. The rear slots of any of the bolt patterns are non-radial with regard to the central axis. The forward slot of any of the bolt patterns are radial with regard to the central axis.

Claims19

Dependent claims

A trailer jack comprising:

a vertically oriented vertically extendible jack;
and
a mounting flange located on the extendible jack, the mounting flange including three bolt patterns, each of the three bolt patterns including a forward slot and two rear slots defined through the mounting flange, each slot including a longitudinal axis, the longitudinal axes of the slots of any single bolt pattern intersecting at a bolt pattern axis that is closer to the forward slot than the rear slots, the longitudinal axes of the forward slots intersecting at a central axis, the central axis being offset from each of the three bolt pattern axes, orientation of the longitudinal axis of each rear slot of the rear slots of any of the bolt patterns being non-radial with regard to the central axis, orientation of the longitudinal axis of the forward slot of any of the bolt patterns being radial with regard to the central axis.

A trailer jack comprising:

a vertically oriented vertically extendible jack;
and
a circular mounting flange located on the extendible jack, the mounting flange including a central axis and nine slots defined through the mounting flange, the nine slots lying on a bolt pattern circle,
each slot including a longitudinal axis, orientation of longitudinal axes of three of the slots being radial with regard to the central axis, orientation of longitudinal axes of six of the slots being non-radial with regard to the central axis, the longitudinal axes of a first and second non-radial slot intersecting at a first offset axis that is offset from the central axis, the longitudinal axes of a third and fourth non-radial slot intersecting at a second offset axis that is offset from the central axis, the longitudinal axes of a fifth and sixth non-radial slot intersecting at a third offset axis that is offset from the central axis, the first, second, and third offset axes being offset from each other.

1 more element

Dependencies are inferred from the claim text.

Trailer jack

Life of this patent

Trailer jack

Life of this patent

Abstract

Claims19