Patent ID: 7025385

Claim:
A coupling comprising: a first member having an axial end with an outer circumferential surface having an outer first diameter, a first interlocking member extending radially outward from the outer circumferential surface, the first member including a body portion axially spaced from the first interlocking member, the body portion having an outer diameter greater than the outer first diameter of the outer circumferential surface, wherein the first interlocking member is a portion of an L-shaped protrusion from the outer circumferential surface; a second member having an axial end with an inner circumferential surface having an inner second diameter, a second interlocking member extending radially inward from the inner circumferential surface, wherein the second interlocking member is a portion of an L-shaped protrusion from the inner circumferential surface; at least one of the first and second members including a keyway; the outer circumferential surface insertable into the inner circumferential surface such that the first interlocking member is inserted past the second interlocking member, the first member and second member then being rotatable relative to one another to a locked angular orientation in which the first interlocking member is interlocked with the second interlocking member to prevent relative axial movement of the first member relative and the second member, a key being insertable into the keyway when the first and second members are in the locked angular orientation to prevent rotation of the first member and second member relative to one another.