Patent ID: 7188684

Claim:
A locking dog comprising. a main body including a polygonal shaped bore, said bore having a bore stop at its terminal end and having a plurality of inner surfaces; a locking pin mechanism, the locking pin mechanism including: a locking pin, said locking pin having a central axis and including a slanted face toward one end of said central axis and having a grasping member toward the opposing end of said central axis, said slanted face being non-perpendicular to said central axis; a support sleeve including a retaining step; and a biasing member for biasing said slanted face of said pin into said bore when said locking pin is positioned within said support sleeve; wherein, when said biasing member is in a first position where said grasping member is not interacting with said retaining step, the plane defined by at least one of said inner surfaces of said bore intersects with said slanted face.