Patent Number: 6,254,300

Title: Hinge pin and retention sleeve

Abstract: A hinge pin and retention sleeve to be used as part of a coupling assembly. The coupling assembly includes two chain half-links, the hinge pin, and the retention sleeve. The hinge pin has an annular notch with a reduced cross-section. The retention sleeve has a valley with a reduced cross-section. The retention sleeve fits over the hinge pin and the valley of the retention sleeve fits into and engages the hinge pin annular notch, preventing the hinge pin from moving laterally with respect to the sleeve. Ends of the sleeve nearly abut the chain half-links, with a slight gap between the ends and the chain half-links. The sleeve is restricted from substantial lateral movement by inner faces of the chain half-links. The hinge pin annular notch and the retention sleeve valley are located in the center portion of the hinge pin and retention sleeve, respectively, away from the high-stress areas near the chain half-links.

Inventors: Crow; Stephan M. (Broken Arrow, OK)

Assignee: The Crosby Group, Inc.

International Classification: F16G 15/00 (20060101); F16G 15/02 (20060101); F16G 013/06 ()

Expiration Date: 07/03/2018