Patent ID: 9206829
Filing Date: 2015-12-08
Classification: B66C,F16B

Abstract:
1. A retaining pin assembly for a lifting system wherein said lifting system includes a hook prong and a hook cam, said retaining pin assembly comprising: at least one lock arm having a first end with at least one aperture which aligns with an opening through said hook cam and having an opposed second end with at least one aperture which aligns with an opening through said hook prong; a hook cam retaining pin having a head and having a shaft passing through said hook cam opening and said lock arm first end aperture, wherein said shaft has at least one groove therein parallel to the axis of said shaft which move extends to said head of said retaining pin and wherein said hook cam retaining pin has external threads which mate with threads in said hook cam aperture; a retaining ring surrounding said hook cam retaining pin shaft; said retaining ring having at least one inwardly extending tab received in said at least one shaft groove adapted to retain said hook cam retaining pin in said lock arm; and a recess in said lock arm adapted to receive said hook cam retaining ring therein when said hook cam retaining pin is axially retracted.