Positive lock pin

Joints and connections – Manually releaseable latch type – Having operating mechanism

Reexamination Certificate

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Details

C403S325000, C403S326000, C411S348000, C024S607000

Reexamination Certificate

active

06893184

ABSTRACT:
A positive lock pin for locking a plurality of objects together includes an upper housing in communication with a handle housing. The handle housing has a shaft member located therein. The shaft member is rotatable with respect to the handle housing and has a slot formed in an upper portion thereof. The shaft member also has a pair of recesses formed therein. The shaft member is in communication with a pair of retention mechanisms disposed within the handle housing. Each of the pair or retention mechanisms is in communication with a respective opening formed in the handle housing. The pair of retention mechanisms are moveable between a locked position where an outermost point thereof extends outwardly from a respective opening and an unlocked position wherein the outermost point does not extend outwardly from the respective opening and a respective retention mechanism rests in one of the recesses. The movement of the retention mechanisms occurs upon rotation of the slot and the shaft member.

REFERENCES:
patent: 691765 (1902-01-01), Hayes
patent: 2402925 (1946-06-01), Spooner
patent: 2599207 (1952-06-01), Spahr et al.
patent: 3046827 (1962-07-01), Myers
patent: 3145441 (1964-08-01), Strandrud
patent: 3390712 (1968-07-01), McKay
patent: 3477333 (1969-11-01), Boyd et al.
patent: 3936203 (1976-02-01), Lowder et al.
patent: 5100256 (1992-03-01), Estep
patent: 5233770 (1993-08-01), Robinson
patent: 5437515 (1995-08-01), Kuramoto et al.
patent: 5772355 (1998-06-01), Ross et al.
patent: 6152645 (2000-11-01), Sanford
patent: 6158917 (2000-12-01), Wolin et al.
patent: 2708058 (1995-01-01), None

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