Patent ID: 9663216
Date: 2017-05-30
CPC Classifications: B64C,E05B,E05C

Claim:
1. A locking latch, comprising: a housing; a bolt affixed to the housing rotatable between open and closed positions; lock means located within a cylinder in the bolt for locking the bolt in the closed position, said lock means comprising a tumbler having a top, a bottom, and a barrel portion closely fitted within said cylinder, said tumbler selectively rotatable between locked and unlocked positions; a plunger located within a longitudinal bore of said tumbler barrel, said plunger axially reciprocal within said bore between a depressed and a released home position; a radially extending key integral with said plunger; a longitudinal slot in the side of the tumbler barrel through which the plunger key outwardly projects; a keyway in a sidewall of the bolt cylinder into which said key extends which restricts movement of the key, wherein only upon a maximum depression of the plunger is the tumbler barrel free to rotate between the locked and unlocked positions; means for engaging said housing on a bottom portion of the tumbler to lock the bolt closed; and wherein said keyway comprises a bottom most lateral arcuate portion and first and second longitudinal upwardly extending grooves.