Latch for sliding closures

Details Latch for sliding closures Latch for sliding closures

2007-09-25

2007-09-25

Estremsky, Gary (Department: 3676)

Closure fasteners

Bolts

Sliding

C292S173000

Reexamination Certificate

active

10839820

ABSTRACT:
Latch assembly of a keeper structure and a latch structure has a frame a frame recess, a guide pin received in said frame recess for oscillating rotation, the guide pin having a handle tab for rotating the guide pin and a dog projecting from said guide pin. A latch tongue is slidably mounted in a latch tongue guide and has a tongue dog cooperating structure for advancing and retracting the latch tongue responsive to rotation of the dog on the guide pin. The guide pin is spring biased to project the latch tongue toward the latch structure. The dog cooperating structure and dog are relatively proportioned to permit rearward movement of the latch tongue without commensurately moving the handle tab upon displacing engagement of the keeper structure and the latch tongue but to move the handle tab and latch tongue together in forward movement of the latch tongue into keeper structure latching engagement. The latch assembly can further have a keeper structure and a latch structure including latch tongue and handle and guide pin carried cooperating dogs. The latch tongue dogs and the guide pin dogs are relatively proportioned to permit rearward movement of the latch tongue without commensurately moving the handle upon displacing engagement of the keeper structure and the latch tongue but to move the handle and latch tongue together in forward movement of latch tongue into keeper structure latching engagement. A secondary latch assembly selectively blocks handle movement in the locked condition of the primary latch assembly.

REFERENCES:
patent: 2749167 (1956-06-01), Love
patent: 2758862 (1956-08-01), Endter
patent: 4231597 (1980-11-01), Pelcin
patent: 5292159 (1994-03-01), Sandhu et al.
patent: 5484178 (1996-01-01), Sandhu et al.
patent: 2002/0163205 (2002-11-01), Sekulovic

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