Patent ID: 9226622
Filing Date: 2016-01-05
CPC Classification: A47K,E05B,E05C,Y10T

Claim Text:
1. A two point door latch device, comprising: a master latch assembly having (a) an outer housing, (b) a handle adapter that rotatably extends into the outer housing, (c) a master bolt with proximal end and a distal end, the master bolt slidably passing into the outer housing, the proximal end having a guide pin, (d) a cam plate with a rotation hole, an arch shaped slot with a first terminal end and a second terminal end, the first terminal end being further away from the rotation hole than is the second terminal end, and a master pivot, wherein the cam plate is rotatably retained within the outer housing and is rotationally connected to the handle adapter via the rotation hole in the cam plate, and (e) a tension spring that connects between the master bolt and the housing, which tension spring tends to bias the master bolt into the housing and rotate the cam plate to exert a pulling force on the linkage connected to the cam plate and tends to pull the auxiliary bolt into the bracket assembly and into an unlocked position, and wherein the guide pin of the master bolt slides in the arch shaped slot of the cam plate between the first terminal end of the arch-shaped slot wherein the master bolt moves into the outer housing, and the second terminal end of the arch-shaped slot wherein the master bolt moves out of the outer housing; an auxiliary latch assembly having (a) a bracket assembly with a bottom wall and an upper end, (b) an auxiliary bolt with a proximal end having an auxiliary pivot thereon, and a distal end, the auxiliary bolt being slidable in the bracket assembly with proximal end extendable above the upper end of the bracket and the distal end extending below the bottom wall of the bracket assembly, and (c) a compression spring, which compression spring tends to bias the auxiliary bolt into the bracket assembly and exerts a pushing force on the linkage connected to the auxiliary pivot, thereby also tending to rotate the cam plate of the master latch assembly to draw the master bolt into the outer housing; and a separate linkage that connects between the master pivot of the master latch assembly and the auxiliary pivot of the auxiliary latch assembly and permits customizable spacing and alignment of the master latch assembly relative to the auxiliary latch assembly, wherein activation of the master latch assembly activates the auxiliary latch assembly, and wherein if either the guide pin or cam plate breaks then the tension spring will draw the master bolt back into the outer housing and if the linkage breaks, the compression spring will move the auxiliary bolt into the bracket assembly.