Patent ID: 11959333
Assignee: ALCHIN LONG GROUP IP PTY LIMITED
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A louvre window having:
a frame, the frame having a head, a sill and at least two jambs;
a drive bar located in one or both of the jambs that is movable by a handle;
a plurality of blades located within the frame and connected to the drive bar by a pivot drive connector, such that movement of the drive bar urges the blades to pivot, each blade having:
a first windowpane attached to the blade; and
a second windowpane attached to the blade,

wherein operation of the handle causes movement of the blades between an open position and a closed position, wherein in the closed position the first windowpanes are aligned to form a barrier against airflow and the second windowpanes are aligned to form a barrier against airflow and in the open position the first windowpanes are pivoted out of alignment to allow airflow and the second windowpanes are pivoted out of alignment to allow airflow;
wherein the drive bar includes a pair of link bars and the pivot drive connector is connected to a respective link bar at opposite sides of the pivot drive connector such that differential translation of the link bars causes pivoting of the pivot drive connector; and
wherein the link bars each have an upper and a lower recess for each pivot drive connector at an interior edge thereof, and the pivot drive connector has a boss that conforms to each recess, such that when the link bars are differentially translated, the boss releasably snaps into the upper recess of one link bar and the lower recess of the other link bar.