Abstract: A casement window operator includes a linkage with an extensible arm pivotally connecting to a driven arm mounting to the window frame. An extended end of the driven arm pivotally connects to a link mounting to the sash bracket on the pivoting sash. The extensible arm includes a screw drive member connected to a friction bearing of a cover. Rotation of the screw extends and retracts the cover to lengthen and shorten the extensible arm. The operator includes an actuator with a handle mounted to a first bevel gear intermeshing with a second bevel gear. The bevel gears are mounted in a housing which pivotally rotates as the linkage is actuated. The second bevel gear is coupled to the screw member of the extensible arm.

Abstract: A latch device for securely locking a keeper mounted on a window within a latch housing located on a window frame. The latch includes a locking bolt which is biased into an open position by a spring. The handle is coupled to the bolt through links. Rotation of the handle causes rotation of the bolt which captures and may lift the keeper to accommodate keeper misalignment.

Abstract: A latch apparatus includes a spring pack assembly for returning a latch to its normal non-use position. The spring pack assembly includes a holder portion and a cap for retaining a torsion spring. The holder portion includes retaining members and an annular member extending upward from the base of the holder for retaining and positioning the torsion spring. The adapter portion extends opposite the retaining members and annular member to receive a spindle for actuating the handle. The spring pack assembly inserts under a latch plate on the surface of the door and can be positioned so that the handle can be actuated in either direction and return to its non-use position and so that the handle can be oriented either to the left or right and either pointing upward or downward when not being used.