Disclosed herein is a mechanism (10) for transmitting a torque applied to a handle (12). The mechanism (10) comprises a torque transmitter (18). The torque transmitter (18) is for transmitting the torque applied to the handle (12) coupled thereto. The mechanism (10) comprises a torque transmitter stop (40) within the housing (14). The torque transmitter (18) and the torque transmitter stop (40) are cooperatively arranged for the torque transmitter stop (40) and the torque transmitter (18) to engage to arrest a torque transmitter rotation. The torque transmitter (18) and the torque transmitter stop (40) are cooperatively arranged for the torque transmitter stop (40) and the torque transmitter (18) to disengage when the torque so applied exceeds a predetermined torque value. Also disclosed herein is a method for operating the mechanism (10) for transmitting a torque applied to the handle (12).

A sliding door unit has a mounting frame and an active door panel mounted in and capable of sliding relative to the mounting frame. The active door panel has a face including a panel portion and a glazing portion. The glazing portion comprises less than 65% of a surface area of the face.

A sliding door unit has a mounting frame and an active door panel mounted in and capable of sliding relative to the mounting frame. The active door panel has a face including a panel portion and a glazing portion. The glazing portion comprises less than 65% of a surface area of the face.

A sliding door unit has a mounting frame and an active door panel mounted in and capable of sliding relative to the mounting frame. The active door panel has a face including a panel portion and a glazing portion. The glazing portion comprises less than 65% of a surface area of the face.

A door latch clasp assembly configured for use with a door having a door latch assembly and a door latch plate is provided. The door latch clasp assembly includes a first aperture section having a first aperture. The first aperture section has an arcuate cross-sectional shape. A second aperture section has a second aperture and the second aperture section has an arcuate cross-sectional shape. An intermediate section extends from the first aperture section to the second aperture section. The intermediate section has an arcuate cross-sectional shape and a latch assembly aperture. The arcuate cross-sectional shapes of the first and the second aperture sections and the arcuate cross-sectional shape of the intermediate section are configured to approximate an arcuate cross-sectional shape of a perimeter wall of a face bore of the door.

A door latch system (1) comprises a latch (10) and rose bases (60A,B) which clamp together against a door panel through a cross-drilling in the door panel by screws 80 engaging in bosses (94) above and below the latch body (12). The latch body is supported in the cross drilling by an adaptor (40) which in turn supports sleeve extensions (90) of the rose bases to prevent the rose bases from turning on operation of the handle knob/levers attached to the rose bases. The sleeve extensions are open, (that is, C-shaped in section) so that the diameter of the parts of the system within the cross drilling can be minimised, whereby the diameter of the rose bases can likewise be kept within desirable limits of size.

A door latch system (1) comprises a latch (10) and rose bases (60A,B) which clamp together against a door panel through a cross-drilling in the door panel by screws 80 engaging in bosses (94) above and below the latch body (12). The latch body is supported in the cross drilling by an adaptor (40) which in turn supports sleeve extensions (90) of the rose bases to prevent the rose bases from turning on operation of the handle knob/levers attached to the rose bases. The sleeve extensions are open, (that is, C-shaped in section) so that the diameter of the parts of the system within the cross drilling can be minimised, whereby the diameter of the rose bases can likewise be kept within desirable limits of size.

Disclosed herein is a mechanism (10) for transmitting a torque applied to a handle (12). The mechanism (10) comprises a torque transmitter (18). The torque transmitter (18) is for transmitting the torque applied to the handle (12) coupled thereto. The mechanism (10) comprises a torque transmitter stop (40) within the housing (14). The torque transmitter (18) and the torque transmitter stop (40) are cooperatively arranged for the torque transmitter stop (40) and the torque transmitter (18) to engage to arrest a torque transmitter rotation. The torque transmitter (18) and the torque transmitter stop (40) are cooperatively arranged for the torque transmitter stop (40) and the torque transmitter (18) to disengage when the torque so applied exceeds a predetermined torque value. Also disclosed herein is a method for operating the mechanism (10) for transmitting a torque applied to the handle (12).

Disclosed herein is a latchbolt retractor (12). The latchbolt retractor (12) comprises a latchbolt retraction mechanism (30) mounted to a carriage (28). The latchbolt retraction mechanism (30) comprising a latchbolt assembly coupler (32) for operational coupling to a latchbolt assembly (22). The carriage (28) is configured to slide along at least one rail (14,16) for positioning the latchbolt assembly coupler (32) relative to the latchbolt.

Disclosed herein is a latchbolt retractor (12). The latchbolt retractor (12) comprises a latchbolt retraction mechanism (30) mounted to a carriage (28). The latchbolt retraction mechanism (30) comprising a latchbolt assembly coupler (32) for operational coupling to a latchbolt assembly (22). The carriage (28) is configured to slide along at least one rail (14,16) for positioning the latchbolt assembly coupler (32) relative to the latchbolt.