Door locking and operating mechanism

A door locking mechanism for deadlocking a door, said door locking mechanism comprising:

• a lockhead member including a door stopping portion;
• a carriage assembly engaged with the door, said carriage assembly including a driven portion and a following portion;
• a motor driveably engaged with the driven portion of the carriage assembly, said driven portion engaged with said following portion such that said driven portion is movable relative to the following portion for a first portion of a range of movement of the driven portion and said following portion is pulled by said driven portion for a second portion of the range of movement of the driven portion, said driven portion including a surface which engages said door stopping portion of said lockhead member during the first portion of the range of movement of the driven portion thereby moving said door stopping portion such that said following portion of said carriage assembly is pullable by said driven portion during the second portion of the range of movement of the driven portion, thereby moving the door, wherein said lockhead member comprises a plate and said door stopping portion comprises a roller pinned to said plate, further comprising a deadlock lever operatively associated with said lockhead member such that movement of said lockhead member causes movement of said deadlock lever, said deadlock lever including a vertical locking mechanism obstructing portion, said vertical locking mechanism obstructing portion generally aligning with said vertical locking mechanism when said lockhead member is in the locked position whereby said vertical locking mechanism is prevented from being manually disengaged from the door, said vertical locking mechanism obstructing portion generally dis-aligning with said vertical locking mechanism when said lockhead member is moved to the unlocked position thereby providing that said vertical locking mechanism disengages from the door upon the lockhead member moving to the unlocked position;
• and a mechanism plate having a channel defined thereon, wherein said lockhead member is slidable in said channel from the locked position to the unlocked position, wherein said deadlock lever is keyed to said mechanism plate, further comprising a motor control circuit including a first limit switch for sensing said carriage assembly, a second limit switch for sensing said carriage assembly, and at least one indicating device for indicating the position of the door, wherein the first and second limit switches are in communication with the indicating device, wherein said motor control circuit further includes at least one switch which is operable to select which one of the first and second limit switches dictates what status is indicated by the indicating device when the door is in a given position.

A door locking mechanism for locking a door, said door locking mechanism comprising:

• a lockhead member including a door stopping portion, said lockhead member moveable from a locked position wherein the door is locked and an unlocked position;
• a vertical locking mechanism coupled to the lockhead member, said vertical locking mechanism locking said door when said lockhead member is in the locked position, said door stopping portion of said lockhead member also locking said door when said lockhead member is in the locked position;
• a carriage assembly engaged with the door, said carriage assembly including at least one surface for engaging said door stopping portion and moving said lockhead member from the locked position to the unlocked position, wherein said vertical locking mechanism disengages said door when said lockhead member is in the unlocked position and said door stopping portion of said lockhead member also disengages said door when said lockhead member is in the unlocked position;
• and a motor driveably engaged with said carriage assembly but not carried thereby, wherein movement of said carriage assembly causes the carriage assembly to engage the door stopping portion of the lockhead member and move the lockhead member to the unlocked position, further comprising a deadlock lever operatively associated with said door stopping portion of said lockhead member such that movement of said lockhead member causes movement of said deadlock lever, said deadlock lever including a vertical locking mechanism obstructing portion, said vertical locking mechanism obstructing portion generally aligning with said vertical locking mechanism when said lockhead member is in the locked position whereby said vertical locking mechanism is prevented from being manually disengaged from the door, said vertical locking mechanism obstructing portion generally dis-aligning with said vertical locking mechanism when said lockhead member is moved to the unlocked position thereby providing that said vertical locking mechanism disengages from the door upon the lockhead member moving to the unlocked position.