Abstract: A self-closing invisible hinge for returning a door to its closed position from its opened position including a self-closing structure in which the closing force can be selectively adjusted externally at the hinge and in which the self-closing structure is compact. The self-closing invisible hinge further having an embedded wiring system for providing electrical communication between an area on or in the door and an area adjacent a mounting structure supporting the door, such as a building electrical and/or communication system.
Abstract: The door latch mechanism independently operated by first and second handles of the door handle assembly comprising a cam member having a cam surface which facilitates translation of movement of the handles to displacement of the cam member. The cam member can be coupled to a latch member and move the latch member between an extended and retracted position. A door lock mechanism can prevent displacement of the second door handle while simultaneously allowing displacement of the first door handle.
Abstract: A self-closing invisible hinge for returning a door to its closed position from its opened position including a self-closing structure in which the closing force can be selectively adjusted externally at the hinge and in which the self-closing structure is compact. The self-closing invisible hinge further having an embedded wiring system for providing electrical communication between an area on or in the door and an area adjacent a mounting structure supporting the door, such as a building electrical and/or communication system.