Patent ID: 7077437
Filing Date: 2006-07-18
Classification: E05B,Y10S,Y10T

Abstract:
1. An integrated door lock handle and trim assembly having a retractable spindle for operating a mortise door lock comprising: a door lock handle having a support shoulder and external threads at the end of the handle and an axial blind opening in the handle for accommodating an elongated spring and an elongated spindle; a cover having a base and a door facing outer lip around the base periphery and an internal threaded through opening in the base and the base rests against the shoulder of the door lock handle; a mounting plate sized to fit within the outer lip and having a through opening with a lip having external threads which are to be threaded with the internal threads of the opening in the base of the cover the through opening of the mounting plate sized to allow the cover and threaded mounting plate to rotate freely on the handle; a cap nut having a through opening with internal threads which are to be threaded with the external threads of the handle forming an integral assembly of the handle, cover, mounting plate and cap nut; an elongated spring disposed within the axial opening of the handle having a front end and a rear end resting against the end of the blind opening; and an elongated spindle sized to extend through the cap nut opening, mounting plate opening and the axial opening in the handle and having a front end shaped to engage and operate the door lock and a rear end which is secured to the front end of the spring; elongated support pins having an enlarged end held in the assembly between the mounting plate and cover base with the free ends of the pins extending axially through support pin openings in the mounting plate; and a spring disposed between the enlarged ends of the support pins and the base of the cover and contacting the enlarged ends of the elongated support pins; whereas the spindle can be retracted within the axial opening decreasing the effective length of the spindle enabling the assembly to be used for doors of varying thicknesses.