Patent ID: 7185929
Filing Date: 2007-03-06
Classification: E05B,Y10T

Abstract:
1. Door knob having light-emitting location indicator and door, comprising: a) a vertically inclined door; b) a door latch mounted in the door; c) a shaft for controlling the door latch; the shaft having a main, rotational axis; the rotational axis extending orthogonally away from a main surface of the door; d) a door knob held to the shaft and comprising protective translucent material; e) at least one object comprising light-emitting material that either phosphoresces or luminesces, without an electrical power source, mounted within the knob and being visible through the protective translucent material; f) the at least one object being sized sufficiently smaller from the size of the protective translucent material so that the at least one object appears as different from said protective translucent material; g) the light-emitting material being designed to emit light in a darkened space to thereby visually indicate the location of the knob in the darkened space; and h) the at least one object being sufficiently surrounded by the protective translucent material as to appear floating within the protective translucent material as viewed in a direction parallel to said main surface.