Mechanical door chime powered by motion of the door
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United States of America Patent
Stats
-
Aug 19, 1986
Grant Date -
N/A
app pub date -
Feb 13, 1984
filing date -
Feb 13, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mechanical door chime powered by movement of a pivoting door in a frame includes means for mechanically storing energy, means for producing sound operatively coupled to the output of the energy storing means, a rigid inclined surface coupled to the door or its frame, a base mounted proximate the pivoting junction between the door and its frame opposite the surface with a rigid plunger having a rotating contact arbored at one end, where the plunger is restrained to slide rectilinearly in said base, the rotating contact at it's end abutting against the rigid surface coupled to the door as the door pivots open causing linear movem ent of the plunger relative to the base as the door is opened, and means coupling the plunger to the energy storing means for energizing the energy storing means responsive to the liner movement of the plunger.
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Family
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