Mechanical door chime powered by motion of the door

Details Mechanical door chime powered by motion of the door Mechanical door chime powered by motion of the door

1984-02-13

1986-08-19

Frankfort, Charles

Signals and indicators

Alarms

Closure operated

116141, G08B 302

Patent

active

046062955

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.

REFERENCES:
patent: 312806 (1885-02-01), Bruen
patent: 378317 (1888-02-01), Iske
patent: 414124 (1889-10-01), Rockwell
patent: 430040 (1890-06-01), Rockwell
patent: 492070 (1893-02-01), Van Wormer
patent: 755568 (1904-03-01), Fuller
patent: 4098221 (1978-07-01), Mickelson

Affiliated with

Also associated with

Rating

Mechanical door chime powered by motion of the door does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mechanical door chime powered by motion of the door, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanical door chime powered by motion of the door will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-388984