H - Electricity – 04 – M
Patent
H - Electricity
04
M
349/59
H04M 1/22 (2006.01) H04M 1/21 (2006.01)
Patent
CA 2034409
A telephone handset includes a light bulb and has a special switch that allows the light to automatically illuminate upon using the phone. The switch changes from an open position to a closed one upon a change in its orientation relative the force of gravity. One embodiment of the switch includes a hollow chamber having two separate contact plates disposed at one end and a freely sliding conductive member that comes into contact with the contacts upon picking up the phone. A second switch embodiment includes three parallel pins with a central one of the pins having a hanging pivoting member that serves to contact one of the other pins upon a change in gravitational orientation. Also included is a removable socket member to facilitate replacement of the bulb.
Archer David D.
Mcfadden Fincham
LandOfFree
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