Patent ID: 7506796

Claim:
A transmitter mechanism for indicating when mail has been deposited in a mailbox having a pivotable door, wherein said mechanism indicates the arrival of mail by transmitting a signal to a remote receiver when said door has been opened, said mechanism comprising: a) a tilt switch including a ball or mercury, said tilt switch connected to a circuit board to transmit said signal; b) an enclosure having a mounting base affixed to said door, said door hinged to said mailbox such that said tilt switch positioned within said enclosure is activated when said mailbox door is opened; c) a turning knob with internal bores respectively receiving a portion of said enclosure and a portion of a tilt switch holder, said knob being turnable to select a predetermined angle setting of said tilt switch, said turning knob having an indicator pointer on an external circular surface thereof; d) said tilt switch holder with an internal bore receiving said tilt switch, and said portion defining a circular stem attached to said turning knob and to said enclosure; e) indicia on a top surface of the enclosure opposite said mounting base for indicating the proper mounting orientation of said enclosure on said door such that said tilt switch is activated when said mailbox door is opened; and f) indicia on an external side surface of the enclosure for indicating the position of said knob such that said indicator pointer is set to an indicated position corresponding to said predetermined angle setting of said tilt switch whereby said tilt switch will be activated when said door of said mailbox is opened.