Mailbox deposit indicator system

Details Mailbox deposit indicator system Mailbox deposit indicator system

1992-07-30

1993-08-24

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340569, 232 35, 232 36, G06B 108, H04Q 700

Patent

active

052393054

ABSTRACT:
A system for indicating the deposit of mailing mailbox comprises a two channel transmitter positioned within a mailbox and a two channel receiver positioned within a household. The first channel of the system provides a means for indicating at the receiver the opening of the mailbox door (deposit of mail) and the second channel of the system provides a means for resetting the indication of a deposit of mail. The transmitter and receiver both have means for resetting the indication of a deposit of mail. The transmitter has a spring clip for attachment to the mailbox.

REFERENCES:
patent: 3222665 (1965-12-01), Tracy
patent: 3556394 (1971-01-01), Caldes
patent: 3572581 (1971-03-01), McLeod
patent: 3611333 (1971-10-01), Conigliaro
patent: 3707260 (1972-12-01), Gelineau, Sr. et al.
patent: 4372482 (1983-02-01), Clerigues
patent: 4520350 (1985-05-01), Huang
patent: 4794377 (1988-12-01), Benages

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