Mailbox signal flag

Details Mailbox signal flag Mailbox signal flag

1991-01-24

1992-01-21

Smith, Gary L.

Deposit and collection receptacles

Letter boxes

Signals

B65D 9100

Patent

active

050821709

ABSTRACT:
A device is provided for automatically signalling the opening of the door of a conventional mailbox. The device consists of a stationary member that pivotably interacts with a signal member. The stationary member attaches to the mailbox using existing holes intended to accommodate a conventional manually operated mailbox signal flag. A torsion spring housed within the device causes the signal member to be urged to a vertical position when the door of the mailbox is opened.

REFERENCES:
patent: 842767 (1907-01-01), Clark
patent: 2551915 (1951-05-01), Turner
patent: 2693314 (1954-11-01), Hunter
patent: 2939629 (1960-06-01), Barkdoll
patent: 3301475 (1967-01-01), Clark
patent: 3482543 (1969-12-01), Guidos
patent: 3516383 (1970-06-01), Goodman
patent: 3750939 (1973-08-01), Halleh
patent: 4113170 (1978-09-01), Hunsicker
patent: 4147292 (1979-04-01), Fisher
patent: 4986467 (1991-01-01), Bibbee

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