Deposit and collection receptacles – Letter boxes – Signals
Patent
1984-07-24
1985-11-12
Swiatek, Robert P.
Deposit and collection receptacles
Letter boxes
Signals
A47G 2912
Patent
active
045523029
ABSTRACT:
A mailbox characterized by a box provided with a hinged door, and a pair of indicator flags pivotally attached to opposing sides of the box. The indicator flags are spring loaded such that one of the flags is biased towards an upright position, and the other flag is biased towards a horizontal position. Spring loaded links are attached to each of the flags to engage a pair of studs provided on opposing sides of the mailbox door. The links are adapted to hold the flags until the door is opened, at which time the flags will rotate to their biased positions.
REFERENCES:
patent: 2078160 (1937-04-01), Reed
patent: 2098242 (1937-11-01), Holmes
patent: 2693314 (1954-11-01), Hunter
patent: 2812130 (1957-11-01), Abell
patent: 3331552 (1967-07-01), Shultz
patent: 3572581 (1971-03-01), McLeod
patent: 4113170 (1978-09-01), Hunsicker
Hickman Paul L.
Swiatek Robert P.
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