Deposit and collection receptacles – Letter boxes – Signals
Patent
1988-08-12
1989-03-14
Gibson, Jr., Robert W.
Deposit and collection receptacles
Letter boxes
Signals
232 34, B65D 9100
Patent
active
048118958
ABSTRACT:
A gravity operated mailbox signaling device which is actuated by opening the mailbox door, is resettable by one hand of an operator, and comprises a minimum number of parts, namely, an elongated signal arm in the form of a U-shaped channel and a single, bar-shaped member of considerable mass and weight. The arm is pivotably attached intermediate its ends to the mailbox; and, the member is pivotably attached to the non-signaling end of the arm and is disposed substantially interiorly of the U-shaped channel. The member coacts with a bracket mounted on the mailbox door to hold the signal arm in its non-signaling condition and to reset the arm after the same has been operated to its signaling condition. The member also shifts its center of gravity as the arm swings to its signaling condition to help maintain the arm in that condition until it is reset.
REFERENCES:
patent: 1627617 (1927-05-01), Nordin
patent: 2804262 (1957-08-01), Mancuso
patent: 3013715 (1961-12-01), Ferenci
patent: 3084853 (1963-04-01), Kopp
patent: 4190193 (1980-02-01), Smith
patent: 4756472 (1988-07-01), Hammons
Gibson , Jr. Robert W.
Holloway Joseph W.
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