Geometrical instruments
Patent
1979-06-07
1980-06-10
McGlynn, Joseph H.
Geometrical instruments
H01R 1354
Patent
active
042069610
ABSTRACT:
A device which prevents the accidental disconnection of electrical cord connector ends from one another as found in extension cords and power tools comprises an elongated rod having closely spaced resilient convolutions forming coils on either end thereof. The extension cords on either side of their connected ends are engaged between the convolutions thereby preventing the accidental disconnection of the connector ends from one another.
REFERENCES:
patent: 1914993 (1933-06-01), D'Olier
patent: 2721313 (1955-10-01), English
patent: 3922055 (1975-11-01), McGregor
Brown John S.
Harpman Webster B.
McGlynn Joseph H.
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