Power cord

Details Power cord Power cord

1990-05-04

1993-08-03

Gaffin, Jeffrey A.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

320 2, 307128, 307150, H02J 900

Patent

active

052332306

ABSTRACT:
An electrical power cord for connecting an a.c. current source to an appliance, and a d.c. current battery power pack connected to the power cord to replace a.c. current when there is a loss of a.c. current. Switches in the battery power pack provide for switching from a.c. to d.c. current. This provides and maintains continuous instant, portable power for appliances.

REFERENCES:
patent: 3201742 (1962-03-01), English
patent: 3530350 (1970-09-01), Gawron et al.
patent: 3766403 (1973-10-01), Tsutsumi
patent: 3968417 (1976-07-01), Dials
patent: 4139880 (1979-02-01), Ulmer et al.
patent: 4620110 (1986-10-01), Cooney
patent: 4957831 (1990-09-01), Meredith et al.

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