Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Patent
1998-03-24
1999-08-10
Gaffin, Jeffrey
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
361189, 307 71, H01H 4700
Patent
active
059368284
ABSTRACT:
A voltage adaptor outputs 208-220 volts at an outlet and receives two 110 volt inputs. The adaptor has first and second male input connectors that can mate with respective power connectors and a control circuit interconnecting the male connectors to the outlet of the adaptor. The control circuit prevents energizing the outlet unless both male connectors are mated with respective energized power connectors and the phases of the voltages carried by the power connectors are different from each other. Furthermore, the control circuit prevents the energization of one of the male connectors, when it is not mated with a power connector, from the other male connector when the other connector happens to be mated with an energized power connector, thereby preventing a shock hazard that could otherwise arise when one of the male connectors is plugged in but the other male connector remains exposed to the touch.
REFERENCES:
patent: 2138275 (1938-11-01), Heinrich
patent: 2372435 (1945-03-01), La Forest
patent: 3833821 (1974-09-01), Weaver
patent: 3938068 (1976-02-01), Hagan
patent: 3991320 (1976-11-01), Boss
patent: 4053788 (1977-10-01), Robie
patent: 4131805 (1978-12-01), Austin et al.
patent: 4724505 (1988-02-01), Gelbort
patent: 5160852 (1992-11-01), Charles et al.
patent: 5245219 (1993-09-01), Romatzick, Jr. et al.
patent: 5260864 (1993-11-01), Simonelli et al.
patent: 5672066 (1997-09-01), Yeung
Funk George Gerhardt
Nolan James P.
Gaffin Jeffrey
Huynh Kim
James P. Nolan
Rogitz John L.
LandOfFree
110 volt to 200 volt adaptor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with 110 volt to 200 volt adaptor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 110 volt to 200 volt adaptor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1126099