JEFFREY W HAINS
Electrician at Parker Oaks Dr, Arlington, TX
License number
Texas 6930
Expiration Date
Mar 29, 2017
Category
Journeyman Electrician
Address
Address
3907 Parker Oaks Dr, Arlington, TX 76016
Phone
(469) 235-9275
Professional information
Portable Power Supply With Safety Switch
US Patent:
2005012, Jun 9, 2005
Filed:
Dec 3, 2003
Appl. No.:
10/725515
Inventors:
Max Beasley - Plano TX, US
Jeffrey Hains - Arlington TX, US
Jeffrey Hains - Arlington TX, US
International Classification:
H02H003/24
US Classification:
361090000
Abstract:
A portable electric power supply with a main contactor relay connected in electrical series with a manual safety switch and voltage sensing relay contactor between the neutral conductor and a power conductor of the power supply. A voltage sensing relay detects the voltages in the power supply and turns on the voltage sensing relay contactor when the voltages reach a minimum value. The safety switch is wired in parallel with a latching contactor. The main contactor relay activates a main power contactor and the latching contactor when the voltage sensing relay contactor and one or both of the safety switch and latching contactor are activated, and deactivates the main power contactor and latching contactor when the voltage sensing relay contactor is deactivated. When activated, the main power contactor connects power outlets to the neutral conductor and power conductors.