Patent ID: 9413181
Filing Date: 2016-08-09
CPC Classification: H02J

Claim Text:
1. A universal power pack for powering a device, the power pack comprising: a back-pack mounted master cell comprising a cell bank for receiving at least one battery, a controller circuit for regulating a DC output voltage and current of said at least one battery, said regulated DC voltage and DC current available at an output of said master cell; a helmet mounted slave cell comprising an input, a recharging circuit connected to said input for recharging a rechargeable cell with a DC power available at said input, a DC power output connected to the helmet mounted device and a switching circuit for directing a selected one of said DC power available at said DC power input and DC power available from said rechargeable cell to said DC power output; and a flexible two conductor cable for releasably interconnecting said master cell output and said slave cell input, said flexible cable further comprising an insulating jacket surrounding said conductors; a first interconnection between a first end of said flexible two conductor cable and one of said master cell output and said slave cell input and a second interconnection between a second end of said flexible two conductor cable and another of said master cell output and said slave cell input, said second interconnection comprising a jack and a port, wherein said jack is releasably held in said port such that said second interconnection can be interrupted by pulling said jack away from said port and completed by inserting said jack into said port; wherein when said interconnections are completed and power is available at said slave cell input, said switching circuit interconnects said slave cell input with said slave cell output such that the at least one helmet mounted device is powered by a DC power from said master cell and when at least one of said interconnections is interrupted and power is not available at said slave cell input, said switching circuit interconnects said rechargeable cell with said slave cell output such that the at least one helmet mounted device is powered by a DC power from said slave cell.