Jane L Alexander

US Patent:

7325749, Feb 5, 2008

Filed:

Dec 17, 2003

Appl. No.:

10/738352

Inventors:

Jane C. Alexander - Rogersville AL, US
David E. Howard - Hazel Green AL, US
Dennis A. Smith - Athens AL, US

Assignee:

United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

F16K 37/00
G05F 3/00

US Classification:

236 78A, 236 493, 323299, 323318

Abstract:

A self-contained power controller having a power driver switch, programmable controller, communication port, and environmental parameter measuring device coupled to a controllable device. The self-contained power controller needs only a single voltage source to power discrete devices, analog devices, and the controlled device. The programmable controller has a run mode which, when selected, upon the occurrence of a trigger event changes the state of a power driver switch and wherein the power driver switch is maintained by the programmable controller at the same state until the occurrence of a second event.