Load status indicator

Details Load status indicator Load status indicator

2008-01-01

2008-01-01

Crosland, Donnie L. (Department: 2612)

Communications: electrical

Visual indication

C340S635000, C340S657000, C340S650000, C340S661000, C340S664000, C361S093100, C361S088000, C361S090000

Reexamination Certificate

active

11107449

ABSTRACT:
A load status indicator is disclosed wherein a green light-emitting diode of a bi-color light-emitting diode lights up when power is available to but not being used by a monitored device, whereas a red light-emitting diode of the bi-color light-emitting diode lights up when the monitored device is drawing current. The load status indicator utilizes a coil in series with the monitored device, a reed switch controlled by the coil, and field-effect transistors to control which light-emitting diode lights up depending on whether power is available and whether the monitored device is drawing current.

REFERENCES:
patent: 3644886 (1972-02-01), Sabaroff
patent: 4055831 (1977-10-01), Sakurai et al.
patent: 4311994 (1982-01-01), Kuribayashi
patent: 4394647 (1983-07-01), Van Dine
patent: 4401972 (1983-08-01), Lupoli
patent: 4447806 (1984-05-01), Gundel et al.
patent: 4797608 (1989-01-01), White
patent: 5070301 (1991-12-01), Schweitzer, Jr.
patent: 5757275 (1998-05-01), Mowry, Jr.
patent: 6075448 (2000-06-01), Verkhovskiy
patent: 6720883 (2004-04-01), Kuhr et al.
patent: 6828915 (2004-12-01), Gottlieb
patent: 2005/0248897 (2005-11-01), Sadjadi
patent: 2006/0244620 (2006-11-01), Sotiriou

Affiliated with

Also associated with

Rating

Load status indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Load status indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load status indicator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3932037