Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Portable self-contained
Patent
1992-02-10
1993-05-25
Mis, David
Electric lamp and discharge devices: systems
Combined load device or load device temperature modifying...
Portable self-contained
315129, 315170, 315176, 362157, H05B 3700
Patent
active
052143538
ABSTRACT:
Connected in circuit between a regular two-cell battery and the light bulb in an otherwise ordinary flashlight is an auxiliary voltage source, such as a third battery cell of relatively small size. The bulb is normally powered directly from the regular two-cell battery. However, if a boost in light output is desired for a brief period of time, the auxiliary voltage source is connected in series with the two-cell battery. Switching is accomplished by way of a slide switch that has an OFF-position, an ON-position, and a spring-loaded BOOST-position. In the BOOST-position, the auxiliary voltage source is coupled in series with the two-cell battery, thereby boosting the RMS magnitude of the voltage applied to the light bulb by a factor of as much as 1.5; which, in turn, boosts the light output by a factor of about 4.0. To prevent substantial shortening of the overall life of the light bulb, since the life of the light bulb would be shortened by a substantial factor if being supplied with 1.5 times its normal voltage on a continuous basis, the boost feature should be used only on an occasional basis, such as for ten seconds at a time.
REFERENCES:
patent: 4499525 (1985-02-01), Mallory
patent: 4757238 (1988-07-01), Rhee
patent: 5027035 (1991-06-01), McGrail et al.
patent: 5107180 (1992-04-01), Ormanns et al.
LandOfFree
Flashlight with boost feature does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flashlight with boost feature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flashlight with boost feature will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-899920