Brightness controllable flashlights

Details Brightness controllable flashlights Brightness controllable flashlights

2005-01-11

2005-01-11

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Automatic substitution of the power supply

C315S24100S, C362S205000

Reexamination Certificate

active

06841941

ABSTRACT:
Flashlights having selectively controllable brightness levels, preferred embodiments of which comprise in combination: a battery; a switch having an OFF position not connected to the battery, a first ON position connected to the battery, and a second ON position connected to the battery; an electrical component (such as a resistor or an inductor) in circuit with the battery when the switch is in its first ON position and not in circuit with the battery when the switch is in its second ON position; a light emitter assembly; and a controller in circuit with the battery, the switch and the light emitter assembly, for detecting whether or not the electrical component is in circuit with the battery when the switch is in either one of its first ON position and its second ON position, and for controlling electrical power to the light emitter assembly for producing a first light output when the electrical component is detected and for producing a second light output when the electrical component is not detected.

REFERENCES:
patent: 1214583 (1917-02-01), Persons
patent: 1226325 (1917-05-01), Geromanos
patent: 1287611 (1918-12-01), Barnes
patent: 1361557 (1920-12-01), Wheat
patent: 1423911 (1922-07-01), Cardwell
patent: 1448352 (1923-03-01), Barany et al.
patent: 1559930 (1925-11-01), Bean
patent: 1889936 (1932-12-01), Shannon
patent: 2097222 (1937-10-01), Thomkins et al.
patent: 2190035 (1940-02-01), Loungway
patent: 2408643 (1946-10-01), Hoy
patent: 3596078 (1971-07-01), Owens
patent: 3999193 (1976-12-01), Hasegawa
patent: 4135230 (1979-01-01), Armbruster
patent: 4211955 (1980-07-01), Ray
patent: 4249234 (1981-02-01), Park et al.
patent: 4290095 (1981-09-01), Schmidt
patent: 4332445 (1982-06-01), Hosono
patent: 4346329 (1982-08-01), Schmidt
patent: 4386391 (1983-05-01), Gulliksen et al.
patent: 4388673 (1983-06-01), Maglica
patent: 4499525 (1985-02-01), Mallory
patent: 4527223 (1985-07-01), Maglica
patent: 4530034 (1985-07-01), Kawarada
patent: 4581686 (1986-04-01), Nelson
patent: 4605993 (1986-08-01), Zelina, Jr.
patent: 4677533 (1987-06-01), McDermott et al.
patent: 4760504 (1988-07-01), Schaller et al.
patent: 4783725 (1988-11-01), Schaller et al.
patent: 4788633 (1988-11-01), Zimermann et al.
patent: 4803605 (1989-02-01), Schaller et al.
patent: 4841417 (1989-06-01), Maglica et al.
patent: 4876416 (1989-10-01), Frantz et al.
patent: 4914555 (1990-04-01), Gammache
patent: 4947291 (1990-08-01), McDermott
patent: 4963798 (1990-10-01), McDermott
patent: 4985813 (1991-01-01), Putman
patent: 5003440 (1991-03-01), Maglica
patent: 5077644 (1991-12-01), Schaller et al.
patent: 5081568 (1992-01-01), Dong et al.
patent: 5161879 (1992-11-01), McDermott
patent: 5174648 (1992-12-01), Clary et al.
patent: 5345370 (1994-09-01), Murray et al.
patent: 5359779 (1994-11-01), Polk et al.
patent: 5590951 (1997-01-01), Matthews
patent: 5629105 (1997-05-01), Matthews
patent: 5642932 (1997-07-01), Matthews
patent: 5685637 (1997-11-01), Chapman et al.
patent: 5722755 (1998-03-01), Slape
patent: 5821697 (1998-10-01), Weber
patent: 5871272 (1999-02-01), Sharrah et al.
patent: 5984494 (1999-11-01), Chapman et al.
patent: 6019482 (2000-02-01), Everett
patent: 6046572 (2000-04-01), Matthews et al.
patent: 6095661 (2000-08-01), Lebens et al.
patent: 6183105 (2001-02-01), Parker
patent: 6296367 (2001-10-01), Parsons et al.
patent: 6386730 (2002-05-01), Matthews
NiteRider Digital Explorer Instruction Manual, Mar. 3, 1998.
Microchip Technology Inc., Data Sheet PIC12C67X, 1999.
International Recitifier, Data Sheet IRL3803S/L, Aug. 25, 1997.
National Semiconductor, Data Sheet LP2950/LP2951, Jul. 2000.
William Hunt, “Pulse Width Modulated Voltage Regulator for Electric Caving Lamps”, Apr. 12, 1995.
William Hunt, “Willie Hunt's Lightbulb Voltage Regulators”, prior to Dec. 1. 2001.

Affiliated with

Also associated with

Rating

Brightness controllable flashlights does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3399047