Flashlight with adjustable focus lamp element

Details Flashlight with adjustable focus lamp element Flashlight with adjustable focus lamp element

2010-04-12

2011-10-11

Husar, Stephen F (Department: 2875)

Illumination

Self powered lamp

With movable focusing element

C362S184000, C362S205000, C362S249020, C362S277000, C362S319000

Reexamination Certificate

active

08033680

ABSTRACT:
A flashlight with a rotatable lamp head is provided. The lamp head pivots about two cylindrical coaxial electrical connectors. The lamp head includes a reflector having a concave curved reflective surface and two lamp elements therein. A focusing ring on the lamp head moves the reflector in the lamp head for adjusting the focus of the light produced by the flashlight. The flashlight also includes a series of fluid-tight seals to insure that the flashlight is waterproof and a one-way flapper valve allows release of gases produced by the batteries and prevents fluid from entering the flashlight. A battery charger is also provided to recharge a battery pack for the flashlight.

REFERENCES:
patent: 1119663 (1914-12-01), Swallow
patent: 1214583 (1917-02-01), Persons
patent: 1448352 (1923-03-01), Barany et al.
patent: 1559930 (1925-11-01), Bean
patent: 1889936 (1932-12-01), Shannon
patent: 2701332 (1955-02-01), Andre
patent: 3809882 (1974-05-01), Wetmore
patent: 3999110 (1976-12-01), Ramstrom et al.
patent: 4092580 (1978-05-01), Prinsze
patent: 4129899 (1978-12-01), Dunbar
patent: 4249234 (1981-02-01), Park et al.
patent: 4290095 (1981-09-01), Schmidt
patent: 4423473 (1983-12-01), Kirkley
patent: 4459646 (1984-07-01), Drane
patent: 4463283 (1984-07-01), Penney et al.
patent: 4541555 (1985-09-01), Miree
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: 4821156 (1989-04-01), Siefert et al.
patent: 4823242 (1989-04-01), Maglica et al.
patent: 4843298 (1989-06-01), Brauch et al.
patent: 4963798 (1990-10-01), McDermott
patent: 4974130 (1990-11-01), Friedman
patent: 4998187 (1991-03-01), Herrick
patent: 5081568 (1992-01-01), Dong et al.
patent: 5142458 (1992-08-01), Brunson
patent: 5161879 (1992-11-01), McDermott
patent: 5225760 (1993-07-01), Leiserson
patent: 5359779 (1994-11-01), Polk et al.
patent: 5410461 (1995-04-01), Petzl
patent: 5432689 (1995-07-01), Sharrah et al.
patent: 5486432 (1996-01-01), Sharrah et al.
patent: 5541822 (1996-07-01), Bamber
patent: 5558429 (1996-09-01), Cain
patent: 5580156 (1996-12-01), Suzuki et al.
patent: 5629105 (1997-05-01), Matthews
patent: 5707137 (1998-01-01), Hon
patent: 5746495 (1998-05-01), Klamm
patent: 5871272 (1999-02-01), Sharrah et al.
patent: 5884992 (1999-03-01), Taylor et al.
patent: 5903132 (1999-05-01), Ohira et al.
patent: 6002236 (1999-12-01), Trant et al.
patent: 6012824 (2000-01-01), Sharrah et al.
patent: 6018227 (2000-01-01), Kumar et al.
patent: 6054839 (2000-04-01), Guimier et al.
patent: 6236187 (2001-05-01), Chen
patent: 6250771 (2001-06-01), Sharrah et al.
patent: 6316911 (2001-11-01), Moskowitz et al.
patent: 6523972 (2003-02-01), Sharrah et al.
patent: 6659621 (2003-12-01), Sharrah et al.
patent: 6817730 (2004-11-01), Sharrah et al.
patent: 7220013 (2007-05-01), Sharrah et al.
patent: 7314286 (2008-01-01), Sharrah et al.
patent: 7699491 (2010-04-01), Sharrah et al.
patent: 2002/0097576 (2002-07-01), Sharrah et al.
patent: 2005/0068766 (2005-03-01), Sharrah et al.
patent: 2007/0159809 (2007-07-01), Kim
patent: 2007/0159810 (2007-07-01), Kim

Affiliated with

Also associated with

Rating

Flashlight with adjustable focus lamp element 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 adjustable focus lamp element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flashlight with adjustable focus lamp element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4253764