Visible perception of brightness in miniature bulbs for an...

Details Visible perception of brightness in miniature bulbs for an... Visible perception of brightness in miniature bulbs for an...

2007-12-21

2010-12-14

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices

Filament and separate incandescent body

C313S315000, C313S318010, C313S318120, C445S069000

Reexamination Certificate

active

07851981

ABSTRACT:
Ornamental light strings are commonly made of a plurality of miniature light bulbs connected together, often in series, to make a light string. This invention is directed to optimizing the perceived brightness while reducing heat in each bulb. This is a particular problem where resistor bypass circuits are used where a bypass resistor being connected in parallel with at least one of the respective light sources, each respective light source being low wattage and being capable operating on a one hundred percent duty cycle as desired. Improvements are accomplished by changes in placement of the filament, its windings and materials.

REFERENCES:
patent: 1024495 (1912-04-01), Booth
patent: 1510847 (1922-04-01), Holder
patent: 1865689 (1929-06-01), Brander
patent: 1868689 (1932-07-01), Brander
patent: 2072337 (1937-03-01), Kamm
patent: 2152228 (1937-05-01), Waters
patent: 2145911 (1939-02-01), Anderson et al.
patent: 2760120 (1955-10-01), Fisherman
patent: 3260888 (1966-07-01), Webb, Jr.
patent: 3345482 (1967-10-01), Lou
patent: 3461921 (1969-08-01), Ackerman
patent: 3868230 (1975-02-01), Krukonis
patent: 3912966 (1975-10-01), Harnden, Jr.
patent: 3942063 (1976-03-01), Winter et al.
patent: 4463278 (1984-07-01), Kosmatka et al.
patent: 4464600 (1984-08-01), Kosmatka et al.
patent: 4727449 (1988-02-01), Fleck
patent: 4985001 (1991-01-01), Nagai
patent: 5453664 (1995-09-01), Harris
patent: 5777868 (1998-07-01), Gibboney, Jr.
patent: 5886423 (1999-03-01), Gershen et al.
patent: 6084357 (2000-07-01), Janning
patent: 6283797 (2001-09-01), Wu
patent: 6323597 (2001-11-01), Janning
patent: 6344716 (2002-02-01), Gibboney, Jr.
patent: 6555948 (2003-04-01), Noll
patent: 6580182 (2003-06-01), Janning
patent: 6597125 (2003-07-01), Janning
patent: 6690103 (2004-02-01), Uke
patent: 6765313 (2004-07-01), Janning
patent: 6929383 (2005-08-01), Janning
patent: 7042116 (2006-05-01), Janning
patent: 7166968 (2007-01-01), Janning
patent: 7178961 (2007-02-01), Janning
patent: 7261458 (2007-08-01), Janning
patent: 7342327 (2008-03-01), Janning
patent: 2003/0117021 (2003-06-01), Janning
patent: 2005/0174065 (2005-08-01), Janning
patent: 2005/0205971 (2005-09-01), Janning
patent: 1095673 (1967-12-01), None

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