GB2327307A - Series connected light string with filament shunting - Google Patents
Series connected light string with filament shuntingInfo
- Publication number
- GB2327307A GB2327307A GB9823170A GB9823170A GB2327307A GB 2327307 A GB2327307 A GB 2327307A GB 9823170 A GB9823170 A GB 9823170A GB 9823170 A GB9823170 A GB 9823170A GB 2327307 A GB2327307 A GB 2327307A
- Authority
- GB
- United Kingdom
- Prior art keywords
- series connected
- light string
- connected light
- shunting
- filament
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/10—Circuits providing for substitution of the light source in case of its failure
- H05B39/105—Circuits providing for substitution of the light source in case of its failure with a spare lamp in the circuit, and a possibility of shunting a failed lamp
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
- H05B47/23—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in series
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A string of series connected incandescent bulbs (12-21) in which substantially all of the bulb filaments in the set are individually provided with a shunt element (31) which is inoperative during the normal operation of the set and is operative to provide the shunt only when an increase in the voltage across the shunt element exceeded a predetermined value.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65397996A | 1996-05-28 | 1996-05-28 | |
PCT/US1997/001831 WO1997046055A1 (en) | 1996-05-28 | 1997-02-03 | Series connected light string with filament shunting |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9823170D0 GB9823170D0 (en) | 1998-12-16 |
GB2327307A true GB2327307A (en) | 1999-01-20 |
GB2327307B GB2327307B (en) | 2000-02-16 |
Family
ID=24623040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9823170A Expired - Fee Related GB2327307B (en) | 1996-05-28 | 1997-02-03 | Series connected light string with filament shunting |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPH11509974A (en) |
CN (1) | CN1220076A (en) |
CA (1) | CA2255641C (en) |
DE (2) | DE19781744T1 (en) |
GB (1) | GB2327307B (en) |
HK (1) | HK1017226A1 (en) |
WO (1) | WO1997046055A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7178961B2 (en) | 1995-06-26 | 2007-02-20 | Jlj, Inc. | Voltage regulated light string |
US6084357A (en) * | 1998-04-10 | 2000-07-04 | Janning; John L. | Series connected light string with filament shunting |
DE19843330C2 (en) * | 1998-09-22 | 2003-10-16 | Diehl Stiftung & Co | Cabin lighting |
WO2002093711A1 (en) | 2001-05-17 | 2002-11-21 | Stay Lit International, Inc. | Voltage regulated light string |
US7564666B2 (en) * | 2006-05-02 | 2009-07-21 | Semiconductor Components Industries, L.L.C. | Shunt protection circuit and method therefor |
US7976191B2 (en) * | 2006-10-02 | 2011-07-12 | Best Point Group, Ltd. | Light string of LEDs |
US8247999B2 (en) * | 2008-01-22 | 2012-08-21 | Alcatel Lucent | Time division multiplexing a DC-to-DC voltage converter |
GB2509099A (en) * | 2012-12-20 | 2014-06-25 | Accuric Ltd | LED driver circuit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH427021A (en) * | 1964-07-03 | 1966-12-31 | Danfoss As | Device for compensating for the failure of a series resistor when connected in series, in particular when lighting a Christmas tree |
US3912966A (en) * | 1973-04-30 | 1975-10-14 | Gen Electric | Incandescent lamp series string having protection against voltage surges |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1024495A (en) * | 1910-10-26 | 1912-04-30 | Edgar Booth | Electric-lighting system. |
US2072337A (en) * | 1936-05-05 | 1937-03-02 | Nofade Electric Corp | Safety lighting circuit |
FR884370A (en) * | 1942-03-17 | 1943-08-11 | Improvements in the supply of electrical devices | |
US2760120A (en) * | 1955-10-26 | 1956-08-21 | New York Merchandise Co Inc | Lighting system for christmas trees |
US3639805A (en) * | 1970-05-25 | 1972-02-01 | Gen Motors Corp | Series lamp safeguard circuit |
US4450382A (en) * | 1982-06-21 | 1984-05-22 | The United States Of America As Represented By The Secretary Of The Army | D.C. Lamp burn-out protection |
US4682079A (en) * | 1984-10-04 | 1987-07-21 | Hallmark Cards, Inc. | Light string ornament circuitry |
US4727449A (en) * | 1986-10-01 | 1988-02-23 | Chiu Technical Corporation | Filament bypass circuit |
US5006724A (en) * | 1989-03-20 | 1991-04-09 | Liu Ching Chung | Control device for light sets |
FR2663183B1 (en) * | 1990-06-07 | 1997-04-11 | Fd Eclairage Architectural | LOW VOLTAGE LAMP SUPPLY CIRCUIT ARRANGED IN SERIES. |
EP0576536B1 (en) * | 1991-02-27 | 2001-12-12 | Roche Diagnostics Corporation | Method of communicating with microcomputer controlled instruments |
US5539317A (en) * | 1994-11-07 | 1996-07-23 | Jlj, Inc. | Circuit tester for Christmas tree light sets |
-
1997
- 1997-02-03 DE DE19781744T patent/DE19781744T1/en active Pending
- 1997-02-03 JP JP9542312A patent/JPH11509974A/en active Pending
- 1997-02-03 CA CA002255641A patent/CA2255641C/en not_active Expired - Fee Related
- 1997-02-03 WO PCT/US1997/001831 patent/WO1997046055A1/en active Application Filing
- 1997-02-03 CN CN97195011A patent/CN1220076A/en active Pending
- 1997-02-03 DE DE19781744A patent/DE19781744B4/en not_active Expired - Fee Related
- 1997-02-03 GB GB9823170A patent/GB2327307B/en not_active Expired - Fee Related
-
1999
- 1999-05-12 HK HK99102133A patent/HK1017226A1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH427021A (en) * | 1964-07-03 | 1966-12-31 | Danfoss As | Device for compensating for the failure of a series resistor when connected in series, in particular when lighting a Christmas tree |
US3912966A (en) * | 1973-04-30 | 1975-10-14 | Gen Electric | Incandescent lamp series string having protection against voltage surges |
Also Published As
Publication number | Publication date |
---|---|
DE19781744T1 (en) | 1999-05-12 |
GB2327307B (en) | 2000-02-16 |
CN1220076A (en) | 1999-06-16 |
GB9823170D0 (en) | 1998-12-16 |
HK1017226A1 (en) | 1999-11-12 |
JPH11509974A (en) | 1999-08-31 |
CA2255641C (en) | 2002-06-25 |
DE19781744B4 (en) | 2006-03-02 |
CA2255641A1 (en) | 1997-12-04 |
WO1997046055A1 (en) | 1997-12-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20080203 |