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US4100462A
Expired / Lapsed
US
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Combination incandescent/fluorescent lighting system
Assignee: Individual
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Filing: 1977-05-11
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Granted: 1978-07-11
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Expires: 1997-05-11
Abstract
Abstract A combination incandescent/fluorescent lighting system is shown that gives an efficient, high quality light. An incandescent lamp in series with the fluorescent lamp is used as a ballast. An auxiliary starting circuit is used to create a high voltage for starting circuit flow through the fluorescent lamp. After current flow through the fluorescent lamp has started, the auxiliary circuit has essentially no effect on the remaining operation of the lighting system. A reversing switch for the fluorescent lamp is operable with an ON/OFF switch for reversing current flow through the fluorescent lamp each time the lighting system is cycled through ON/OFF. This prevents the light inside of the fluorescent lamp from migrating to one end thereof. The circuit is designed for efficient operation from an auxiliary source of power, such as the wind or sun, either singularly or in combination with a standard AC power source.
Inventors
- 👤 Norvel Jeff McLellan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:01
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/16; H05B41/18; H05B35/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
125 words
A combination incandescent/fluorescent lighting system for providing an efficient, high quality light, said lighting system comprising: a source of direct current; incandescent lamp means connected to said source of direct current; fluorescent lamp means connected in series with said incandescent lamp means and said source of direct current, said incandescent lamp means being a ballast for said fluorescent lamp means; bypass means in series with said fluorescent lamp means; auxiliary circuit means in parallel with said bypass means to start current flow through said fluorescent lamp means, said bypass means thereafter maintaining current flow through said incandescent lamp means and fluorescent lamp means; reversing means for changing the direction of current flow through said fluorescent lamp means during periods when no current is flowing therethrough.
Claim 2
Dependent Claim
125 words
A combination incandescent/fluorescent lighting system for providing an efficient, high quality light, said lighting system comprising: a source of direct current; incandescent lamp means connected to said source of direct current; fluorescent lamp means connected in series with said incandescent lamp means and said source of direct current, said incandescent lamp means being a ballast for said fluorescent lamp means; bypass means in series with said fluorescent lamp means; auxiliary circuit means in parallel with said bypass means to start current flow through said fluorescent lamp means, said bypass means thereafter maintaining current flow through said incandescent lamp means and fluorescent lamp means; reversing means for changing the direction of current flow through said fluorescent lamp means during periods when no current is flowing therethrough.
Claim 3
Dependent Claim
38 words
The combination incandescent/fluorescent lighting system as given in claim 1 includes an ON/OFF switch means for applying power to said incandescent lamp means and said fluorescent lamp means, said reversing means being operable by said ON/OFF switch means.
Claim 4
Dependent Claim
91 words
The combination incandescent/fluorescent lighting system as given in claim 2 wherein said auxiliary circuit means includes a multiple pole, double-throw switch means forming said ON/OFF switch means, a plurality of capacitors being connected in parallel across said source of direct current via said multiple pole, double-throw switch means when no current is flowing through said incandescent lamp means and fluorescent lamp means, upon switching said multiple pole, double-throw switch means said plurality of capacitors being connected in series across said bypass means to start current flow through said fluorescent lamp means.
Claim 5
Dependent Claim
35 words
The combination incandescent/fluorescent lighting system as given in claim 3 including antenna means contiguous with said fluorescent lamp means and extending into atmosphere for radiation pickup to aid current flow through said fluorescent lamp means.
Claim 6
Dependent Claim
64 words
The combination incandescent/fluorescent lighting system as given in claim 2 wherein said auxiliary circuit includes stepped-up transformer means in parallel with said bypass means for increasing initial voltage to said fluorescent lamp means, first capacitor means in series with said stepped-up transformer means eliminating said stepped-up transformer means from parallel connection across said bypass means after initial current flow through said fluorescent lamp means.
Claim 7
Dependent Claim
40 words
The combination incandescent/fluorescent lighting system as given in claim 5 wherein said first capacitor means is in series with a primary winding of said stepped-up transformer, a secondary winding of said stepped-up transformer being in parallel with said bypass means.
Claim 8
Dependent Claim
24 words
The combination incandescent/fluorescent lighting system as given in claim 2 wherein said source of direct current is obtained from a rectified, filtered alternating current.
Claim 9
Dependent Claim
45 words
The combination incandescent/fluorescent lighting system as given in claim 7 wherein said auxiliary circuit means includes a voltage multiplier circuit operable from a half waveform of said alternating current, said multiplier circuit applying a multiplied reverse voltage across said bypass means upon initial current flow.
Claim 10
Dependent Claim
29 words
The combination incandescent/fluorescent lighting system as given in claim 8 wherein said multiplier circuit is a plurality of second capacitor means and diode means connected to said alternating current.
Claim 11
Dependent Claim
30 words
The combination incandescent/fluorescent lighting system as given in claim 1 includes a solenoid means operable by initial current flow from said source of direct current to operate said reversing means.
Claim 12
Dependent Claim
50 words
The combination incandescent/fluorescent lighting system as given in claim 10 includes stepped-up transformer means connected in parallel with said bypass means, a primary winding of said stepped-up transformer means being operable by a gate means upon a predetermined charge of third capacitor means located across said primary winding being exceeded.
Claim 13
Dependent Claim
72 words
The combination incandescent/fluorescent lighting system as given in claim 11 including neon arc lamp means connected across said third capacitor means to said gate means, upon firing of said neon arc lamp means at said predetermined charge of said third capacitor means, said gate means conducting thereby causing current flow through said primary winding, current flow through said primary winding causing current flow through said secondary winding and said fluorescent lamp means.
References Cited (Backward Citations)
US901294A
Cited
US2714689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |