Patent US3693045A successfully refreshed from Google Patents.
US3693045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illumination
Assignee: GUTH LIGHTING SYSTEMS INC "GLS" A CORP OF MISSOURI
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Filing: 1970-02-13
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Granted: 1972-09-19
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Expires: 1990-02-13
Abstract
Abstract Illumination system utilizing H.I.D. (high intensity discharge) lamps, and having a subordinate lamp automatically activated to establish immediate illumination when the H.I.D. lamp circuit is turned on, i.e., without awaiting the usual warm-up period, and to maintain illumination during periods of voltage dip (which normally extinguishes H.I.D. lamps) in the circuit supplying them, as well as during subsequent recovery and restarting the H.I.D. lamps after extinguishment as a result of voltage dip or other outage condition.
Inventors
- 👤 Lorenzo S Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:15
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/46; H05B41/16; H05B41/20; H05B41/23; H05B41/231
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
353 words
A lighting fixture and circuitry for an illuminating system comprising in combination: a reflector, a first receptacle for accommodating a high intensity discharge lamp having a light emitting surface disposed within said reflector, a second receptacle for accommodating a lamp of different type having a light emitting surface disposed within said reflector, said first receptacle and second receptacle being connected to a normal source of voltage supply and subordinate source of voltage supply respectively, a transformer having a primary winding connected to be energized by said normal source of supply, and a secondary winding connected to feed said high intensity discharge lamp, a capacitor intervening said secondary winding and said high intensity discharge lamp, a diode connected in parallel circuit relation with said high intensity discharge lamp, said diode being connected on the side of said capacitor remote from said secondary winding, and being normally disposed for conducting charge in a direction towards said capacitor, a first relay coil connected in parallel circuit relation with said high intensity discharge lamp, said coil being connected on the side of said capacitor remote from said secondary winding and being in series circuit relation with said diode, said diode designed for interrupting the flow of current to said relay coil when the voltage condition across said diode senses a voltage condition signifying extinguishment of said high intensity discharge lamp, said subordinate source of voltage supply being substantially independent of said normal source of voltage supply and connected to selectively energize said lamp of different type, normally closed relay contacts responsive to said relay coil controlling the flow of current between said subordinate source of supply and said lamp of different type, said relay contacts being normally closed to provide for conduct of charge from said subordinate source of voltage supply to saiD lamp of different type during initial ignition of said high intensity discharge lamp until it emits normal light, and said relay coil responsive to the voltage condition across said diode for opening said relay contacts when the voltage across said high intensity discharge lamp is within the range at which it emits normal light.
Claim 2
Dependent Claim
353 words
A lighting fixture and circuitry for an illuminating system comprising in combination: a reflector, a first receptacle for accommodating a high intensity discharge lamp having a light emitting surface disposed within said reflector, a second receptacle for accommodating a lamp of different type having a light emitting surface disposed within said reflector, said first receptacle and second receptacle being connected to a normal source of voltage supply and subordinate source of voltage supply respectively, a transformer having a primary winding connected to be energized by said normal source of supply, and a secondary winding connected to feed said high intensity discharge lamp, a capacitor intervening said secondary winding and said high intensity discharge lamp, a diode connected in parallel circuit relation with said high intensity discharge lamp, said diode being connected on the side of said capacitor remote from said secondary winding, and being normally disposed for conducting charge in a direction towards said capacitor, a first relay coil connected in parallel circuit relation with said high intensity discharge lamp, said coil being connected on the side of said capacitor remote from said secondary winding and being in series circuit relation with said diode, said diode designed for interrupting the flow of current to said relay coil when the voltage condition across said diode senses a voltage condition signifying extinguishment of said high intensity discharge lamp, said subordinate source of voltage supply being substantially independent of said normal source of voltage supply and connected to selectively energize said lamp of different type, normally closed relay contacts responsive to said relay coil controlling the flow of current between said subordinate source of supply and said lamp of different type, said relay contacts being normally closed to provide for conduct of charge from said subordinate source of voltage supply to saiD lamp of different type during initial ignition of said high intensity discharge lamp until it emits normal light, and said relay coil responsive to the voltage condition across said diode for opening said relay contacts when the voltage across said high intensity discharge lamp is within the range at which it emits normal light.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |