Patent US4501475A successfully refreshed from Google Patents.
US5162702A
Expired / Lapsed
US
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Flashing light warning apparatus
Assignee: Hella GmbH and Co KGaA
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Filing: 1991-05-08
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Granted: 1992-11-10
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Expires: 2011-05-08
Abstract
Abstract In flashing light warning apparatus of a type having a voltage source (U), a main blocking transformer (HW), a flash tube (R), an ignition device (Z), a first and a third storage condenser (K1, K3), and an electrical switching device (S1), a switching path of the first electrical switching apparatus is arranged parallel to the first storage condenser, the third storage condenser and the ignition device are coupled to an auxiliary blocking transformer (ZW), and the first switching device can be switched by a control device (B). Such a flashing light warning apparatus can be produced in an uncomplicated, cost effective manner, to provide light energy which can be changed during operation to provide a day flash and at least one type of night flash. The night flash is at such a level that its output can be recognized from afar only by night vision apparatus.
Inventors
- 👤 Siegfried Schmees
- 👤 Werner Lepper
- 👤 Wolfgang Grimm
- 👤 Heiko Janssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:37
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/30
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
104 words
In a flashing light warning apparatus of a type including a voltage source, a main transformer, a flash tube, an ignition device, a plurality of storage condensers and an electrical switching apparatus; the improvement wherein a switching path of a first switching device of the switching apparatus is arranged to be parallel to a first storage condenser, another storage condenser and the ignition device are coupled to an auxiliary transformer and the first switching device can be switched by a control device for discharging said first storage condenser thereby making possible the ignition and discharge of the flash tube with a smaller flash energy.
Claim 2
Dependent Claim
104 words
In a flashing light warning apparatus of a type including a voltage source, a main transformer, a flash tube, an ignition device, a plurality of storage condensers and an electrical switching apparatus; the improvement wherein a switching path of a first switching device of the switching apparatus is arranged to be parallel to a first storage condenser, another storage condenser and the ignition device are coupled to an auxiliary transformer and the first switching device can be switched by a control device for discharging said first storage condenser thereby making possible the ignition and discharge of the flash tube with a smaller flash energy.
Claim 3
Dependent Claim
34 words
In a flashing light warning apparatus according to claim 1 wherein a coupling between the first storage condenser and an anode of the flash tube includes a diode arranged to conduct toward the anode.
Claim 4
Dependent Claim
56 words
In a flashing light warning apparatus according to claim 2 wherein is further included a second storage condenser and a second switching device whose switching path is parallel to the second storage condenser, wherein the second storage condenser is coupled to the auxiliary transformer, and wherein the second switching device is switched by the control device.
Claim 5
Dependent Claim
34 words
In a flashing light warning apparatus according to claim 3 wherein a coupling between the second storage condenser and the anode of the flash tube includes a second diode conducting toward the flash tube.
Claim 6
Dependent Claim
32 words
In a flashing light warning apparatus according to claim 4 wherein a resistor having a high resistance is arranged in a coupling between the second storage condenser and said another storage condenser.
Claim 7
Dependent Claim
41 words
In a flashing light warning apparatus according to claim 5 wherein a third diode is arranged in a coupling between the said another storage condenser and the anode of the flash tube to conduct in the direction of the flash tube.
Claim 8
Dependent Claim
26 words
In a flashing light warning apparatus according to claim 6 wherein the ignition device is arranged either in parallel or in series with the flash tube.
Claim 9
Dependent Claim
22 words
In a flashing light warning apparatus according to claim 7, wherein the ignition device includes or is coupled to a cyclical generator.
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) | 1995-11-10 | 1996-05-11 | 1996-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-10 | 2000-05-11 | 2000-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-10 | 2004-05-11 | 2004-11-10 | $7700.00 | Window Closed / Lapsed |