US3764799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashing warning light
Assignee: SWF Auto Electric GmbH
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Filing: 1972-05-30
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Granted: 1973-10-09
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Expires: 1992-05-30
Abstract
Abstract A flashing warning light for road traffic is formed of a fixed light bulb, a reflector rotatably driven about the bulb by a motor, and a colored radiating dome covering the light bulb and the reflector. The reflector and radiating dome are interconnected so that the dome rotates with the reflector. The dome is formed of two differently colored half domes. The reflector can be made to rotate in either direction by the motor and, due to the connection between the reflector and the dome, in each direction of rotation a different colored half of the dome is positioned in front of the reflector.
Inventors
- 👤 D Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:09
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2611
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
119 words
A flashing warning light for road traffic comprising a stationary light bulb, a motor having a drive shaft, a reflector operatively connected to said drive shaft so that it is rotatable about said light bulb, a colored radiating dome covering said light bulb and reflector, said motor being a revisible type motor for rotating said reflector in opposite directions about said light bulb, said radiating dome being formed of two differently colored half domes and being operatively connected to said drive shaft to rotate with said reflector, and means interconnecting said reflector and said dome for rotatably displacing said dome through 180* relative to said reflector in the direction of the rotation of said drive shaft of said motor.
Claim 2
Dependent Claim
119 words
A flashing warning light for road traffic comprising a stationary light bulb, a motor having a drive shaft, a reflector operatively connected to said drive shaft so that it is rotatable about said light bulb, a colored radiating dome covering said light bulb and reflector, said motor being a revisible type motor for rotating said reflector in opposite directions about said light bulb, said radiating dome being formed of two differently colored half domes and being operatively connected to said drive shaft to rotate with said reflector, and means interconnecting said reflector and said dome for rotatably displacing said dome through 180* relative to said reflector in the direction of the rotation of said drive shaft of said motor.
Claim 3
Dependent Claim
107 words
A flashing warning light, as set forth in claim 1, wherein a support plate is attached to said drive shaft, Said reflector is connected to said support plate and said radiating dome is journaled to rotate freely on said drive shaft, and said means interconnecting said reflector and said dome comprises a pin-and-slot guide arrangement with said pin being attached to one of said reflector and said dome and said slot guide being formed in the other one of said reflector and said dome so that said pin is movably displaceable in said slot guide for providing the relative movement between said reflector and said radiating dome.
Claim 4
Dependent Claim
59 words
A flashing warning light, as set forth in claim 1, wherein said dome includes a support plate, and said means interconnecting said reflector and said dome comprises a semi-circular guide slot in said support plate and a guide pin secured to said reflector and extending into said guide slot for movement along the semi-circular path of said guide slot.
Claim 5
Dependent Claim
58 words
A flashing warning light, as set forth in claim 2, wherein said drive shaft has an axis of rotation which extends through said stationary light bulb, said two half-domes forming said radiating dome meet in a plane containing said axis of rotation, and said reflector extends about said light bulb to a point on the axis of rotation.
Claim 6
Dependent Claim
23 words
A flashing warning light, as set forth in claim 4, wherein a translucent protective dome is fixed about and covers said radiating dome.
Claim 7
Dependent Claim
38 words
A flashing warning light, as set forth in claim 1, wherein said motor is a direct current motor and its drive shaft is variable in its direction of rotation by reversal of the direction of the armature therein.
Claim 8
Dependent Claim
36 words
A flashing warning light, as set forth in claim 1, wherein said motor is a direct current motor and its drive shaft is variable in its direction of rotation by reversal of the field current therein.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |