US4186428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for adjusting the inclination of automobile headlights
Assignee: Cibie Projecteurs
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Filing: 1978-03-02
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Granted: 1980-01-29
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Expires: 1998-03-02
Abstract
Abstract The invention relates to a device for the joint control of the inclination of the headlights of an automobile, of the type comprising an electric motor-reduction gear mechanically coupled to each headlight to adjust the inclination thereof, each motor-reduction gear being of the type comprising, in series in its electrical supply circuit, an electrical switch actuated generator that the motor-reduction gear makes a predetermined rotation, and comprising a time base possessing at least one output and capable of supplying in controlled manner on said output a series of electrical pulses at intervals of time at least equal to the time necessary for the motor-reduction gears to make said predetermined rotation.
Inventors
- 👤 Alain Deverrewaere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:54
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/02; B60Q1/04; B60Q1/06; B60Q1/076
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
In a device for the joint control of the inclination of the headlights of an automobile, including a pair of motor reduction gears mechanically coupled to a pair of headlights, respectively, an electrical circuit including an electrical supply and main switch, the improvement comprising; a fixed stop switch on each motor reduction gear, said fixed stop switch turning off only when a shaft of the motor reduction gear is positioned according to a predetermined angular sector; a generator adapted to supply electrical pulses sufficient to start rotation of the motor reduction gears, from their stop position until the closure of the fixed stop switches, the output of the generator being electrically connected between the fixed stop switches and their corresponding motor reduction gears; the generator being connected to the electrical supply by the main switch.
Claim 2
Dependent Claim
135 words
In a device for the joint control of the inclination of the headlights of an automobile, including a pair of motor reduction gears mechanically coupled to a pair of headlights, respectively, an electrical circuit including an electrical supply and main switch, the improvement comprising; a fixed stop switch on each motor reduction gear, said fixed stop switch turning off only when a shaft of the motor reduction gear is positioned according to a predetermined angular sector; a generator adapted to supply electrical pulses sufficient to start rotation of the motor reduction gears, from their stop position until the closure of the fixed stop switches, the output of the generator being electrically connected between the fixed stop switches and their corresponding motor reduction gears; the generator being connected to the electrical supply by the main switch.
Claim 3
Dependent Claim
95 words
In the device of claim 1, wherein said electrical supply circuit of the motor reduction gears further comprises a polarity switch; and wherein said generator has two outputs of opposite polarities connected to said polarity switch so that only one of its outputs is effective according to the state of said polarity switch; with each output being electrically connected to each of said motor reduction gears through a pair of diodes; said diodes corresponding to an output being in the same direction but opposite to the direction of the diodes corresponding to the other output.
Claim 4
Dependent Claim
13 words
In the device of claim 2, said generator delivering a square wave signal.
References Cited (Backward Citations)
US3229082A
Cited
US4013883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-28 | 1983-07-30 | 1984-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-28 | 1987-07-30 | 1988-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-28 | 1991-07-30 | 1992-01-29 | $7700.00 | Window Closed / Lapsed |