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Class 315/77 - Vehicle


Subclass of Class 315 - Electric lamp and discharge devices: systems
Definition: Systems limited to use with a vehicle.
No. of patents: 378
Last issue date: 05/01/2012


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NumberTitleIssue Date
4890037Apparatus for controlling a vehicle headlamp
The present invention utilizes a dimmer switch for alternating the lighting direction of a vehicle headlamp, but does so utilizing control apparatus that ensures that only low beam-directed light is emitted by the headlamp when the headlamp is turned ON. ...
12/26/1989
4876526Heavy duty flasher
An op-amp flasher for trucks, busses, ambulances and other equipment requiring flashing high power light sources. The flashing is made more noticeable and lamp life increased by increasing the spacing between the flashes so that the flashes are on less th...
10/24/1989
4871945Automatic brake light flashing electric module and circuit
This device is an electronic module activated by a vehicle's existing brake light switch which, when electrically connected to a motor vehicle's brake light circuit, will flash the brake lights several times before continuous illumination. In the preferre...
10/03/1989
4868458Xenon lamp particularly suited for automotive applications
Disclosed is a xenon lamp used for lighting applications and which is particularly suitable for automobile applications such as headlamps. The benefits of such usage, relative to incandescent lamps commonly employed for automotive forward lighting applica...
09/19/1989
4868459Method of and circuit for brightness and temperature-dependent control of an LCD illuminator
In order to provide brightness-dependent control of a lamp which is used for illuminating a LCD display, it is known to switch the lamp on and off in dependence on the measured brightness of the incident ambient light. To prevent overheating of the liquid...
09/19/1989
4866345Vehicle interior lamp shut-off device with particular dimming sequence
A vehicle room lamp shut-off device eliminates the annoyance to the driver by reducing the room lamp illumination level by a certain amount as the door is closed, then gradually reducing the illumination level further until the light is off....
09/12/1989
4862036Electrical circuit for controlling the operation of high intensity motorcycle lamps
An electrical circuit for controlling the power consumption of high intensity motorcycle lamps which reduces the voltage across the lamps during long periods of operation and enables the lamps to alternate operation between full and reduced intensity. A m...
08/29/1989
4857807Auxiliary light module for vehicles
An auxiliary light module for vehicles, giving "battery back-up" provisions, particularly useful for "semi" vehicles in which the pulling tractor electrically energizes the light systems of the pulled trailer by a connector strap or harness for interconne...
08/15/1989
4831310Automatic headlight control system
Apparatus for causing an external light system of a motor vehicle to be actuated when the vehicle engine is running, the vehicle having an electrical battery associated with the engine, and the running of the engine causing an AC signal to appear with a D...
05/16/1989
4786843Vehicle illumination control circuit
In order to permit the simultaneous variation of the illumination of a clock and the illumination of instruments included in an instrument panel of an automotive vehicle or the like, a single illumination control device is connected with the ignition swit...
11/22/1988
4751431Adapter unit for trailer light system
An adapter unit for interfacing the existing brake and turn signal light system of a vehicle with the light system of a trailer. The adapter unit includes a first relay having a single coil and a pair of contacts relatively movable to a closed circuit con...
06/14/1988
4727290Automatic vehicle headlamp dimming control
An automatic vehicle headlamp dimming control is the type having an operator controlled first voltage divider across a power supply, a light sensitive resistance connected in electrical series with an electrically controlled variable resistance in a secon...
02/23/1988
4723095Daytime running lights using turn signal lamps
A system of daylight running lights utilizing the front turn signal lights of a vehicle incorporates a solenoid coil and a double pole single throw switch, such that when the coil is activated, both poles are closed. A connection from the ignition circuit...
02/02/1988
4713583Headlamp cleaning system
A vehicle headlamp cleaning assembly and method for use in a vehicle includes cleaning means (27) which are energized when the headlamps (10) collect residue. The headlamp (10) includes a transparent lens (12), a light source (14) and a housing (16) with ...
12/15/1987
4712044Circuit for sequentially turning on lamps on an automobile
An array of indicator lamps is mounted on the rear of an automobile for signaling turns. When a turn is signaled, the lamps turn on in sequence, thereby creating the impression of motion in the desired direction. Each lamp is coupled to a battery via an a...
12/08/1987
4692668Strobe adaptor for automotive timing light
A compact adaptor for conversion of a conventional hand-held automotive timing light into a stroboscope for industrial troubleshooting comprises a D.C. power source, preferably a twelve volt rechargeable battery, and an integrated circuit oscillator, both...
09/08/1987
4686423Automotive headlight control
An automotive headlight control including means to detect when the automobile engine is operating and cause the headlights to be operated at reduced output. This ensures that when the vehicle is driven, the headlights automatically turn on and reduce the ...
08/11/1987
4667129Method and device for automatically switching on and off the headlights of a motor vehicle
In a motor vehicle comprising headlights, an ignition switch, and an electric energy storage battery, there is provided a device for automatically turning on and off the headlights. A first and a second comparators responsive to two different reference vo...
05/19/1987
4645974Discharge tube lighting system for use in a vehicle
In a discharge tube lighting system for use in a vehicle, a heat generating element, which is made of metal material, is formed on an outer surface of a tube element of the discharge tube along the longitudinal direction of the tube element, and a tempera...
02/24/1987
4622494Signalling device
An auxiliary signalling and warning device for utilization on vehicles which make wide turns comprising a main body section that is at least partially reflectorized and a light lens member that is adapted to be secured to the main body section so as to fo...
11/11/1986
4620177Winker device
A winker device comprising a left winker having a left winker lamp for a turning to the left and a left position lamp, a right winker having a right winker lamp for a turning to the right and a right position lamp, a winker switch means adapted for a swit...
10/28/1986
4572987Lamp monitoring circuit
In order to provide a lamp failure warning in both illuminated and unilluminated states of the lamp, there is provided a resistance bridge circuit Rs, L, R2 and R3 which is substantially in balance if the lamp L is sound. An amplifier IC1 acts as a detect...
02/25/1986
4558260Head lamps control system for use on vehicles
A head lamps control system for use on a vehicle for turning on and off the head lamps of the vehicle according to the brightness of the outside of the vehicle, in which a flip flop circuit is set upon closing of an ignition switch and in this set conditi...
12/10/1985
4533860Apparatus for adjusting the inclination of automobile headlamp
An automobile headlamp inclination controller comprises a reduction gear group coupled between a headlamp and a d.c. motor. The d.c. motor has two windings, one for rotating a rotor in one direction and the other for rotating the rotor in an opposite dire...
08/06/1985
4464604Tractor work lighting with automatic deluminizing control
Tractor with speed-responsive circuit-interrupting switch for automatically dousing, at night, flood work lamps provided in a lighting circuit on the tractor. Switching is controlled according to a microcomputer chip program by which frequency of a ground...
08/07/1984
4461975Concealed type head lamp device
A concealed type head lamp device in which head lamps are provided on a motor vehicle body and are capable of performing exposed, concealed, turning on and off and passing operations by a plurality of switches driven by means of a single operating lever. ...
07/24/1984
4450382D.C. Lamp burn-out protection
A D.C. lamp system having a number of small zener diodes arranged in eleccal parallelism with various lamp current supply wires. The zener diodes are sized so that the collective wattage ratings of the zeners is equal to the arithmetical product of the D...
05/22/1984
4403172Vehicle interior light control system
A motor vehicle interior light control system wherein actuation of outside door handle does not cause the interior light to illuminate, but the interior light is illuminated for a predetermined period such as 10-50 seconds only after full return of the do...
09/06/1983
4388558Display intensity control apparatus
A display intensity control apparatus for controlling under dark ambient conditions the display intensity of an automobile display system comprises a plurality of display units (e.g., LED, FLT, Lamp) for providing displays effected by display elements of ...
06/14/1983
4385258Delay circuit for interior illumination means of a motor vehicle
A delay circuit for the interior light of a motor vehicle and adapted to be actuated by a vehicle door contacts connected in series with the interior light is disclosed. The circuit has an R.C. network for determining a time delay between opening the door...
05/24/1983
4380718Trailer marker light substitution circuit
An improved dual polarity substitution circuit for energizing a secondary load, such as an incandescent lamp, upon failure of a primary load. Dual polarity is achieved through the use of parallel PNP and NPN transistors, one of which conducts so long as t...
04/19/1983
4368406Lamp dimmer control with integral ambient sensor
A lamp dimmer control utilizing a variable resistor and an associated adjustment mechanism having an ambient light sensor mounted integral to the control so as to receive ambient light external to the control housing via a translucent adjustment mechanism...
01/11/1983
4358713Brightness control device for light emitting display of electronic meter
A brightness control device for a light emitting display of an automotive vehicle electronic meter wherein the brightness of the light emitting display is controlled in response to the variable duty factor output pulse signal produced by an illumination c...
11/09/1982
4358714Light dimming system for grounded-side control of discrete indicator lamps
A light dimming system for simultaneously controlling the brightness of a plurality of two-terminal indicating lights, each having one terminal connected to receive a constant voltage relative to ground. The system includes a single dimmer control for pro...
11/09/1982
4357558Automatic control device for lighting and extinction of headlamps in a vehicle
An automatic control device for the lighting and extinction of headlamps of car, comprising at least two photo-sensitive elements connected to control circuits defining luminosity thresholds to produce control signals depending on ambient luminosity, and ...
11/02/1982
4355271Control apparatus
Control apparatus for controlling windscreen wiper apparatus of a vehicle. An infra-red radiating device directs infra-red radiation from the interior of the vehicle through the windscreen to be reflected from the outer surface of the windscreen back into...
10/19/1982
4348613Lamp failure indicating circuit
A lamp failure indicating circuit particularly useful for automotive vehicle application such as detecting failure of headlamps, stop lamps and/or turn signal lamps. The disclosed circuit embodiments monitor branch circuits each containing a lamp load and...
09/07/1982
4325007Hazard warning circuit
A turn-signal flasher circuit for automotive vehicles wherein a turn-signal switch controls one of two turn-signal lamp circuits, and in which a hazard warning switch controls both lamp circuits simultaneously. A pulse generator controls the frequency of ...
04/13/1982
4324986Switch position indicating means for automobiles
An automobile electric system including an electrically operated device such as an air conditioning device which is controlled by a control switch and light devices such as head lights which are controlled by a light switch. The control switch is provided...
04/13/1982
4325052Trailer light connection system
Trailer taillights are electrically controlled in response to the operation of a tow vehicle's taillights. Light emitted by the towing vehicle taillights is detected by electronic light sensors. The sensors are connected to circuits equipped with tailligh...
04/13/1982
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