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US3787808A Expired / Lapsed US ⏱️ 0.0 years remaining

Automobile signalling system

Assignee: Individual
•
Filing: 1972-03-02
•
Granted: 1974-01-22
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Expires: 1992-03-02
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Abstract

Abstract A signalling system for automobiles to visually warn following motorists of deceleration stages. A series of panels mounted on the rear of the automobile are illuminated by a control circuit in a predetermined program responsive to both throttling and braking operations. The control circuit is effective to actuate the panels throughout vehicle deceleration in a manner which generates signals proportioned in size, color, and intensity to the rate of change of deceleration. In one form, the circuit senses daylight intensity conditions to increase panel illumination for added signal contrast and effectiveness. In another form, the control circuit illuminates an additional information containing panel for a given time length following a deceleration stage.

Inventors

  • 👤 K Knopf

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 19:05
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/44; B60Q1/444

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 375 words
In combination with a motor vehicle having braking means controlled by operator actuation of a brake member and which when released moves to a position in which no braking is applied and also having motor speed control means including a throttle member movable to vary the speed of the vehicle and which when released by the operator moves to a released position, deceleration of the vehicle normally involving release of the throttle member followed by initial movement of the brake member from its released position and then braking of the vehicle by application of force to the brake member after such initial movement; a visual signalling system comprising a plurality of light transmitting panels mounted on the rear of the motor vehicle forming first, second and third display areas, first, second and third lamp means adapted to separately illuminate the corresponding panels, said panels being disposed side by side in sequence and being characterized whereby they are visually distinguishable when illuminated, electrical circuitry means including a source of current and first, second and third circuits connected respectively to the first, second and third lamp means fOr energizing the same, first switch means actuated by release of the throttle member and serially included in said first circuit, second switch means actuated by initial movement of the brake member and included in series with the second circuit, third switch means actuated when force is applied to the brake member to effect braking of the vehicle and connected in series with the third circuit, actuation of said first switch means by release of the throttle member serving to close the first circuit to energize the first lamp means to illuminate the first panel, actuation of the second switch means by initial movement of the brake member from its released position serving to close the second circuit to energize the second lamp means to illuminate the second panel, and application of force to the brake member by the operator serving to actuate the third switch means to close the third circuit to energize the third illuminating means, and relay means in the circuitry serving to open the first circuit when the second circuit is closed and for opening both first and second circuits when the third circuit is closed.
Claim 2
Dependent Claim 375 words
In combination with a motor vehicle having braking means controlled by operator actuation of a brake member and which when released moves to a position in which no braking is applied and also having motor speed control means including a throttle member movable to vary the speed of the vehicle and which when released by the operator moves to a released position, deceleration of the vehicle normally involving release of the throttle member followed by initial movement of the brake member from its released position and then braking of the vehicle by application of force to the brake member after such initial movement; a visual signalling system comprising a plurality of light transmitting panels mounted on the rear of the motor vehicle forming first, second and third display areas, first, second and third lamp means adapted to separately illuminate the corresponding panels, said panels being disposed side by side in sequence and being characterized whereby they are visually distinguishable when illuminated, electrical circuitry means including a source of current and first, second and third circuits connected respectively to the first, second and third lamp means fOr energizing the same, first switch means actuated by release of the throttle member and serially included in said first circuit, second switch means actuated by initial movement of the brake member and included in series with the second circuit, third switch means actuated when force is applied to the brake member to effect braking of the vehicle and connected in series with the third circuit, actuation of said first switch means by release of the throttle member serving to close the first circuit to energize the first lamp means to illuminate the first panel, actuation of the second switch means by initial movement of the brake member from its released position serving to close the second circuit to energize the second lamp means to illuminate the second panel, and application of force to the brake member by the operator serving to actuate the third switch means to close the third circuit to energize the third illuminating means, and relay means in the circuitry serving to open the first circuit when the second circuit is closed and for opening both first and second circuits when the third circuit is closed.
Claim 3
Dependent Claim 34 words
A signalling system as in claim 1 together with means for opening said first circuit to prevent energization of the first lamp means when the speed of the vehicle is below a predetermined value.
Claim 4
Dependent Claim 108 words
A signalling system as in claim 1 in which the light transmitting panels include a panel forming a fourth display area, fourth lamp means adapted to separately illuminate the fourth panel, the electrical circuitry including a fourth circuit connected to the fourth lamp means, fourth switch means adapted to be actuated when force is applied to the brake member in excess of that applied to actuate the third switch means, the fourth switch means being connected in series with the fourth circuit, actuation of the fourth switch means serving to energize the fourth lamp means to illuminate the fourth panel while the first and second circuits remain open.
Claim 5
Dependent Claim 134 words
A system as in claim 3 in which the light transmitting panels include a fifth panel forming a fifth display area together with fifth lamp means adapted to illuminate the same, the electrical circuitry including a fifth circuit connected with the fifth lamp means to energize the same, a fifth switch means actuated when force is applied to the brake member in excess of that required to actuate the fourth switch means, as in emergency braking, the fifth switch means being connected in series with the fifth circuit, actuation of the fifth switch means serving to energize the fifth lamp means and thereby illuminate the fifth panel, and relay means in the circuitry for maintaining the first, second, third and fourth circuits open while the fifth circuit remains closed to illuminate the fifth panel.

References Cited (Backward Citations)

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CA517275A Cited
US1663691A Cited
US1921833A Cited
US1952133A Cited
US2096069A Cited
AT155931B Cited
US2685048A Cited
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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) 1977-01-21 1977-07-23 1978-01-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-01-21 1981-07-23 1982-01-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-01-21 1985-07-23 1986-01-22 $7700.00 Window Closed / Lapsed

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