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US3792307A Expired / Lapsed US ⏱️ 0.0 years remaining

Bicycle safety lighting generator-battery system

Assignee: Individual
•
Filing: 1972-07-26
•
Granted: 1974-02-12
•
Expires: 1992-07-26
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Abstract

Abstract A generator-battery circuit connects to the head and tail lights and in the preferred embodiment of the invention, auxiliary safety lights. The generator is driven from the bicycle wheel to energize the lights when the bicycle is traveling above a given speed. The battery circuit connects in bucking voltage relationship with the generator circuit and includes a series connected diode such that the battery is effectively disconnected when the generator is energizing the lights. On the other hand, when the bicycle slows below the given speed or is motionless, the battery voltage exceeds the generator voltage and energizes the lights. The auxiliary safety lights are mounted on the front and rear portions of the bicycle and provide 360* illumination in azimuth when the bicycle is stationary or traveling at low speeds.

Inventors

  • 👤 D Baker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 06:18
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/1407; B; B62; B62J; B62J6/00; B62J6/01; B62J6/015

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 286 words
A bicycle safety lighting generator-battery system for a bicycle equipped with head and tail lights comprising, in combination: a. a battery mounted on a frame portion of the bicycle; b. a generator mounted on the bicycle adjacent to a wheel in a position to be driven by the wheel when the bicycle is in motion; and, c. circuit means including: full-wave rectifying means connected to said generator and having first and second output leads providing a d-c voltage which increases with increasing speed of the bicycle, said head and tail lights being connected across said output leads; a single diode in series with said battery to define a series circuit; d. an auxiliary circuit means connecting said series circuit across said output leads, the orientation of the diode being such that the battery voltage bucks the d-c generator voltage on the first output leads; e. auxiliary safety lights secured to front and rear portions of the bicycle and designed to emit light over 360* in azimuth, said auxiliary circuit means connecting said safety lights in parallel with each other and in series between said diode and first output lead, the electrical resistance of the headlight being substantially less than the electrical resistance of the auxiliary lights ; whereby when the bicycle is traveling above a given speed, the generated d-c voltage is greater than the battery voltage, said diode blocking the generated voltage from the battery, so that the battery is effectively automatically disconnected from the circuit, the generated voltage energizing the lighting means, whereby when said bicycle is traveling at a speed less than said given speed or is motionless, the battery voltage energizes said auxiliary lights through said diode and relatively low headlight resistance.
Claim 2
Dependent Claim 286 words
A bicycle safety lighting generator-battery system for a bicycle equipped with head and tail lights comprising, in combination: a. a battery mounted on a frame portion of the bicycle; b. a generator mounted on the bicycle adjacent to a wheel in a position to be driven by the wheel when the bicycle is in motion; and, c. circuit means including: full-wave rectifying means connected to said generator and having first and second output leads providing a d-c voltage which increases with increasing speed of the bicycle, said head and tail lights being connected across said output leads; a single diode in series with said battery to define a series circuit; d. an auxiliary circuit means connecting said series circuit across said output leads, the orientation of the diode being such that the battery voltage bucks the d-c generator voltage on the first output leads; e. auxiliary safety lights secured to front and rear portions of the bicycle and designed to emit light over 360* in azimuth, said auxiliary circuit means connecting said safety lights in parallel with each other and in series between said diode and first output lead, the electrical resistance of the headlight being substantially less than the electrical resistance of the auxiliary lights ; whereby when the bicycle is traveling above a given speed, the generated d-c voltage is greater than the battery voltage, said diode blocking the generated voltage from the battery, so that the battery is effectively automatically disconnected from the circuit, the generated voltage energizing the lighting means, whereby when said bicycle is traveling at a speed less than said given speed or is motionless, the battery voltage energizes said auxiliary lights through said diode and relatively low headlight resistance.
Claim 3
Dependent Claim 45 words
A system according to claim 1, in which said auxiliary circuit includes switch means for shunting said diode so that by closing said switch means, said battery is charged by said generator when said bicycle is traveling at a speed greater than said given speed.
Claim 4
Dependent Claim 30 words
A system according to claim 1, in which one of said auxiliary lights is of the flashing type so that the auxiliary lights flash alternately when energized by the battery.
Claim 5
Dependent Claim 29 words
A system according to claim 1, in which said auxiliary lights are of different colors from each other to thereby identify the front and rear portions of the bicycle.
Claim 6
Dependent Claim 23 words
A system according to claim 1, in which each of said auxiliary lights is designed to emit light upwardly as well as azimuthly.

References Cited (Backward Citations)

FR1015771A Cited
FR1300560A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-02-11 1977-08-13 1978-02-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-02-11 1981-08-13 1982-02-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-02-11 1985-08-13 1986-02-12 $7700.00 Window Closed / Lapsed

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