Patent US3800898A successfully refreshed from Google Patents.
US3800898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically powered bicycle
Assignee: Individual
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Filing: 1972-05-17
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Granted: 1974-04-02
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Expires: 1992-05-17
Abstract
Abstract An electrically powered bicycle having a frame support means with a front steerable wheel and a rear wheel, and wherein electric motor drive means is drivingly connected to the front steerable wheel. The electric motor is supplied with power from a pair of storage batteries, one supported adjacent each side of the axis of the rear wheel and includes selectively operable control means for transferring the power from the storage batteries to the electric motor for effecting rotary driving movement of the front steerable wheel.
Inventors
- 👤 D Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:11
CPC Classifications
B; B60; B60K; B60K1/00; B62; B62M; B62M6/00; B62M6/40; B62M6/60; B62M6/80; B62M6/90; B62M7/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
218 words
An electrically powered bicycle comprising in combination frame support means, a rear wheel supported by said means for rotation in a vertical plane, a substantially vertical sleeve rigidly connected at the front of said frame support means, a steerable member pivotally supported in said sleeve and having a handlebar support bracket above said sleeve and a wheel receiving fork below it, a front wheel supported on a horizontal axis at the lower end of said fork, a front wheel drive element mounted on said axis, an electric motor, bracket means secured to said fork immediately below said sleeve, connecting means pivotally supporting said motor on said bracket means at the lower portion of said motor, a first link pivotally connected to the upper portion of said motor, and a second link pivotally connected to the handlebar supporting bracket, said links being provided with longitudinal overlapping slots, connecting means received in said slots for holding said links in adjusted positions, a jack shaft rotatably carried by said fork and including a pair of axially spaced drive elements, first drive means for connecting said motor to one of said drive elements and second drive means for connecting the other drive element to said front wheel drive element, so that operation of said motor will effect rotation of said front wheel.
Claim 2
Dependent Claim
218 words
An electrically powered bicycle comprising in combination frame support means, a rear wheel supported by said means for rotation in a vertical plane, a substantially vertical sleeve rigidly connected at the front of said frame support means, a steerable member pivotally supported in said sleeve and having a handlebar support bracket above said sleeve and a wheel receiving fork below it, a front wheel supported on a horizontal axis at the lower end of said fork, a front wheel drive element mounted on said axis, an electric motor, bracket means secured to said fork immediately below said sleeve, connecting means pivotally supporting said motor on said bracket means at the lower portion of said motor, a first link pivotally connected to the upper portion of said motor, and a second link pivotally connected to the handlebar supporting bracket, said links being provided with longitudinal overlapping slots, connecting means received in said slots for holding said links in adjusted positions, a jack shaft rotatably carried by said fork and including a pair of axially spaced drive elements, first drive means for connecting said motor to one of said drive elements and second drive means for connecting the other drive element to said front wheel drive element, so that operation of said motor will effect rotation of said front wheel.
Claim 3
Dependent Claim
92 words
An electrically powered bicycle as defined in claim 1 further characterized in that said electric motor includes a pulley anD wherein one of said drive elements on said jack shaft includes a pulley aligned with said motor pulley and said first drive means including a belt for transferring rotary movement from said motor to said jack shaft, said other jack shaft drive element including a sprocket, with the drive element on said front wheel including an aligned sprocket, and wherein said second drive means includes a chain member operatively connecting said sprockets.
Claim 4
Dependent Claim
50 words
An electrically powered bicycle as defined in claim 2 further characterized in that said fork member includes handlebar means having a pair of outwardly extending handle guide members, with one of said handle guide members being provided with a control switch for effecting selected operation of said electric motor means.
Claim 5
Dependent Claim
45 words
An electrically powered bicycle as defined in claim 1 further characterized in that said bicycle includes two battery means, one mounted on each side of and adjacent the axis of said rear wheel, with said battery means being operatively connected to said electric motor means.
Claim 6
Dependent Claim
69 words
An electrically powered bicycle as defined in claim 1 further characterized in that said frame support means includes a rotatable sprocket having a pair of foot pedal means for effecting rotation of said sprocket, and wherein said sprocket is connected by a chain drive to a sprocket coaxially fixed to said rear wheel, whereby said foot pedal means can be operated for effecting rotary movement of said rear wheel.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |