US4073356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motorized skateboard
Assignee: Individual
•
Filing: 1977-01-24
•
Granted: 1978-02-14
•
Expires: 1997-01-24
Abstract
Abstract A skateboard having a fifth wheel attached to the board and coupled to a motor mounted on the board for driving the board in response to operation of the motor. The fifth wheel is attached to the board near the longitudinal center of the board and extends through a slot in the board for coupling to the motor. The board is resilient and the diameter of the driven wheel is of such dimension in relation to the height of the board above the ground and of the trucks that support the board, and in relation to the resiliency of the board and the height of its attachment to the board that drive wheel does not contact the ground to drive the board unless the weight of a person on the board is distributed toward the longitudinal center of the board so as to flex the longitudinal center of the board toward the ground.
Inventors
- 👤 Dennis R. Schlicht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:59
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/004; A63C17/01; A63C17/014; A63C17/015; A63C17/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
182 words
In a motorized skateboard, comprising; a resilient elongated board for supporting a person riding on the board; a pair of trucks attached to the board under opposite end portions of the board for supporting the board above the ground; and a motor supported on the board; wherein the improvement comprises: a fifth wheel drive means attached to the board and coupled to the motor for driving the board in response to operation of the motor; the fifth wheel drive means including a drive wheel; said drive wheel being attached to the board near the longitudinal center of the board, and having a diameter of such dimension in relation to the height of the board above the ground and of the trucks and in relation to resiliency of the board and the height of its attachment to the board that the drive wheel does not contact the ground to drive the board unless the weight of a person on the board is distributed toward the longitudinal center of the board so as to flex the longitudinal center of the board toward the ground.
Claim 2
Dependent Claim
182 words
In a motorized skateboard, comprising; a resilient elongated board for supporting a person riding on the board; a pair of trucks attached to the board under opposite end portions of the board for supporting the board above the ground; and a motor supported on the board; wherein the improvement comprises: a fifth wheel drive means attached to the board and coupled to the motor for driving the board in response to operation of the motor; the fifth wheel drive means including a drive wheel; said drive wheel being attached to the board near the longitudinal center of the board, and having a diameter of such dimension in relation to the height of the board above the ground and of the trucks and in relation to resiliency of the board and the height of its attachment to the board that the drive wheel does not contact the ground to drive the board unless the weight of a person on the board is distributed toward the longitudinal center of the board so as to flex the longitudinal center of the board toward the ground.
Claim 3
Dependent Claim
20 words
A motorized skateboard according to claim 1, characterized by; the motor being positioned near the longitudinal center of the board.
Claim 4
Dependent Claim
32 words
A motorized skateboard according to Claim 2, characterized by the board containing a slot near its longitudinal center, through which the drive wheel extends for coupling to the motor above the board.
Claim 5
Dependent Claim
24 words
A motorized skateboard according to claim 3, characterized by: a friction drive means by which the motor is permanently engaged to the drive wheel.
Claim 6
Dependent Claim
24 words
A motorized skateboard according to claim 1, characterized by: a friction drive means, by which the motor is permanently engaged to the drive wheel.
Claim 7
Dependent Claim
46 words
A motorized skateboard, according to claim 1, further comprising: a hand held control means for controlling the motor; and characterized by a cable means connecting the control means to the motor for enabling the motor to be operated by hand by a rider on the board.
Claim 8
Dependent Claim
72 words
A motorized skateboard according to claim 6, characterized by: the motor having a frame with a trigger means thereon for regulating the speed of the motor, the cable means including a sheath attached to the trigger means and a cable within the sheath anchored in relation to the frame; and the hand held control means including means attached to the sheath and cable for moving the sheath in relation to the cable.
Claim 9
Dependent Claim
17 words
A motorized skateboard according to claim 1, characterized by: the board being made of an aluminum alloy.
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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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |