US3695375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-purpose vehicle
Assignee: Individual
•
Filing: 1970-11-30
•
Granted: 1972-10-03
•
Expires: 1990-11-30
Abstract
Abstract A pair of semi-spherical hollow wheels are mounted for rotation to a body with the axes of rotation being at an angle to the horizontal so that the peripheries of the two wheels are substantially together at the underside of the body. Power is transmitted from the body through an axle to each wheel, said axle carrying a friction roller engaging a circular track on the inside of each wheel.
Inventors
- 👤 Thaddeus M Splawinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:14
CPC Classifications
B; B60; B60B; B60B19/00; B60B19/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A vehicle comprising a spherical body, a pair of hollow semispherical wheels disposed at opposite sides of said body and constituting sole supporting means therefor, said wheels having inwardly and upwardly slanted axes of rotation which intersect each other at the center of the spherical body, peripheral edges of said wheels having a point of contact with each other centrally below the body, the hollow wheels enclosing segmental portions of the body primarily at the opposite lower sides thereof and the spherical body existing wholly within the confines of said hollow wheels in the direction of travel of the vehicle, and propulsion means in the body operatively connected to said wheels for rotating the same.
Claim 2
Dependent Claim
115 words
A vehicle comprising a spherical body, a pair of hollow semispherical wheels disposed at opposite sides of said body and constituting sole supporting means therefor, said wheels having inwardly and upwardly slanted axes of rotation which intersect each other at the center of the spherical body, peripheral edges of said wheels having a point of contact with each other centrally below the body, the hollow wheels enclosing segmental portions of the body primarily at the opposite lower sides thereof and the spherical body existing wholly within the confines of said hollow wheels in the direction of travel of the vehicle, and propulsion means in the body operatively connected to said wheels for rotating the same.
References Cited (Backward Citations)
US1357571A
Cited
US2372043A
Cited
US2812031A
Cited
US2998996A
Cited
DE1226447B
Cited
US3424259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |