US3690393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic wheel
Assignee: Individual
•
Filing: 1971-03-19
•
Granted: 1972-09-12
•
Expires: 1991-03-19
Abstract
Abstract A magnetic wheel having axial end faces oppositely polarized magnetically, is maintained thereby in rolling contact with a magnetic flux conducting path. The wheel when driven propels a vehicle frame along the path without reliance on traction. Rolling contact is maintained by the magnetic field established by the flux extending between the end faces through the surface of the path producing contact holding forces acting on the nonpolarized rim of the wheel.
Inventors
- 👤 William K Guy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:11
CPC Classifications
A; A63; A63H; A63H19/00; A63H18/00; A63H18/10; A63H18/12; A63H18/16; A63H2018/165; Y; Y10; Y10S; Y10S180/00; Y10S180/901
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
61 words
In combination with a surface having a magnetic flux conducting property, a vehicle frame, and at least one wheel assembly rotatably mounted by the frame about a rotational axis, said wheel assembly including a substantially cylindrical body having axial end faces of opposite magnetic polarity and a nonpolarized rim extending axially between said end faces in operative relation to the surface.
Claim 2
Dependent Claim
61 words
In combination with a surface having a magnetic flux conducting property, a vehicle frame, and at least one wheel assembly rotatably mounted by the frame about a rotational axis, said wheel assembly including a substantially cylindrical body having axial end faces of opposite magnetic polarity and a nonpolarized rim extending axially between said end faces in operative relation to the surface.
Claim 3
Dependent Claim
30 words
The combination of claim 1 including anti-friction means on said rim for contact with the surface between the axial end faces along a line substantially parallel to the rotational axis.
Claim 4
Dependent Claim
13 words
The combination of claim 2 wherein said anti-friction means comprises a non-magnetic coating.
Claim 5
Dependent Claim
13 words
The combination of claim 3 wherein said cylindrical body is a permanent magnet.
Claim 6
Dependent Claim
18 words
The combination of claim 1 wherein said body is made from a plurality of axially laminated permanent magnets.
Claim 7
Dependent Claim
30 words
The combination of claim 5 including anti-friction means on said rim for contact with the surface between the axial end faces along a line substantially parallel to the rotational axis.
Claim 8
Dependent Claim
17 words
The combination of claim 1 wherein said body embeds electro-magnetic means for polarizing the axial end faces.
Claim 9
Dependent Claim
37 words
The combination of claim 1 including a source of motive energy mounted on the vehicle frame and means drivingly connecting said source to the wheel assembly for rotation thereof to propel the vehicle frame along the surface.
Claim 10
Dependent Claim
25 words
The combination of claim 1 wherein the end faces are magnetically polarized by an amount maintaining the rim in rolling contact with substantially no drag.
Claim 11
Dependent Claim
17 words
The combination of claim 9 wherein said body embeds electromagnetic means for polarizing the axial end faces.
Claim 12
Dependent Claim
37 words
The combination of claim 9 including a source of motive energy mounted on the vehicle frame and means drivingly connecting said source to the wheel assembly for rotation thereof to propel the vehicle frame along the surface.
Claim 13
Dependent Claim
30 words
The combination of claim 9 including anti-friction means on said rim for contact with the surface between the axial end faces along a line substantially parallel to the rotational axis.
References Cited (Backward Citations)
US2838009A
Cited
GB978600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |