Patent US2166533A successfully refreshed from Google Patents.
Patent US3672458A successfully refreshed from Google Patents.
US3672458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driver wheel of vehicle
Assignee: Ustav Pro Vyzkum Motorovych Vozidel
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Filing: 1970-02-16
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Granted: 1972-06-27
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Expires: 1990-02-16
Abstract
Abstract A self-propelled driver wheel for a vehicle comprising a plurality of linearly expandable spokes uniformly arranged about a central hub, each spoke being separately joined to a supply of fluid under pressure and being provided with distributor means for selectively distributing the fluid to the spokes whereby on expansion thereof the wheel is caused to turn.
Inventors
- 👤 Julius Mackerle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:09
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/22; F03C1/24; F03C1/247; B; B60; B60K; B60K7/00; B60K7/0023; B60K2007/0038; B60K2007/0092; B60K7/0015
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
134 words
In a vehicle, a driver wheel comprising a circular rim, a hub, a plurality of radially expandable spokes, each of which comprises a cylinder and piston assembly, one of said cylinder assemblies being of predetermined length and being securely fixed at its ends to said rim and said hub respectively, the remaining cylinder and piston assemblies being pivotally jointed to said rim and said hub and arranged uniformly about said wheel, each of said cylinders being separately connected to a supply of fluid under pressure, said wheel being provided with distributor means for selectively supplying fluid to said cylinders to expand the same when said cylinders respectively lie outside of a plane perpendicular to the ground and passing through the axis of said hub, whereby on expansion thereof the wheel is caused to turn.
Claim 2
Dependent Claim
134 words
In a vehicle, a driver wheel comprising a circular rim, a hub, a plurality of radially expandable spokes, each of which comprises a cylinder and piston assembly, one of said cylinder assemblies being of predetermined length and being securely fixed at its ends to said rim and said hub respectively, the remaining cylinder and piston assemblies being pivotally jointed to said rim and said hub and arranged uniformly about said wheel, each of said cylinders being separately connected to a supply of fluid under pressure, said wheel being provided with distributor means for selectively supplying fluid to said cylinders to expand the same when said cylinders respectively lie outside of a plane perpendicular to the ground and passing through the axis of said hub, whereby on expansion thereof the wheel is caused to turn.
Claim 3
Dependent Claim
18 words
The driver according to claim 1 including a supporting shim mounted between said cylinder assemblies and said rim.
Claim 4
Dependent Claim
24 words
The driver according to claim 1, wherein said rim is resilient and is deformable in a radial direction on actuation of said cylinder assemblies.
Claim 5
Dependent Claim
16 words
The driver according to claim 1, wherein said hub is freely mounted about a fixed axle.
Claim 6
Dependent Claim
16 words
The driver according to claim 1, wherein said cylinder assemblies are metallic and support said wheel.
Claim 7
Dependent Claim
19 words
The driver according to claim 1, wherein said supply of fluid under pressure is obtained from a compressor pump.
Claim 8
Dependent Claim
29 words
The driver according to claim 1, wherein said supply of fluid under pressure is stored in a fixed volumetric reservoirs, and is fed and withdrawn alternately from selected spokes.
References Cited (Backward Citations)
US574200A
Cited
US3194180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |