US3829162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel assemblies
Assignee: Dunlop Ltd
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Filing: 1972-07-26
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Granted: 1974-08-13
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Expires: 1992-07-26
Abstract
Abstract A wheel assembly comprising a wheel having disc and rim portions, a drive means in the form of a number of circumferentially spaced drive dogs arranged to extend substantially parallel to the intended axis of rotation of the wheel assembly, and an intermediate circumferentially extending heat isolating member arranged to extend between the drive dogs and the wheel, of which the following is a specification.
Inventors
- 👤 I Stimson
- 👤 F Dowell
- 👤 B Healy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:49
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/12; F16D65/125; F16D65/126; B; B60; B60T; B60T1/00; B60T1/02; B60T1/06; B60T1/065; F16D55/00; F16D55/24; F16D55/26; F16D55/36; F16D55/40; F16D65/123; F16D2055/0004; F16D2055/0058; F16D2065/13; F16D2065/134; F16D2065/1356; F16D2065/1368; F16D2065/1372; F16D2065/138; F16D65/78; F16D2065/785
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
58 words
A wheel assembly comprising a wheel having disc and rim portions, a drive means in the form of a number of circumferentially spaced drive dogs arranged to extend substantially parallel to the intended axis of rotation of the wheel assembly and an intermediate circumferentially extending heat isolating member arranged to extend between the drive dogs and the wheel.
Claim 2
Dependent Claim
58 words
A wheel assembly comprising a wheel having disc and rim portions, a drive means in the form of a number of circumferentially spaced drive dogs arranged to extend substantially parallel to the intended axis of rotation of the wheel assembly and an intermediate circumferentially extending heat isolating member arranged to extend between the drive dogs and the wheel.
Claim 3
Dependent Claim
46 words
A wheel assembly according to claim 1 in which the drive doGs are mounted on an isolating member in the form of a flexible sheet metal drum which extends co-axially within but spaced from the wheel except at its points of attachment to or support thereon.
Claim 4
Dependent Claim
41 words
A wheel assembly according to claim 2 in which one edge of the drum is operatively associated with the disc portion of the wheel and the other edge of the drum is operatively associated with the rim portion of the wheel.
Claim 5
Dependent Claim
72 words
A wheel assembly according to claim 3 in which the edge of the drum associated with the rim portion of the wheel is arranged to extend radially outwardly into contact with the wheel at an angle relative to the intended axis of rotation of the wheel assembly and the other edge of the drum is provided with a radially inwardly extending flange which is secured to the disc portion of the wheel.
Claim 6
Dependent Claim
23 words
A wheel assembly according to claim 4 in which the radially outwardly turned edge of the drum is secured to the wheel rim.
Claim 7
Dependent Claim
23 words
A wheel assembly according to claim 2 in which both edges of the drum are secured to the rim portion of the wheel.
Claim 8
Dependent Claim
20 words
A wheel assembly according to claim 2 in which heat insulating material is provided between the drum and the wheel.
Claim 9
Dependent Claim
36 words
A wheel assembly according to claim 2 in which the drum is supported intermediate its edges on a number of radially inwardly projecting circumferentially extending annular ridges formed on the inner periphery of the wheel rim.
Claim 10
Dependent Claim
113 words
A wheel assembly according to claim 2 in which each drive dog has a dove-tail shaped radial cross-section and is mounted on the drum by means of at least two sets of radially inwardly extending tabs spaced along the length of the dog, the tabs of each pair being arranged to extend one on each side of the drive dog and inclined inwardly towards each other in order to co-operate with the drive dog thereby preventing its radially inward and circumferential movement, the portion of the drum between the sets of tabs being arranged to extend on the radially outer side of the drive dog thereby preventing radially outward movement of the dog.
Claim 11
Dependent Claim
35 words
A wheel assembly according to claim 9 in which each drive dog is located against axial movement by a further set of radially inwardly extending tabs arranged to engage the ends of the drive dog.
Claim 12
Dependent Claim
50 words
A wheel assembly according to claim 9 in which arcuate metal strips are secured to the drum between adjacent drive dogs, these strips being arranged to bear against the rear free faces of the tabs which locate the drive dogs against radially inward and circumferential movement thereby strengthening the tabs.
Claim 13
Dependent Claim
18 words
A wheel assembly according to claim 9 in which the drive dogs are formed from reinforced carbon material.
Claim 14
Dependent Claim
17 words
A wheel assembly according to claim 9 in which the drive dogs are formed from ceramic material.
Claim 15
Dependent Claim
20 words
A wheel assembly according to claim 2 in which the drive dogs are formed from flanged channel section sheet metal.
Claim 16
Dependent Claim
50 words
A wheel assembly in accordance with claim 1 wherein said heat isolating member is in the form of a sheet metal drum, said drum having an edge disposed remotely from the disc portion of said wheel and is provided with V-shaped cut out portions to effect flexibility of the drum.
Claim 17
Dependent Claim
32 words
A wheel assembly according to claim 15 including circumferentially extending ribs formed integrally within the drum adjacent to the ends of the drive dogs remote from the disc portion of said wheel.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |