US4142569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separable safety rims
Assignee: Dayton Steel Foundry Co
•
Filing: 1977-11-04
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Granted: 1979-03-06
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Expires: 1997-11-04
Abstract
Abstract Two-piece rim for mounting tires, single or dual, on a wheel. The removable bead ring has an axial projection intended for engagement by restraining means mounted on the wheel in the event a tire on said rim is unintentionally deflated. Various forms of restraining means are provided.
Inventors
- 👤 William D. Walther
- 👤 Louis F. Bolton
- 👤 Robert A. DeRegnaucourt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:16
CPC Classifications
B; B60; B60B; B60B25/00; B60B25/04; B60B25/14; B60B11/00; B60B11/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
115 words
The combination of a vehicle wheel and at least one tire carrying rim, each said rim comprising a fixed integral bead flange and a removable bead ring having a radially directed bead flange, characterized in that the medial portion of said bead flange of the removable bead ring has an axial projection providing a radially outwardly oriented annular shelf surface and that the wheel mounts a restraining means comprising an axial projection providing a radially inwardly oriented surface which in mounted condition is positioned and spaced radially outwardly of and opposed to said annular shelf surface, said opposed surfaces being intended for mating engagement in the event a tire on said rim is unintentionally deflated.
Claim 2
Dependent Claim
115 words
The combination of a vehicle wheel and at least one tire carrying rim, each said rim comprising a fixed integral bead flange and a removable bead ring having a radially directed bead flange, characterized in that the medial portion of said bead flange of the removable bead ring has an axial projection providing a radially outwardly oriented annular shelf surface and that the wheel mounts a restraining means comprising an axial projection providing a radially inwardly oriented surface which in mounted condition is positioned and spaced radially outwardly of and opposed to said annular shelf surface, said opposed surfaces being intended for mating engagement in the event a tire on said rim is unintentionally deflated.
Claim 3
Dependent Claim
94 words
A vehicle wheel according to claim 1 wherein an inner tire carrying rim and an outer tire carrying rim are separated from each other by a spacer mounted on a wheel felloe surface, further characterized in that said restraining means is formed by said spacer which comprises an annular rigid member having dual radially outer portions, each with a said axial restraining projection thereon, the radially inwardly oriented surface of each axial restraining projection being positioned and spaced radially outwardly of and opposed to an annular shelf surface on an adjacent removable bead ring.
Claim 4
Dependent Claim
76 words
A vehicle wheel according to claim 2 wherein an inner tire carrying rim and an outer tire carrying rim are separated from each other by a spacer mounted on a wheel felloe surface, further characterized in that said restraining means comprises an assembly formed by said spacer and dual restraining rings seated on said wheel felloe surface between said rims, each said restraining ring in mounted condition being clamped between an adjacent rim and said spacer.
Claim 5
Dependent Claim
28 words
A vehicle wheel according to claim 2, further characterized in that said radially outer portions of said spacer are "C-shaped" having upper legs forming said axial restraining projections.
Claim 6
Dependent Claim
61 words
A vehicle wheel according to claim 2 wherein said wheel comprises a felly surface for seating the medial portion of said tire carrying rim and said wheel is a disc wheel comprising a body portion, and said restraining means comprises a series of clamp elements positioned circumferentially around said wheel and which in mounted condition project radially from said body portion.
Claim 7
Dependent Claim
17 words
A vehicle wheel according to claim 5 wherein said clamp elements are carried by a full ring.
Claim 8
Dependent Claim
51 words
A vehicle wheel according to claim 2 wherein said restraining means comprises a series of clamp lugs positioned circumferentially around said wheel, each said clamp lug having an axially inner face which in mounted condition abuts with said rim and an axial projection which in mounted condition abuts with said wheel.
Claim 9
Dependent Claim
17 words
A vehicle wheel according to claim 7 wherein said clamp lugs are carried by a full ring.
Claim 10
Dependent Claim
60 words
A vehicle wheel according to claim 7 wherein said clamp lugs are two-piece having an axially outer element with an axial projection thereon which in mounted condition abuts with said wheel, and an axially inner element with an axially inner face thereon which in mounted condition abuts with said rim, said axial restraining projections being on said axially inner elements.
Claim 11
Dependent Claim
41 words
A vehicle wheel according to claim 9 wherein said axially outer and axially inner clamp elements have mating faces in conjugate contact permitting limited adjustment of said axial restraining projection relative to said removable bead ring during mounting on said wheel.
Claim 12
Dependent Claim
34 words
A vehicle wheel according to claim 10 wherein the radially inner end of said axially outer element has an enlarged bore permitting movement thereof relative to a mounting bolt projecting radially of said wheel.
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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) | 1982-03-05 | 1982-09-04 | 1983-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-05 | 1986-09-04 | 1987-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-05 | 1990-09-04 | 1991-03-06 | $7700.00 | Window Closed / Lapsed |