US4334565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire insert
Assignee: UG Licensing Services Inc
•
Filing: 1980-06-25
•
Granted: 1982-06-15
•
Expires: 2000-06-25
Abstract
Abstract A toroidal insert for an inflated, tubeless, pneumatic tire. The insert comprises a preformed torus-like core, tire cord radially wound around the torus-like core, and at least one load bearing member having tire cord therein, said member being circumferentially wound around substantially the middle one third of the radially outer surface of the radially wound tire cord. The insert, when situated within the inflated tire, includes a cross-section having a thick, substantially oval, central portion extending between the beads of the inflated tire and a pair of thin end portions each extending from its respective side of the thick, oval, central portion along the adjacent sidewall of said inflated tire to about the midpoint of said adjacent sidewall, whereby, when the tire is deflated, the thick, oval, central portion of the insert supports the tread portion of the deflated tire and each of the thin end portions of the insert lies between and supports the adjacent, collapsed sidewall of the deflated tire.
Inventors
- 👤 Leonard S. Stokes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:22
CPC Classifications
B; B60; B60C; B60C17/00; B60C17/04; B60C17/06; B60B; B60B21/00; B60B21/12; B60C17/065; B60C2017/068; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279; Y10T152/10378; Y10T152/10387; Y10T152/10396; Y10T152/10405
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
127 words
A toroidal insert for a tubeless, pnuematic tire consisting of: a preformed, torus-like cellular or foam core having a central axis, a radially inner surface portion with respect to said central axis, a radially outer surface portion with respect to said central axis; tire cord radially wound around said core; and at least one belt-like load bearing member having tire cord therein, said belt-like member being wound around the outer diametrical surface portion of said torus-like core such that the insert, in cross-section, has a relatively thick, substantially oval middle portion and a pair of relatively thin leg portions each extending from a respective side of the substantially oval middle portion, said belt-like member surrounding said substantially oval middle portion but not extending into said leg portions.
Claim 2
Dependent Claim
127 words
A toroidal insert for a tubeless, pnuematic tire consisting of: a preformed, torus-like cellular or foam core having a central axis, a radially inner surface portion with respect to said central axis, a radially outer surface portion with respect to said central axis; tire cord radially wound around said core; and at least one belt-like load bearing member having tire cord therein, said belt-like member being wound around the outer diametrical surface portion of said torus-like core such that the insert, in cross-section, has a relatively thick, substantially oval middle portion and a pair of relatively thin leg portions each extending from a respective side of the substantially oval middle portion, said belt-like member surrounding said substantially oval middle portion but not extending into said leg portions.
Claim 3
Dependent Claim
13 words
The insert of claim 1, wherein the core is formed from polyurethane foam.
Claim 4
Dependent Claim
14 words
The insert of claim 1, wherein the radially wound tire cord comprises steel wire.
Claim 5
Dependent Claim
18 words
The insert of claim 3, wherein the tire cord in the belt-like load bearing member comprises steel wire.
Claim 6
Dependent Claim
15 words
The insert of claim 1, wherein the belt-like load bearing member is arcuate in cross-section.
Claim 7
Dependent Claim
16 words
The insert of claim 1, wherein the belt-like load bearing member is substantially flat in cross-section.
Claim 8
Dependent Claim
227 words
In combination, a tire rim, a tubeless pneumatic tire mounted on said rim, said tire having a tread and sidewalls, and a toroidal insert lying within and adjacent the sidewalls of said tire, said insert consisting of a preformed, torus-like cellular or foam core having a central axis, a radially inner surface portion with respect to said central axis, a radially outer surface portion with respect to said central axis, tire cord radially wound around said core, and at least one belt-like load bearing member having tire cord therein, said belt-like member being circumferentially wound around the radially outer surface portion such that the insert, in cross-section, has relatively thick, substantially oval middle portion extending between the beads of said tire and a pair of relatively thin leg portions each extending from a respective side of the substantially oval middle portion along a respective adjacent sidewall of said tire, to about the midpoint of said adjacent sidewall, said belt-like member surrounding said substantially oval middle portion but not extending into said leg portions and whereby, when the tire is deflated while supporting a rated load the tread and sidewalls collapse, with the substantially oval middle portion of the insert supporting the collapsed tread portion of the tire, and each of the leg portions of the insert lying between and supporting the adjacent, collapsed sidewalls of the tire.
Claim 9
Dependent Claim
227 words
In combination, a tire rim, a tubeless pneumatic tire mounted on said rim, said tire having a tread and sidewalls, and a toroidal insert lying within and adjacent the sidewalls of said tire, said insert consisting of a preformed, torus-like cellular or foam core having a central axis, a radially inner surface portion with respect to said central axis, a radially outer surface portion with respect to said central axis, tire cord radially wound around said core, and at least one belt-like load bearing member having tire cord therein, said belt-like member being circumferentially wound around the radially outer surface portion such that the insert, in cross-section, has relatively thick, substantially oval middle portion extending between the beads of said tire and a pair of relatively thin leg portions each extending from a respective side of the substantially oval middle portion along a respective adjacent sidewall of said tire, to about the midpoint of said adjacent sidewall, said belt-like member surrounding said substantially oval middle portion but not extending into said leg portions and whereby, when the tire is deflated while supporting a rated load the tread and sidewalls collapse, with the substantially oval middle portion of the insert supporting the collapsed tread portion of the tire, and each of the leg portions of the insert lying between and supporting the adjacent, collapsed sidewalls of the tire.
Claim 10
Dependent Claim
14 words
The combination of claim 7, wherein the core is formed from a cellular material.
Claim 11
Dependent Claim
14 words
The combination of claim 7, wherein the radially wound tire cord comprises steel wire.
References Cited (Backward Citations)
US3250310A
Cited
US3854516A
Cited
US3935892A
Cited
US3949796A
Cited
US4003419A
Cited
US4071386A
Cited
US3996985A
Cited
US4008743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-14 | 1985-12-14 | 1986-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-14 | 1989-12-14 | 1990-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-14 | 1993-12-14 | 1994-06-15 | $7700.00 | Window Closed / Lapsed |