US3811488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire with an upper sidewall protector
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1972-08-21
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Granted: 1974-05-21
•
Expires: 1992-08-21
Abstract
Abstract A radial tire provided with a plurality of tread rib extensions which are disposed in the upper sidewalls of the tire and project outwardly of the sidewalls to protect them from pointed rocks and other sharp-edged objects which could pierce the sidewalls and ruin the tire.
Inventors
- 👤 E Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:28
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/01; B60C13/00; B60C13/003; B60C3/00; B60C3/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
256 words
A tire comprising, a ground contacting thread; a pair of sidewalls; a plurality of projecting lugs arcuately spaced around at least one of the upper sidewalls of the tire adjacent the tread, for protecting the adjacent sidewall of the tire from sharp objects which can pierce the sidewall and ruin the tire, the lugs extending in a direction from the centerplane of the tire beyond the adjacent sidewall, each of the lugs formed between an inner surface and an outer surface which is farther, measured radially from the center axis of the tire, than the inner surface; and characterized by, (i) a fillet at the juncture of the inner radial surface of each of the projecting lugs and adjacent sidewall, the fillets each having an outer curved surface between the inner radial surface and adjacent sidewall, the outer curved surface of the fillets being concave relative to the centerplane and having a radius (R) of curvature which is 0.4 to 1.3 times the section height (SH) of the tire when the tire is unloaded and inflated, and (ii) a groove separating each pair of adjacent lugs and intersecting outer surfaces of the lugs at points which are a distance (K), measured from the intersection of the tread and lugs towards the center axis of the tire, which is 0.15 to 0.4 times the section height (SH) of the tire when the tire is unloaded and inflated, the grooves intersecting the lugs adjacent portions of the lugs in farthest spaced relation from the centerplane of the tire.
Claim 2
Dependent Claim
256 words
A tire comprising, a ground contacting thread; a pair of sidewalls; a plurality of projecting lugs arcuately spaced around at least one of the upper sidewalls of the tire adjacent the tread, for protecting the adjacent sidewall of the tire from sharp objects which can pierce the sidewall and ruin the tire, the lugs extending in a direction from the centerplane of the tire beyond the adjacent sidewall, each of the lugs formed between an inner surface and an outer surface which is farther, measured radially from the center axis of the tire, than the inner surface; and characterized by, (i) a fillet at the juncture of the inner radial surface of each of the projecting lugs and adjacent sidewall, the fillets each having an outer curved surface between the inner radial surface and adjacent sidewall, the outer curved surface of the fillets being concave relative to the centerplane and having a radius (R) of curvature which is 0.4 to 1.3 times the section height (SH) of the tire when the tire is unloaded and inflated, and (ii) a groove separating each pair of adjacent lugs and intersecting outer surfaces of the lugs at points which are a distance (K), measured from the intersection of the tread and lugs towards the center axis of the tire, which is 0.15 to 0.4 times the section height (SH) of the tire when the tire is unloaded and inflated, the grooves intersecting the lugs adjacent portions of the lugs in farthest spaced relation from the centerplane of the tire.
Claim 3
Dependent Claim
42 words
The tire of claim 1, characterized in that each projecting lug has an outer radial surface having a radius (R1) of curvature which is 0.15 to 0.55 times the section height (SH) of the tire when the tire is unloaded and inflated.
Claim 4
Dependent Claim
35 words
The tire of claim 2, characterized in that each projecting lug has inner and outer radial surfaces which have a common radius (R1) of curvature and are convex relative to the centerplane of the tire.
Claim 5
Dependent Claim
239 words
A tire comprising, a ground contacting tread; a pair of sidewalls; a plurality of projecting lugs arcuately spaced around at least one of the upper sidewalls of the tire adjacent the tread, for protecting the adjacent sidewall of the tire from sharp objects which can pierce the sidewall and ruin the tire, the lugs extending in a direction from the centerplane of the tire beyond the adjacent sidewall, each of the lugs formed between an inner surface and an outer surface which is farther, measured radially from the center axis of the tire, than the inner surface; and characterized by, (i) a curved surface which extends between the inner radial surface of each projecting lug and adjacent surface of an adjacent sidewall, and is concave relative to the centerplane of the tire, and has a radius (R) of curvature which is 0.4 to 1.3 times the section height (SH) of the tire when the tire is unloaded and inflated, and (ii) a groove separating each pair of adjacent lugs and intersecting outer surfaces of the lugs at points which are a distance (K), measured from the intersection of the tread and lugs towards the center axis of the tire, which is 0.15 to 0.4 times the section height (SH) of the tire when the tire is unloaded and inflated, the grooves intersecting the lugs adjacent portions of the lugs in farthest spaced relation from the centerplane of the tire.
Claim 6
Dependent Claim
239 words
A tire comprising, a ground contacting tread; a pair of sidewalls; a plurality of projecting lugs arcuately spaced around at least one of the upper sidewalls of the tire adjacent the tread, for protecting the adjacent sidewall of the tire from sharp objects which can pierce the sidewall and ruin the tire, the lugs extending in a direction from the centerplane of the tire beyond the adjacent sidewall, each of the lugs formed between an inner surface and an outer surface which is farther, measured radially from the center axis of the tire, than the inner surface; and characterized by, (i) a curved surface which extends between the inner radial surface of each projecting lug and adjacent surface of an adjacent sidewall, and is concave relative to the centerplane of the tire, and has a radius (R) of curvature which is 0.4 to 1.3 times the section height (SH) of the tire when the tire is unloaded and inflated, and (ii) a groove separating each pair of adjacent lugs and intersecting outer surfaces of the lugs at points which are a distance (K), measured from the intersection of the tread and lugs towards the center axis of the tire, which is 0.15 to 0.4 times the section height (SH) of the tire when the tire is unloaded and inflated, the grooves intersecting the lugs adjacent portions of the lugs in farthest spaced relation from the centerplane of the tire.
Claim 7
Dependent Claim
51 words
The tire of claim 4, characterized in that each projecting lug has an outer radial surface which is convexly curved relative to the centerplane and has a radius (R1) of curvature which is 0.15 to 0.55 times the section height (SH) of the tire when the tire is unloaded and inflated.
Claim 8
Dependent Claim
55 words
The tire of claim 4, characterized in that each projecting lug has inner and outer radial surfaces which are convex relative to the centerplane of the tire and have a common radius (R1) of curvature which is 0.15 to 0.55 times the section height (SH) of the tire when the tire is unloaded and inflated.
Claim 9
Dependent Claim
38 words
The tire of claim 4, characterized in that each projecting lug has intersecting inner and outer radial surfaces forming a ridge which extends outwardly of the adjacent sidewall when the tire is in a loaded and unloaded condition.
Claim 10
Dependent Claim
55 words
The tire of claim 4, characterized in that the concave surface of each lug joins an adjacent surface of an adjacent sidewall such that a line tangential to the concave surface at the juncture of the concave surface with the adjacent surface of the sidewall, is also tangential to the adjacent surface of the sidewall.
Claim 11
Dependent Claim
211 words
A tire comprising a ground contacting tread; a pair of sidewalls; a plurality of projecting lugs arcuately spaced around at least one of the upper sidewalls of the tire adjacent the tread, for protecting the adjacent sidewall of the tire from sharp objects which can pierce the sidewall and ruin the tire, the lugs extending in a direction from the centerplane of the tire beyond the adjacent sidewall, each of the lugs formed between an inner surface and an outer surface which is farther, measured radially from the center axis of the tire, than the inner surface; and characterized by (i) a groove separating each pair of adjacent lugs and intersecting outer surfaces of the lugs at points which are a distance (K), measured from the intersection of the tread and lugs towards the center axis of the tire, which is 0.15 to 0.4 times the section height (SH) of the tire when the tire is unloaded and inflated, the grooves intersecting the lugs adjacent portions of the lugs in farthest spaced relation from the centerplane of the tire, and (ii) in that each projecting lug has an outer radial surface which has a radius (R1) of curvature which is 0.15 to 0.55 times the section height (SH) of the tire.
Claim 12
Dependent Claim
211 words
A tire comprising a ground contacting tread; a pair of sidewalls; a plurality of projecting lugs arcuately spaced around at least one of the upper sidewalls of the tire adjacent the tread, for protecting the adjacent sidewall of the tire from sharp objects which can pierce the sidewall and ruin the tire, the lugs extending in a direction from the centerplane of the tire beyond the adjacent sidewall, each of the lugs formed between an inner surface and an outer surface which is farther, measured radially from the center axis of the tire, than the inner surface; and characterized by (i) a groove separating each pair of adjacent lugs and intersecting outer surfaces of the lugs at points which are a distance (K), measured from the intersection of the tread and lugs towards the center axis of the tire, which is 0.15 to 0.4 times the section height (SH) of the tire when the tire is unloaded and inflated, the grooves intersecting the lugs adjacent portions of the lugs in farthest spaced relation from the centerplane of the tire, and (ii) in that each projecting lug has an outer radial surface which has a radius (R1) of curvature which is 0.15 to 0.55 times the section height (SH) of the tire.
Claim 13
Dependent Claim
35 words
The tire of claim 9, characterized in that the inner and outer radial surfaces of each projecting lug have a common radius (R1) of curvature and are convex relative to the centerplane of the tire.
Claim 14
Dependent Claim
34 words
The tire of claim 9 characterized in that the overall width (W) of a pair of opposing lugs projecting from opposing sidewalls is 1 to 1.2 times the section diameter (SD) of the tire.
Claim 15
Dependent Claim
123 words
A tire comprising a tread, a pair of sidewalls extending from the tread, at least two spaced projecting lugs disposed in an upper sidewall adjacent the tread and extending in a direction from the centerplane of the tire laterally beyond an adjacent sidewall, and characterized by a groove which separates the projecting lugs and intersects outer surfaces of the lugs at points which are a distance (K), measured from the intersection of the tread and lugs towards the center axis of the tire, which is 0.15 to 0.4 times the section height (SH) of the tire when the tire is unloaded and infalted, the groove intersecting the lugs adjacent portions of the lugs in farthest spaced relation from the centerplane of the tire.
Claim 16
Dependent Claim
123 words
A tire comprising a tread, a pair of sidewalls extending from the tread, at least two spaced projecting lugs disposed in an upper sidewall adjacent the tread and extending in a direction from the centerplane of the tire laterally beyond an adjacent sidewall, and characterized by a groove which separates the projecting lugs and intersects outer surfaces of the lugs at points which are a distance (K), measured from the intersection of the tread and lugs towards the center axis of the tire, which is 0.15 to 0.4 times the section height (SH) of the tire when the tire is unloaded and infalted, the groove intersecting the lugs adjacent portions of the lugs in farthest spaced relation from the centerplane of the tire.
Claim 17
Dependent Claim
45 words
The tire of claim 12, characterized in that the groove includes a resilient protuberance adjacent the outer surfaces of the lugs, a portion of the protuberance, closest said surfaces, being removed to form a channel which is generally parallel to the centerplane of the tire.
Claim 18
Dependent Claim
46 words
The tire of claim 13, wherein the channel, closest the center axis of the tire, is concavely curved relative to the centerplane and has a radius of curvature (r) which is from 0.3 to 1 times the depth (d) of the groove measured at the centerplane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |