Patent US4050495A successfully refreshed from Google Patents.
US4050495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable tread belt
Assignee: Goodyear Tire and Rubber Co
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Filing: 1976-01-05
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Granted: 1977-09-27
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Expires: 1996-01-05
Abstract
Abstract A removable tread installed as an annular belt about the circumference of a tire carcass. The inner surface of the removable tread belt and the outer surface of the tire carcass have an interengaging pattern to interlock the two. The removable tread belt has a plurality of axially oriented metal bars and an inextensible circumferential belt radially outwardly of the bars. The bars and the inextensible belt are encapsulated in a matrix of rubber. The ends of the bars extend outwardly to a point beyond the widest portion of the tire carcass sidewall. The tread belt has a tread pattern on its outer circumferential surface.
Inventors
- 👤 Richard J. Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:49
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/02
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
95 words
A removable tread belt for installing about the circumferential outer surface of a tire carcass, said removable tread belt comprising: an annular belt matrix having a ground contacting tread portion on the outer surface thereof, a plurality of rigid bars installed in said belt matrix at spaced intervals around the circumference thereof, said bars extending across substantially the entire axial width of said belt matrix and being spaced radially inwardly of said tread portion, and interlocking means on the inner surface of said belt matrix for engaging complementary interlocking means carried by said tire carcass.
Claim 2
Dependent Claim
95 words
A removable tread belt for installing about the circumferential outer surface of a tire carcass, said removable tread belt comprising: an annular belt matrix having a ground contacting tread portion on the outer surface thereof, a plurality of rigid bars installed in said belt matrix at spaced intervals around the circumference thereof, said bars extending across substantially the entire axial width of said belt matrix and being spaced radially inwardly of said tread portion, and interlocking means on the inner surface of said belt matrix for engaging complementary interlocking means carried by said tire carcass.
Claim 3
Dependent Claim
24 words
The removable tread belt of claim 1 wherein said bars are oriented in the direction of the axis of rotation of the tire carcass.
Claim 4
Dependent Claim
30 words
The removable tread belt of claim 2 wherein said bars are elongated circumferentially in cross-section, with the cross-sectional axis of each said bar perpendicular to a radius of the tire.
Claim 5
Dependent Claim
15 words
The removable tread belt of claim 3 wherein each said bar is of quadratic shape.
Claim 6
Dependent Claim
30 words
The removable tread belt of claim 1 wherein said bars are spaced apart circumferentially a distance of from 75 percent to 125 percent of the circumferential dimension of said bar.
Claim 7
Dependent Claim
38 words
The removable tread belt of claim 1 wherein said bars have an axial dimension at least equal to that of the outer circumferential surface of the tire carcass with which said removable tread belt is to be used.
Claim 8
Dependent Claim
26 words
The removable tread belt of claim 6 wherein said bars extend axially outwardly beyond the outermost point of at least one sidewall of the tire carcass.
Claim 9
Dependent Claim
17 words
The removable tread belt of claim 1 wherein said bars are completely covered by said belt matrix.
Claim 10
Dependent Claim
25 words
The removable tread belt of claim 1 further comprising an inextensible annular belt installed in said belt matrix and located radially outwardly of said bars.
Claim 11
Dependent Claim
21 words
The removable tread belt of claim 9 wherein said inextensible annular belt comprises circumferential wires oriented substantially perpendicular to said bars.
Claim 12
Dependent Claim
15 words
The removable tread belt of claim 1 wherein said bars are of heat conducting material.
Claim 13
Dependent Claim
41 words
The removable tread belt of claim 1 wherein said interlocking means comprises a plurality of lands and grooves so oriented as to prevent axial movement of said removable tread belt with respect to the outer circumferential surface of the tire carcass.
Claim 14
Dependent Claim
29 words
In combination with the removable tread belt of claim 1, a tire carcass comprising an outer circumferential surface having an axial dimension no greater than that of said bars.
Claim 15
Dependent Claim
35 words
The combination of claim 12 wherein said tire carcass further comprises a complementary interlocking means on said outer circumferential carcass surface engageable with said interlocking means of said inner surface of said removable tread belt.
Claim 16
Dependent Claim
17 words
The combination of claim 13 wherein said carcass has an aspect ratio of not greater than 0.70.
Claim 17
Dependent Claim
17 words
The combination of claim 15 wherein said aspect ratio is in the range of 0.04 to 0.55.
Claim 18
Dependent Claim
12 words
The combination of claim 13 wherein said carcass is radial ply construction.
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) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |