US3769123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making non-cracking decorative sidewalls of tires
Assignee: Goodyear Tire and Rubber Co
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Filing: 1971-03-24
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Granted: 1973-10-30
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Expires: 1991-03-24
Abstract
Abstract A method of providing a decorative sidewall in a tire in which a sub-surface layer of rubber is provided in the sidewall and a surface layer of rubber is provided over the sub-surface layer, a raised circumferentially extending continuous rib is formed in the sidewall, said rib having a series of discontinuous depressions therein; the outer surface of the rib is ground slightly to expose the sub-surface layer in the rib while leaving the surface layer in the bases of the depressions. The foregoing abstract is not to be taken as limiting the invention of this application, and in order to understand the full nature and extent of the technical disclosure of this application, reference must be made to the accompanying drawings and the following detailed description.
Inventors
- 👤 J Botts
- 👤 C Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:53
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/72; B60; B60C; B60C13/00; B60C13/001; B29D2030/726
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
161 words
A method of providing a decorative sidewall on a pneumatic tire comprising: providing a sub-surface layer of vulcanizable elastomeric material in said sidewall, providing a surface layer of vulcanizable elastomeric material over said sub-surface layer which is of a color contrasting with said sub-surface layer, forming a raised endless rib extending circumferentially of said tire on said sidewall and located at least in part in the area of said surface layer and said sub-surface layer, forming depressions in said raised rib which are discontinuous in a circumferential direction and in the form of large letters, said depressions being surrounded on all sides by a heavy even gauge of the rubber of said rib, vulcanizing the tire while maintaining said rib and depressions on the sidewall, and removing a layer of elastomeric material from the outer surface of said rib to expose said sub-surface layer in portions of said rib but not expose said sub-surface layer in the bases of said depression.
Claim 2
Independent Claim
161 words
A method of providing a decorative sidewall on a pneumatic tire comprising: providing a sub-surface layer of vulcanizable elastomeric material in said sidewall, providing a surface layer of vulcanizable elastomeric material over said sub-surface layer which is of a color contrasting with said sub-surface layer, forming a raised endless rib extending circumferentially of said tire on said sidewall and located at least in part in the area of said surface layer and said sub-surface layer, forming depressions in said raised rib which are discontinuous in a circumferential direction and in the form of large letters, said depressions being surrounded on all sides by a heavy even gauge of the rubber of said rib, vulcanizing the tire while maintaining said rib and depressions on the sidewall, and removing a layer of elastomeric material from the outer surface of said rib to expose said sub-surface layer in portions of said rib but not expose said sub-surface layer in the bases of said depression.
Claim 3
Dependent Claim
61 words
A method as claimed in claim 1, wherein said sub-surface layer of vulcanizable elastomeric material is provided in said sidewall by wrapping a strip of vulcanizable elastomeric material about said tire in said sidewall area and said surface layer of vulcanizable elastomeric material is provided by wrapping a strip of vulcanizable elastomeric material about said tire and over said sub-surface layer.
Claim 4
Dependent Claim
102 words
A method as claimed in claim 2, in which said subsurface layer is wider than said surface layer and said surface layer is wrapped about said sub-surface layer in a central position with respect thereto, such that the lateral edges of said sub-surface layer extend laterally beyond the lateral edges of said surface layer and further including wrapping a pair of additional strips of elastomeric material about said tire in parallel spaced apart relationship with their adjacent edges overlapping the lateral edges of said surface layer, said additional layers being of a contrasting color to said subsurface layer and said surface layer.
Claim 5
Dependent Claim
21 words
A method as claimed in claim 3, wherein said depressions are confined to the space between said pair of additional strips.
Claim 6
Dependent Claim
35 words
A method as claimed in claim 4, wherein a layer of elastomeric material is removed from the outeR surface of said raised rib by grinding the outer surface of said rib the entire length thereof.
Claim 7
Dependent Claim
35 words
A method as claimed in claim 2, wherein a layer of elastomeric material is removed from the outer surface of said raised rib by grinding the outer surface of said rib the entire length thereof.
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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |