Patent US4018570A successfully refreshed from Google Patents.
US4018570A
Expired / Lapsed
US
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Composite of a metallic material and vulcanized rubber
Assignee: Bridgestone Corp
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Filing: 1976-01-30
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Granted: 1977-04-19
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Expires: 1996-01-30
Abstract
Abstract A composite of a metallic material and vulcanized rubber is produced by contacting an unvulcanized rubber with a metallic material coated with a ternary alloy composed of copper, zinc and tin.
Inventors
- 👤 Yuzuru Nakamoto
- 👤 Eishi Kubota
- 👤 Fukushi Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:44
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/06; B60; B60C; B60C9/00; B60C9/0007; C; C08; C08J; C08J5/00; C08J5/12; B32B2255/00; B32B2255/06; B32B2255/20; B32B2255/205; B32B2311/00; B32B2311/12; B32B2311/16; B32B2311/20; B32B2605/00; C08J2321/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12007
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
43 words
A composite product which is a metallic base and a vulcanized rubber with an intermediate adhesive layer which is a tertiary alloy containing from 59 to 73% by weight copper, 23 to 34% by weight zinc, and 2 to 13% by weight tin.
Claim 2
Dependent Claim
43 words
A composite product which is a metallic base and a vulcanized rubber with an intermediate adhesive layer which is a tertiary alloy containing from 59 to 73% by weight copper, 23 to 34% by weight zinc, and 2 to 13% by weight tin.
Claim 3
Dependent Claim
50 words
A product as in claim 1 wherein the composition ratio of the ternary alloy is such that the weight ratio of copper to zinc is from 70:30 to 65:35, and the weight ratio of the total content of copper and zinc to that of tin is from 100:3 to 100:10.
Claim 4
Dependent Claim
18 words
A product of claim 1 wherein a cobalt salt of an organic acid is incorporated into the rubber.
Claim 5
Dependent Claim
14 words
A product of claim 1 which is a pneumatic tire reinforced by steel cord.
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) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |