US3837895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic resin-glass-metal composite
Assignee: Olin Corp
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Filing: 1972-07-07
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Granted: 1974-09-24
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Expires: 1992-07-07
Abstract
Abstract A composite, the process of making the composite and articles formed of the composite. The composite comprises a copper base alloy component containing from about 2 to 12% aluminum and the balance essentially copper. A glass or ceramic component comprising a coating of a glass or ceramic frit covering from about 40 to 100% of the surface area of a major surface of the copper base alloy component. The glass or ceramic component is bonded to the copper base alloy component. A heat resistant organic resin coating is provided over the glass or ceramic component and the major surface of the copper base alloy component. The composite is particularly useful for cooking utensils.
Inventors
- 👤 M Pryor
- 👤 J Popplewell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:19
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/02; B; B05; B05D; B05D5/00; B05D5/08; B05D5/083; B05D5/086; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31623; Y10T428/31645; Y10T428/31649
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
60 words
A composite as in claim 1 wherein said copper base alloy component comprises from about 2 to 10% aluminum, from about 0.001 to 3% silicon, up to about 35% zinc, a grain refining element consisting essentially of iron up to about 4.5%, chromium up to about 1%, zirconium up to about 0.5%, cobalt up to about 1% and mixtures thereof.
Claim 2
Dependent Claim
28 words
A composite as in claim 2 wherein said heat resistant organic resin is a polyimide, a polymer of a halogenated ethylene or a halogenated propylene or a silicone.
Claim 3
Dependent Claim
29 words
A composite as in claim 2 wherein said copper base alloy consists essentially of 2.5 to 3.1% aluminum, 1.5 to 2.1% silicon, 0.25 and 0.55% cobalt, balance essentially copper.
Claim 4
Dependent Claim
28 words
A composite as in claim 4 wherein said heat resistant organic resin is a polyimide, a polymer of a halogenated ethylene or a halogenated propylene or a silicone.
Claim 5
Dependent Claim
30 words
A composite as in claim 2 wherein said copper base alloy consists essentially of 2.8 to 4.0% aluminum, 21 to 24.5% zinc and 0.1 to 1% cobalt balance essentially copper.
Claim 6
Dependent Claim
28 words
A composite as in claim 6 wherein said heat resistant organic resin is a polyimide, a polymer of a halogenated ethylene or a halogenated propylene or a silicone.
Claim 7
Dependent Claim
25 words
A composite as in claim 2 further including a glass or ceramic component bonded to said second major surface of said copper base alloy component.
Claim 8
Dependent Claim
25 words
A composite as in claim 4 further including a glass or ceramic component bonded to said second major surface of said copper base alloy component.
Claim 9
Dependent Claim
25 words
A composite as in claim 6 further including a glass or ceramic component bonded to said second major surface of said copper base alloy component.
Claim 10
Dependent Claim
138 words
A cooking utensil formed from a composite consisting essentially of: a copper base alloy component, said copper base alloy component comprising from about 2 to 12% aluminum and the balance essentially copper and having at least a first and a second major surface, said second major surface being in opposing relationship to said first major surface; a glass or ceramic component comprising a coating of a glass or ceramic frit covering from about 40 to 100% of the surface area of said first major surface, said glass or ceramic component being bonded to said copper base alloy component in a glass or ceramic-to-metal bond; and a heat resistant organic resin coating over said glass or ceramic component and said first major surface of said copper base alloy component, said heat resistant organic resin component comprising a cooking surface.
Claim 11
Dependent Claim
61 words
A cooking utensil as in claim 11 wherein said copper base alloy component comprises from about 2 to 10% aluminum, from about 0.001 to 3% silicon, up to about 35% zinc, a grain refining element consisting essentially of iron up to about 4.5%, chromium up to about 1%, zirconium up to about 0.5%, cobalt up to about 1% and mixtures thereof.
Claim 12
Dependent Claim
29 words
A cooking utensil as in claim 12 wherein said heat resistant organic resin is a polyimide, a polymer of a halogenated ethylene or a halogenated propylene or a silicone.
Claim 13
Dependent Claim
30 words
A cooking utensil as in claim 12 wherein said copper base alloy consists essentially of 2.5 to 3.1% aluminum, 1.5 to 2.1% silicon, 0.25 to 0.55% cobalt, balance essentially copper.
Claim 14
Dependent Claim
15 words
A cooking utensil as in claim 14 wherein said heat resistant organic resin comprises polytetrafluoroethylene.
Claim 15
Dependent Claim
31 words
A cooking utensil as in claim 12 wherein said copper base alloy consists essentially of 2.8 to 4.0% aluminum, 21 to 24.5% zinc and 0.1 to 1% cobalt balance essentially copper.
Claim 16
Dependent Claim
16 words
A cooking utensil as in claim 16 wherein said heat resistant organic resin component comprises polytetrafluoroethylene.
Claim 17
Dependent Claim
26 words
A cooking utensil as in claim 12 further including a glass or ceramic component bonded to said second major surface of said copper base alloy component.
Claim 18
Dependent Claim
26 words
A cooking utensil as in claim 14 further including a glass or ceramic component bonded to said second major surface of said copper base alloy component.
Claim 19
Dependent Claim
26 words
A cooking utensil as in claim 16 further including a glass or ceramic component bonded to said second major surface of said copper base alloy component.
Claim 20
Dependent Claim
134 words
A process of forming a composite comprising: providing a copper base alloy component comprising from about 2 to 12% aluminum and the balance essentially copper, said copper base alloy component having first and second major surfaces, said second major surface being opposed to said first major surface; coating said first major surface of said copper base alloy component with a glass or ceramic component, said glass or ceramic being a frit covering from about 40 to 100% of the surface area of said first major surface; joining said glass or ceramic component to said copper base alloy component in a glass or ceramic-to-metal bond; coating said first major surface and said glass or ceramic component with a heat resistant organic resin component; and curing said heat resistant organic resin component at an elevated temperature.
Claim 21
Dependent Claim
60 words
A process as in claim 21 wherein said copper base alloy component comprises from about 2 to 10% aluminum, from about 0.001 to 3% silicon, up to about 35% zinc, a grain refining element consisting essentially of iron up to about 4.5%, chromium up to about 1%, zirconium up to about 0.5%, cobalt up to about 1% and mixtures thereof.
Claim 22
Dependent Claim
29 words
A process as in claim 22 wherein said heat resistant organic resin component is a polyimide, a polymer of a halogenated ethylene or a halogenated propylene or a silicone.
Claim 23
Dependent Claim
29 words
A process as in claim 22 wherein said copper base alloy consists essentially of 2.5 to 3.1% aluminum, 1.5 to 2.1% silicon, 0.25 to 0.55% cobalt, balance essentially copper.
Claim 24
Dependent Claim
15 words
A process as in claim 24 wherein said heat resistant organic resin comprises a polytetrafluoroethylene.
Claim 25
Dependent Claim
30 words
A process as in claim 22 wherein said copper base alloy consists essentially of 2.8 to 4.0% aluminum, 21 to 24.5% zinc and 0.1 to 1% cobalt, balance essentially copper.
Claim 26
Dependent Claim
15 words
A process as in claim 26 wherein said heat resistant organic resin comprises a polytetrafluoroethylene.
Claim 27
Dependent Claim
25 words
A process as in claim 22 further including a glass or ceramic component bonded to said second major surface of said copper base alloy component.
Claim 28
Dependent Claim
25 words
A process as in claim 24 further including a glass or ceramic component bonded to said second major surface of said copper base alloy component.
Claim 29
Dependent Claim
25 words
A process as in claim 26 further including a glass or ceramic component bonded to said second major surface of said copper base alloy component.
Claim 30
Dependent Claim
15 words
A process as in claim 21 wherein said composite is formed into a cooking utensil.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |