US3621188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding electrode
Assignee: Eutectic Corp
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Filing: 1968-10-25
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Granted: 1971-11-16
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Expires: 1988-10-25
Abstract
Abstract This invention comprises a coated electrode having a core of copper or a copper alloy and aluminum or an aluminum alloy. The coating of the electrode is composed of the fluoride of at least one of the metals chosen from the group consisting of aluminum, sodium, lithium, potassium, barium, calcium, zinc, tin and cadmium, and the chloride of at least one of the metals chosen from the same group.
Inventors
- 👤 A David Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:45
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/28; B23K35/286; B23K35/02; B23K35/0255; B23K35/0261; B23K35/0272; B23K35/36; B23K35/3601; B23K35/3603
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
24 words
The electrode of claim 1 wherein said fluoride content constituting 15 to 45 percent of the coating, and the chloride content constituting the remainder.
Claim 2
Dependent Claim
19 words
an aluminum alloy having 85 percent aluminum, 15 percent silicon B. a coating on the core, the coating comprising:
Claim 3
Dependent Claim
20 words
70 percent of chloride selected from the group consisting of aluminum, sodium, lithium, potassium, barium, calcium, zinc, tin and cadmium.
Claim 4
Dependent Claim
12 words
The electrode of claim 1 wherein said copper alloy is pure copper.
Claim 5
Dependent Claim
12 words
The electrode of claim 1 wherein said aluminum alloy is pure aluminum.
Claim 6
Dependent Claim
73 words
The electrode having a core comprising a tube of copper or copper alloy and a filler metal of aluminum or an aluminum alloy inside said tube said core having a coating composed of the fluoride of at least one of the metals chosen from the group consisting of aluminum, sodium, lithium, potassium, barium, calcium, zinc, tin and cadmium; and the chloride of at least one of the metals chosen from the same group.
Claim 7
Dependent Claim
74 words
The electrode having a core comprising a tube of aluminum or an aluminum alloy and a filler metal of copper or a copper alloy inside said tube said core having a coating composed of the fluoride of at least one of the metals chosen from the group consisting of aluminum, sodium, lithium, potassium, barium, calcium, zinc, tin and cadmium; and the chloride of at least one of the metals chosen from the same group.
Claim 8
Dependent Claim
22 words
The electrode of claim 5 wherein said core comprises 2 to 30 percent by volume of copper or a copper base alloy.
Claim 9
Dependent Claim
22 words
The electrode of claim 7 wherein said core comprises 5 to 20 percent by volume of copper or a copper base alloy.
Claim 10
Dependent Claim
22 words
The electrode of claim 6 wherein said core comprises 2 to 30 percent by volume of copper or a copper base alloy.
Claim 11
Dependent Claim
11 words
A coated electrode of claim 1 comprising: A. a core comprising:
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |