US4797328A
Expired / Lapsed
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Soft-solder alloy for bonding ceramic articles
Assignee: Evonik Operations GmbH
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Filing: 1987-02-17
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Granted: 1989-01-10
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Expires: 2007-02-17
Abstract
Abstract Soft-solder alloys for connecting ceramic parts without permetallization comprising 86 to 99% lead or tin, 0 to 13% silver and/or copper, 0 to 10% indium and 1 to 10% titanium and/or zirconium.
Inventors
- 👤 Wolfgang Boehm
- 👤 Juergen Hausselt
- 👤 Wolfgang Weise
- 👤 Willi Malikowsik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:39
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/003; C04B37/006; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/26; B23K35/262; B23K35/268; C04B37/02; C04B37/023; C04B37/026; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/126; C04B2237/127; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/40; C04B2237/403; C04B2237/407; C04B2237/50; C04B2237/76; C04B2237/765; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12701; Y10T428/12708; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
49 words
A soft-solder alloy for bonding ceramic parts together for bonding a ceramic part to a metallic part consisting of 86 to 99% lead, 0 to 13% silver, 0 to 10% indium and 1 to 10% of a member selected from the group consisting of titanium, zirconium, and mixtures thereof.
Claim 2
Dependent Claim
49 words
A soft-solder alloy for bonding ceramic parts together for bonding a ceramic part to a metallic part consisting of 86 to 99% lead, 0 to 13% silver, 0 to 10% indium and 1 to 10% of a member selected from the group consisting of titanium, zirconium, and mixtures thereof.
Claim 3
Dependent Claim
22 words
The soft-solder alloy according to claim 1, consisting of 86 to 93% lead, 1 to 6% silver and 1 to 10% titanium.
Claim 4
Dependent Claim
17 words
A ceramic article comprising at least two ceramic surfaces bonded together with the alloy of claim 2.
Claim 5
Dependent Claim
19 words
An article containing at least one ceramic component bonded to a metal component by the alloy of claim 2.
Claim 6
Dependent Claim
22 words
The soft-solder alloy according to claim 1, consisting of 86 to 92% lead, 4 to 10% indium and 1 to 10% titanium.
Claim 7
Dependent Claim
17 words
A ceramic article comprising at least two ceramic surfaces bonded together with the alloy of claim 5.
Claim 8
Dependent Claim
19 words
An article containing at least one ceramic component bonded to a metal component by the alloy of claim 3.
Claim 9
Dependent Claim
18 words
The soft-solder alloy according to claim 1, consisting of 90% to 99% lead and 1 to 10% titanium.
Claim 10
Dependent Claim
17 words
A ceramic article comprising at least two ceramic surfaces bonded together with the alloy of claim 8.
Claim 11
Dependent Claim
19 words
An article containing at least one ceramic component bonded to a metal component by the alloy of claim 5.
Claim 12
Dependent Claim
17 words
A ceramic article comprising at least two ceramic surfaces bonded together with the alloy of claim 1.
Claim 13
Dependent Claim
19 words
An article containing at least one ceramic component bonded to a metal component by the alloy of claim 1.
Claim 14
Dependent Claim
30 words
A ceramic article comprising at least two ceramic surfaces bonded together with a soft-solder alloy consisting of 86 to 95% tin, 1 to 13% silver and 1 to 10% titanium.
Claim 15
Dependent Claim
30 words
A ceramic article comprising at least two ceramic surfaces bonded together with a soft-solder alloy consisting of 86 to 95% tin, 1 to 13% silver and 1 to 10% titanium.
Claim 16
Dependent Claim
31 words
An article containing at least one ceramic component bonded to a metal component by a soft-solder alloy consisting of 86 to 95% tin, 1 to 13% silver 1 to 10% titanium.
Claim 17
Dependent Claim
31 words
An article containing at least one ceramic component bonded to a metal component by a soft-solder alloy consisting of 86 to 95% tin, 1 to 13% silver 1 to 10% titanium.
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) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |