US3620645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Getter device
Assignee: SAES Getters SpA
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Filing: 1970-05-01
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Granted: 1971-11-16
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Expires: 1990-05-01
Abstract
Abstract A getter device comprising a carrier having on at least one of its faces particles of a nonvaporative getter metal characterized in that the particles of the getter metal are partially embedded in the carrier to give a highly efficient getter device.
Inventors
- 👤 Paolo Della Porta
- 👤 Tiziano A Giorgi
- 👤 Bruno Kindl
- 👤 Mario Zucchinelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:16
CPC Classifications
H; H01; H01J; H01J7/00; H01J7/14; H01J7/18; H01J7/183; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12451; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12812; Y10T428/12861; Y10T428/12951; Y10T428/12972; Y10T428/12979; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24479; Y10T428/24496; Y10T428/24942; Y10T428/24983
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
48 words
A getter device comprising a carrier having in correspondence with at least one of its faces, a thin layer of particles of a hard, nonvaporative getter metal characterized in that the carrier material is softer than the getter metal whose particles are partially embedded in the carrier material.
Claim 2
Dependent Claim
48 words
A getter device comprising a carrier having in correspondence with at least one of its faces, a thin layer of particles of a hard, nonvaporative getter metal characterized in that the carrier material is softer than the getter metal whose particles are partially embedded in the carrier material.
Claim 3
Dependent Claim
19 words
The getter device of claim 1 wheRein the particles form a layer, the upper surface of which is nonplanar.
Claim 4
Dependent Claim
50 words
A getter device which when heated in a vacuum sorbs gases said device comprising: A. a carrier, B. a layer of finely divided particles of a nonvaporative getter material partially embedded in at least one surface of said carrier and cold welded to at least one surface of said carrier.
Claim 5
Dependent Claim
50 words
A getter device which when heated in a vacuum sorbs gases said device comprising: A. a carrier, B. a layer of finely divided particles of a nonvaporative getter material partially embedded in at least one surface of said carrier and cold welded to at least one surface of said carrier.
Claim 6
Dependent Claim
60 words
A getter device which when heated in a vacuum sorbs gases, said device comprising: A. a metallic carrier, B. a layer of finely divided particles of a nonvaporative getter metal which are harder than said metallic carrier and are partially embedded in at least one surface of said carrier and cold welded to at least one surface of said carrier.
Claim 7
Dependent Claim
60 words
A getter device which when heated in a vacuum sorbs gases, said device comprising: A. a metallic carrier, B. a layer of finely divided particles of a nonvaporative getter metal which are harder than said metallic carrier and are partially embedded in at least one surface of said carrier and cold welded to at least one surface of said carrier.
Claim 8
Dependent Claim
69 words
A getter device which when heated in a vacuum sorbs gases, said device comprising: A. a metallic carrier, B. a layer of finely divided particles of a nonvaporative getter metal which are harder than said metallic carrier and are partically embedded in at least one surface of said carrier and cold welded to at least one surface of said carrier, and wherein said layer has a nonplanar upper surface.
Claim 9
Dependent Claim
69 words
A getter device which when heated in a vacuum sorbs gases, said device comprising: A. a metallic carrier, B. a layer of finely divided particles of a nonvaporative getter metal which are harder than said metallic carrier and are partically embedded in at least one surface of said carrier and cold welded to at least one surface of said carrier, and wherein said layer has a nonplanar upper surface.
Claim 10
Dependent Claim
44 words
A getter device comprising: A. a metallic carrier, B. a layer of finely divided particles of a nonvaporative getter metal selected from the group consisting of zirconium, titanium, thorium, vanadium, tantalum, niobium, tungsten, mixtures thereof and alloys thereof with one another or with aluminum.
Claim 11
Dependent Claim
44 words
A getter device comprising: A. a metallic carrier, B. a layer of finely divided particles of a nonvaporative getter metal selected from the group consisting of zirconium, titanium, thorium, vanadium, tantalum, niobium, tungsten, mixtures thereof and alloys thereof with one another or with aluminum.
Claim 12
Dependent Claim
15 words
The getter device of claim 6 wherein the nonvaporative getter metal is a zirconium-aluminum alloy.
Claim 13
Dependent Claim
20 words
A getter device comprising: A. a stainless steel carrier, B. particles of a zirconium getter alloy embedded in the carrier.
Claim 14
Dependent Claim
20 words
A getter device comprising: A. a stainless steel carrier, B. particles of a zirconium getter alloy embedded in the carrier.
Claim 15
Dependent Claim
68 words
A getter device comprising: A. a metallic carrier, B. an even layer of particles of a nonvaporative getter metal on the carrier, the layer having a thickness of about four times the average diameter of the particles, the particles being held together by local welds predominantly in a direction orthogonal to the surface of the carrier, the particles contacting the surface of the carrier being partially embedded therein.
Claim 16
Dependent Claim
68 words
A getter device comprising: A. a metallic carrier, B. an even layer of particles of a nonvaporative getter metal on the carrier, the layer having a thickness of about four times the average diameter of the particles, the particles being held together by local welds predominantly in a direction orthogonal to the surface of the carrier, the particles contacting the surface of the carrier being partially embedded therein.
Claim 17
Dependent Claim
85 words
A getter device comprising: A. a metallic carrier, B. an even layer of particles of a nonvaporative getter metal on the carrier, the layer having a thickness of about four times the average diameter of the particles, the particles being held together by local welds predominantly in a direction orthogonal to the surface of the carrier, the particles contacting the surface of the carrier being partially embedded therein, the ratio of surface area of getter metal to weight of getter metal exceeding about 2 cm.2/mg.
Claim 18
Dependent Claim
85 words
A getter device comprising: A. a metallic carrier, B. an even layer of particles of a nonvaporative getter metal on the carrier, the layer having a thickness of about four times the average diameter of the particles, the particles being held together by local welds predominantly in a direction orthogonal to the surface of the carrier, the particles contacting the surface of the carrier being partially embedded therein, the ratio of surface area of getter metal to weight of getter metal exceeding about 2 cm.2/mg.
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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) | 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 |