Patent US4289402A successfully refreshed from Google Patents.
US4289402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark chamber for a vacuum emission spectrometer
Assignee: Schubert und Salzer GmbH
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Filing: 1979-08-03
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Granted: 1981-09-15
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Expires: 1999-08-03
Abstract
Abstract A spark chamber for a vacuum emission spectrometer with a housing, which accommodates an anode, as well as a sample table plate carried by the housing, on which the piece of material being inspected and making up the cathode is placed and which carries a spark centering plate. The sample plate (5) includes a molded laminate material, whose sides (501) facing the anode (23) has a polished surface.
Inventors
- 👤 Ehrhardt Teubner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:28
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/66; G01N21/67
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
74 words
A spark chamber for a vacuum emission spectrometer with a housing, which accommodates an anode, as well as a sample table plate carried by the housing, on which the piece of material being inspected and making up the cathode is placed and which carries a spark centering plate, distinguished by the fact that the sample table plate (5) includes a moulded laminated material, whose side (501) facing the anode (23) has a polished surface.
Claim 2
Dependent Claim
74 words
A spark chamber for a vacuum emission spectrometer with a housing, which accommodates an anode, as well as a sample table plate carried by the housing, on which the piece of material being inspected and making up the cathode is placed and which carries a spark centering plate, distinguished by the fact that the sample table plate (5) includes a moulded laminated material, whose side (501) facing the anode (23) has a polished surface.
Claim 3
Dependent Claim
74 words
A spark chamber for a vacuum emission spectrometer with a housing, which accommodates an anode, as well as a sample table plate carried by the housing, on which the piece of material being inspected and making up the cathode is placed and which carries a spark centering plate, distinguished by the fact that the sample table plate (5) includes a heat stabilizing plastic, whose side (501) facing the anode (23) has a polished surface.
Claim 4
Dependent Claim
74 words
A spark chamber for a vacuum emission spectrometer with a housing, which accommodates an anode, as well as a sample table plate carried by the housing, on which the piece of material being inspected and making up the cathode is placed and which carries a spark centering plate, distinguished by the fact that the sample table plate (5) includes a heat stabilizing plastic, whose side (501) facing the anode (23) has a polished surface.
Claim 5
Dependent Claim
43 words
A spark chamber according to claim 1 or 2, distinguished by the fact that the housing (20) as well as the sample table plate (5) are made of moulded laminated material or heat stabilizing plastic and have a polished surface on their inside.
Claim 6
Dependent Claim
30 words
A spark chamber according to claim 3, distinguished by the fact that the anode is carried by a holding plate (230) bolted (parts 203 and 231) to the housing (20).
Claim 7
Dependent Claim
18 words
A spark chamber according to claim 1 further comprising: said molded laminated material being a resin bonded paper.
Claim 8
Dependent Claim
22 words
A spark chamber according to claim 1 further comprising: a heat dissipator being located between said piece of material and said cathod.
Claim 9
Dependent Claim
17 words
A spark chamber according to claim 6 further comprising: said heat dissipator being an exchangeable copper block.
References Cited (Backward Citations)
US3711201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-14 | 1985-03-16 | 1985-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-14 | 1989-03-16 | 1989-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-14 | 1993-03-16 | 1993-09-15 | $7700.00 | Window Closed / Lapsed |