Patent US4726678A successfully refreshed from Google Patents.
US4726678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receptacle for flameless atomic absorption spectroscopy
Assignee: RINGDORFF-WERKE GmbH
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Filing: 1986-09-26
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Granted: 1988-02-23
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Expires: 2006-09-26
Abstract
Abstract Unitary receptacle and contact pieces for vaporization and spectroscopic analysis of an analysis sample. Receptacle means are incorporated in the receptacle reception of the sample. The contact pieces are formed integrally with the receptacle for connection of the reception means to an electrical supply unit to enable the sample to be heated. The reception means may constitute a bore in the receptacle, a cup for containing an analysis sample engageable in the bore and additional contact pieces formed integrally with the cup for connection of the cup with a current supply unit therefor.
Inventors
- 👤 Bruno Hutsch
- 👤 Wolfgang Frech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:48
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/71; G01N21/74
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
49 words
Unitary receptacle and contact pieces comprising a receptacle incorporating means for the reception of an analysis sample for vaporization and spectroscopic analysis therein, and contact pieces formed integrally with the receptacle for connection of the reception means to an electrical supply unit to enable the sample to be heated.
Claim 2
Dependent Claim
49 words
Unitary receptacle and contact pieces comprising a receptacle incorporating means for the reception of an analysis sample for vaporization and spectroscopic analysis therein, and contact pieces formed integrally with the receptacle for connection of the reception means to an electrical supply unit to enable the sample to be heated.
Claim 3
Dependent Claim
30 words
Unitary receptacle and contact pieces according to claim 1, wherein the receptacle is a tubularly extended receptacle, and wherein the contact pieces extend over the whole length of the tube.
Claim 4
Dependent Claim
23 words
Unitary receptacle and contact pieces according to claim 1, wherein the contact pieces are provided with the apertures which reduce the cross-section thereof.
Claim 5
Dependent Claim
23 words
Unitary receptacle and contact pieces according to claim 2, wherein the contact pieces are provided with the apertures which reduce the cross-section thereof.
Claim 6
Dependent Claim
23 words
Unitary receptacle and contact pieces according to claim 4, wherein the apertures are a plurality of slots which extend parallel to the tube.
Claim 7
Dependent Claim
50 words
Unitary receptacle and contact pieces according to claim 1, wherein the reception means comprises a bore in the receptacle, a cup for containing an analysis sample engageable in the bore and additional contact pieces formed integrally with the cup for connection of the cup with a current supply unit therefor.
Claim 8
Dependent Claim
22 words
Unitary receptacle and contact pieces according to claim 1, wherein the unitary receptacle and contact pieces are formed of carbon or graphite.
Claim 9
Dependent Claim
33 words
Unitary receptacle and contact pieces according to claim 6, wherein the unitary receptacle and contact pieces as well as the cup and its integrally formed contact pieces are formed of carbon or graphite.
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) | 1991-02-22 | 1991-08-24 | 1992-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-22 | 1995-08-24 | 1996-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-22 | 1999-08-24 | 2000-02-23 | $7700.00 | Window Closed / Lapsed |