US5064204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analyzer sealing member
Assignee: Outokumpu Oyj
•
Filing: 1991-01-22
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Granted: 1991-11-12
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Expires: 2011-01-22
Abstract
Abstract A sealing member used in a portable or on-line analyzer, to achieve a tight seal between a sample and the analyzer in order to perform the analysis in a desired gas atmosphere. The sealing member is a semi-labyrinth sealing member manufactured of metal, elastic material or ceramic material.
Inventors
- 👤 Marja-Leena Jarvinen
- 👤 Jouko A. K. Koskinen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:38
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/20; G; G01; G01N; G01N21/00; G01N21/62; G01N21/66; G01N21/67; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/943
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
94 words
An improved analyzer comprising a probe body that defines a measurement chamber for receiving a gas, said probe body being surrounded by an external atmosphere, and an aperture to which a sample is presented for analysis in an atmosphere of the gas that is received in the measurement, chamber, and a sealing member for establishing a substantially gas-tight seal between the probe body and the sample which acts to separate the gas in said measurement chamber from the external atmosphere, wherein the improvement resides in that the sealing member is a semi-labyrinth sealing member.
Claim 2
Dependent Claim
94 words
An improved analyzer comprising a probe body that defines a measurement chamber for receiving a gas, said probe body being surrounded by an external atmosphere, and an aperture to which a sample is presented for analysis in an atmosphere of the gas that is received in the measurement, chamber, and a sealing member for establishing a substantially gas-tight seal between the probe body and the sample which acts to separate the gas in said measurement chamber from the external atmosphere, wherein the improvement resides in that the sealing member is a semi-labyrinth sealing member.
Claim 3
Dependent Claim
14 words
An analyzer according to claim 1, wherein the sealing member is made of metal.
Claim 4
Dependent Claim
14 words
An analyzer according to claim 2, wherein the sealing member is made of brass.
Claim 5
Dependent Claim
15 words
An analyzer according to claim 2, wherein the sealing member is made of stainless steel.
Claim 6
Dependent Claim
15 words
An analyzer according to claim 1, wherein the sealing member is made of elastomeric material.
Claim 7
Dependent Claim
14 words
An analyzer according to claim 5, wherein the sealing member is made of rubber.
Claim 8
Dependent Claim
15 words
An analyzer according to claim 1, wherein the sealing member is made of ceramic material.
Claim 9
Dependent Claim
42 words
An analyzer according to claim 1, wherein the semi-labyrinth sealing member defines at least one labyrinth chamber between two adjacent choke points, and the width of each choke point is at least about 50 percent of the width of the labyrinth chamber.
Claim 10
Dependent Claim
98 words
An improved optical emission analyzer comprising a probe body that defines a measurement chamber for receiving a gas, said probe body being surrounded by an external atmosphere, and a aperture to which a sample is presented for optical emission analysis in an atmosphere of the gas that is received in the measurement chamber, and a sealing member for establishing a substantially gas-tight seal between the probe body and the sample which acts to separate the gas in said measurement chamber from the external atmosphere, wherein the improvement resides in that the sealing member is a semi-labyrinth sealing member.
Claim 11
Dependent Claim
98 words
An improved optical emission analyzer comprising a probe body that defines a measurement chamber for receiving a gas, said probe body being surrounded by an external atmosphere, and a aperture to which a sample is presented for optical emission analysis in an atmosphere of the gas that is received in the measurement chamber, and a sealing member for establishing a substantially gas-tight seal between the probe body and the sample which acts to separate the gas in said measurement chamber from the external atmosphere, wherein the improvement resides in that the sealing member is a semi-labyrinth sealing member.
Claim 12
Dependent Claim
96 words
An improved X-ray analyzer comprising a probe body that defines a measurement chamber for receiving a gas, said probe body being surrounded by an external atmosphere, and an aperture to which a sample is presented for X-ray analysis in an atmosphere of the gas that is received in the measurement chamber, and a sealing member for establishing a substantially gas-tight seal between the probe body and the sample which acts to separate the gas in said measurement chamber from the external atmosphere, wherein the improvement resides in that the sealing member is a semi-labyrinth sealing member.
Claim 13
Dependent Claim
96 words
An improved X-ray analyzer comprising a probe body that defines a measurement chamber for receiving a gas, said probe body being surrounded by an external atmosphere, and an aperture to which a sample is presented for X-ray analysis in an atmosphere of the gas that is received in the measurement chamber, and a sealing member for establishing a substantially gas-tight seal between the probe body and the sample which acts to separate the gas in said measurement chamber from the external atmosphere, wherein the improvement resides in that the sealing member is a semi-labyrinth sealing member.
Claim 14
Dependent Claim
90 words
An improved glow discharge lamp comprising a first body that defines a chamber for receiving a gas, said first body being surrounded by an external atmosphere, and an aperture through which a second body is exposed to the gas that is received in the chamber, and a sealing member for establishing a substantially gas-tight seal between the first body and the second body which acts to separate the gas in said chamber from the external atmosphere, wherein the improvement resides in that the sealing member is a semi-labyrinth sealing member.
Claim 15
Dependent Claim
90 words
An improved glow discharge lamp comprising a first body that defines a chamber for receiving a gas, said first body being surrounded by an external atmosphere, and an aperture through which a second body is exposed to the gas that is received in the chamber, and a sealing member for establishing a substantially gas-tight seal between the first body and the second body which acts to separate the gas in said chamber from the external atmosphere, wherein the improvement resides in that the sealing member is a semi-labyrinth sealing member.
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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) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |