Patent US4155247A successfully refreshed from Google Patents.
US4155247A
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US
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Multi-part gas sampler
Assignee: Westinghouse Electric Corp
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Filing: 1977-05-02
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Granted: 1979-05-22
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Expires: 1997-05-02
Abstract
Abstract A dynamoelectric machine with a monitoring system for monitoring a gas stream causes a sample of the gas stream to be collected if its characteristics indicate that a material in the dynamoelectric machine is being thermally degraded. The sampling device will collect a sample of large particles, small particulates, and vapors and gases. The sampling device offers a low resistance to the flow of the gas stream for improved particulate and vapor collection.
Inventors
- 👤 Thomas D. Kaczmarek
- 👤 Richard J. Wengrzyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:54
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/2202; G01N2001/222; G01N2001/2223
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
In a multi-part sampler for use in a gas stream monitoring system of a gas-cooled dynamoelectric machine, the sampler comprising: a first part including a filter means for trapping particles of greater than about 10 microns across, a second part including a particulate collector means for trapping particulates of less than about 10 microns across, and a third part for trapping vapor, said third part comprising a vapor-adsorbing material in a thin layer having a thickness that is a small fraction of its surface layer diameter that is transverse the direction of the gas stream such that the gas flow resistance of the third part is essentially zero.
Claim 2
Dependent Claim
108 words
In a multi-part sampler for use in a gas stream monitoring system of a gas-cooled dynamoelectric machine, the sampler comprising: a first part including a filter means for trapping particles of greater than about 10 microns across, a second part including a particulate collector means for trapping particulates of less than about 10 microns across, and a third part for trapping vapor, said third part comprising a vapor-adsorbing material in a thin layer having a thickness that is a small fraction of its surface layer diameter that is transverse the direction of the gas stream such that the gas flow resistance of the third part is essentially zero.
Claim 3
Dependent Claim
18 words
The multi-part sampler as defined by claim 1 wherein: said vapor adsorbing layer comprises a modified ethylvinylbenzene-divinylbenzene copolymer.
Claim 4
Dependent Claim
54 words
The multi-part sampler as defined in claim 2 wherein: said third part of the sampler comprises, in sequential arrangement, a first annular sealing gasket, a first disc-shaped screen, a first glass fiber disc, said thin layer of vapor-adsorbing material, a second glass fiber disc, a second disc-shaped screen, and a second annular sealing gasket.
References Cited (Backward Citations)
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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) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |