US3978732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampling system for power generators
Assignee: Westinghouse Electric Corp
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Filing: 1975-08-01
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Granted: 1976-09-07
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Expires: 1995-08-01
Abstract
Abstract A system for automatically monitoring and sampling thermally decomposed products entrained in a gas stream coolant of a power generator. If a gas stream monitoring device detects the presence of thermally decomposed products of a generator in the gas stream coolant, then a single sample is taken on a primary sampler. Should additional samples be necessary, there is provided one or more secondary samplers associated with devices that record the number of samples taken, the total volume of the coolant sampled, and the time the samples were taken. The products collected can be analyzed to determine which material in the power generator was thermally decomposed.
Inventors
- 👤 Thayer L. Dillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:35
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0011; G01N1/00; G01N1/02; G01N1/22
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
151 words
A monitoring and sampling system for a fluid subject to introduction of detectable products of deterioration of the fluid enclosure comprising: a monitor located in the flow path of said fluid and responsive to a predetermined concentration of said detectable products in said fluid; a primary sampler located in a second flow path of said fluid for collecting a single sample by separating said detectable products from said fluid; at least one secondary sampler located in a third flow path parallel to said second flow path for collecting at least one additional sample in same manner as said primary sampler; valve means responsive to said monitor for permitting flow of said fluid through said primary sampler and not through said secondary sampler during a first time period in which said monitor is detecting said products and through said secondary sampler and not through said primary sampler during a subsequent time period.
Claim 2
Dependent Claim
151 words
A monitoring and sampling system for a fluid subject to introduction of detectable products of deterioration of the fluid enclosure comprising: a monitor located in the flow path of said fluid and responsive to a predetermined concentration of said detectable products in said fluid; a primary sampler located in a second flow path of said fluid for collecting a single sample by separating said detectable products from said fluid; at least one secondary sampler located in a third flow path parallel to said second flow path for collecting at least one additional sample in same manner as said primary sampler; valve means responsive to said monitor for permitting flow of said fluid through said primary sampler and not through said secondary sampler during a first time period in which said monitor is detecting said products and through said secondary sampler and not through said primary sampler during a subsequent time period.
Claim 3
Dependent Claim
41 words
The system recited in claim 1 wherein said system further includes: apparatus responsive to a signal from said monitor for recording the number of said samples taken, the total volume of said fluid sampled, and the time said samples were taken.
Claim 4
Dependent Claim
18 words
The system recited in claim 1 wherein said fluid is a gas stream coolant from a dynamoelectric machine.
Claim 5
Dependent Claim
24 words
The system recited in claim 2 wherein said system further includes a flow sensor associated with said samplers for detecting malfunctioning of said valves.
Claim 6
Dependent Claim
16 words
The system recited in claim 2 wherein said apparatus is responsive to flow through said sampler.
Claim 7
Dependent Claim
160 words
A monitoring and sampling system for detection and analysis of thermally decomposed products entrained in a gas stream coolant of a dynamoelectric machine comprising: a monitor located in a first flow path of said coolant and responsive to a predetermined concentration of said thermally decomposed products in said coolant; a primary sampler located in a second flow path parallel to said first flow path of said coolant, for collecting a single sample by separating said detectable products from said coolant; at least one secondary sampler located in a third parallel flow path of said coolant for collecting at least one additional sample in same manner as said primary sampler; valve means responsive to said monitor for permitting flow of said coolant through said primary sampler and not through said secondary sampler during a first time period in which said monitor is detecting said products and through said secondary sampler and not through said primary sampler during a subsequent time period.
Claim 8
Dependent Claim
160 words
A monitoring and sampling system for detection and analysis of thermally decomposed products entrained in a gas stream coolant of a dynamoelectric machine comprising: a monitor located in a first flow path of said coolant and responsive to a predetermined concentration of said thermally decomposed products in said coolant; a primary sampler located in a second flow path parallel to said first flow path of said coolant, for collecting a single sample by separating said detectable products from said coolant; at least one secondary sampler located in a third parallel flow path of said coolant for collecting at least one additional sample in same manner as said primary sampler; valve means responsive to said monitor for permitting flow of said coolant through said primary sampler and not through said secondary sampler during a first time period in which said monitor is detecting said products and through said secondary sampler and not through said primary sampler during a subsequent time period.
Claim 9
Dependent Claim
61 words
The system recited in claim 6 wherein said system further includes: apparatus responsive to a signal from said monitor for recording the number of said samples taken, the total volume of said coolant sampled, and the time said samples were taken; means indicating said primary sampler has taken said single sample, said means being deactivated only by replacing said primary sampler.
Claim 10
Dependent Claim
24 words
The system recited in claim 7 wherein said system further includes a flow switch associated with said samplers for detecting malfunctioning of said valves.
Claim 11
Dependent Claim
16 words
The system recited in claim 7 wherein said apparatus is responsive to flow through said sampler.
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) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |