US4008620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampler for analyzers
Assignee: Hitachi Ltd
•
Filing: 1975-05-05
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Granted: 1977-02-22
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Expires: 1995-05-05
Abstract
Abstract An analyzer, and more specifically a sampler for exhaust-gas monitoring and analyzing apparatus, comprising a pipe for introducing clean air into the sampler, a sampling tube for drawing in gasses by suction, and an extracting tube for conducting the gas sample to an analyzer. The sampler is designed so that the admission of clean air thereto creates a sufficient suction effect for drawing in the gasses to be sampled.
Inventors
- 👤 Kiyoshi Narato
- 👤 Keizo Ootsuka
- 👤 Syoichi Sawahata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/2247; G01N1/2258; G01N1/24; G01N1/2202; G01N2001/222; G01N2001/2223; G01N2001/242
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
132 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be interchangeable, a sampling tube for drawing in a sample for analysis, an extracting tube for conducting the sample after dilution to an analyzing instrument, said sample being admitted to the sampler as a result of the suction created by the clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises a suction pipe in which the free end of the extracting tube for conducting the sample to the analyzer is extended to an intermediate point of the pipe, and a sampling nozzle attached to the free end of the suction pipe.
Claim 2
Dependent Claim
132 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be interchangeable, a sampling tube for drawing in a sample for analysis, an extracting tube for conducting the sample after dilution to an analyzing instrument, said sample being admitted to the sampler as a result of the suction created by the clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises a suction pipe in which the free end of the extracting tube for conducting the sample to the analyzer is extended to an intermediate point of the pipe, and a sampling nozzle attached to the free end of the suction pipe.
Claim 3
Dependent Claim
97 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be interchangeable, a sampling tube for drawing in a sample for analysis, an extracting tube for conducting the sample after dilution to an analyzing instrument, said sample being admitted to the sampler as a result of the suction created by the clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises means for purging the sampling tube.
Claim 4
Dependent Claim
97 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be interchangeable, a sampling tube for drawing in a sample for analysis, an extracting tube for conducting the sample after dilution to an analyzing instrument, said sample being admitted to the sampler as a result of the suction created by the clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises means for purging the sampling tube.
Claim 5
Dependent Claim
131 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be interchangeable, a sampling tube for drawing in a sample for analysis, an extracting tube for conducting the sample to an analyzing instrument, said sample being admitted to the sampler as a result of an injection effect produced by clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises a suction pipe in which the free end of the extracting tube for conducting the diluted sample to the analyzer is extended to an intermediate point of the pipe, and a sampling nozzle attached to the free end of the suction pipe.
Claim 6
Dependent Claim
131 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be interchangeable, a sampling tube for drawing in a sample for analysis, an extracting tube for conducting the sample to an analyzing instrument, said sample being admitted to the sampler as a result of an injection effect produced by clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises a suction pipe in which the free end of the extracting tube for conducting the diluted sample to the analyzer is extended to an intermediate point of the pipe, and a sampling nozzle attached to the free end of the suction pipe.
Claim 7
Dependent Claim
95 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be interchangeable, a sampling tube for drawing in a sample for analysis, an extracting tube for conducting the sample to an analyzing instrument, said sample being admitted to the sampler as a result of an injection effect produced by clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises means for purging the sampling tube.
Claim 8
Dependent Claim
95 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be interchangeable, a sampling tube for drawing in a sample for analysis, an extracting tube for conducting the sample to an analyzing instrument, said sample being admitted to the sampler as a result of an injection effect produced by clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises means for purging the sampling tube.
Claim 9
Dependent Claim
133 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be interchangeable, a sampling tube for drawing in a sample for analysis, and an extracting tube for conducting the sample to an analyzing instrument, said sample being extracted into the sampler as a result of an ejection effect produced by the clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises a suction pipe in which the free end of the extracting tube for conducting the diluted sample to the analyzer is extended to an intermediate point of the pipe, and a sampling nozzle attached to the free end of the suction pipe.
Claim 10
Dependent Claim
133 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be interchangeable, a sampling tube for drawing in a sample for analysis, and an extracting tube for conducting the sample to an analyzing instrument, said sample being extracted into the sampler as a result of an ejection effect produced by the clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises a suction pipe in which the free end of the extracting tube for conducting the diluted sample to the analyzer is extended to an intermediate point of the pipe, and a sampling nozzle attached to the free end of the suction pipe.
Claim 11
Dependent Claim
97 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be inerchangeable, a sampling tube for drawing in a sample for analysis, and an extracting tube for conducting the sample to an analyzing instrument, said sample being extracted into the sampler as a result of an ejection effect produced by the clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises means for purging the sampling tube.
Claim 12
Dependent Claim
97 words
A sampler for analyzers comprising a clean-gas supply pipe provided with a nozzle tip which may or may not be inerchangeable, a sampling tube for drawing in a sample for analysis, and an extracting tube for conducting the sample to an analyzing instrument, said sample being extracted into the sampler as a result of an ejection effect produced by the clean gas during its introduction into the same vessel, said sample then being diluted with the clean gas and led to the analyzer via the extracting tube, and which also comprises means for purging the sampling tube.
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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) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |