Patent US2468338A successfully refreshed from Google Patents.
US4060001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampling probe and method of use
Assignee: Phillips Petroleum Co
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Filing: 1976-08-27
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Granted: 1977-11-29
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Expires: 1996-08-27
Abstract
Abstract A sampling probe and method for its use in which a flow amplifier utilizing the Coanda wall attachment effect has attached to its inlet an isokinetic sampling nozzle and has attached to its outlet a straight tube so that upon passing a flow of compressed, motive gas through the throttling inlet of the flow amplifier, a flow of sample gas is induced from a gaseous external environment of the probe and the motive gas provides a barrier between the sample gas and the wall of the flow amplifier and attached tube. In an embodiment of the invention the motive gas is a dry gas at elevated temperature which reduces moisture content of samples of moist gas environments.
Inventors
- 👤 Paul H. Archerd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:27
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/2247; G01N1/2258; G01N1/24; G01N2001/225; G01N2001/2261; G01N2001/242; G01N2001/244
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
41 words
A sampling probe comprising: a. a flow amplifier utilizing the Coanda wall attachment effect; and b. attached to the inlet of said flow amplifier a nozzle adapted to induce an isokinetic flow of sample at the operating flow of said amplifier.
Claim 2
Dependent Claim
41 words
A sampling probe comprising: a. a flow amplifier utilizing the Coanda wall attachment effect; and b. attached to the inlet of said flow amplifier a nozzle adapted to induce an isokinetic flow of sample at the operating flow of said amplifier.
Claim 3
Dependent Claim
19 words
A sampling probe of claim 1 further comprising a straight tube attached to the outlet of said flow amplifier.
Claim 4
Dependent Claim
28 words
A sampling probe of claim 2 for sampling a moist, gaseous environment in which said straight tube is of a length sufficient to allow drying of sampled material.
Claim 5
Dependent Claim
22 words
In combination a sampling probe of claim 3 having the flow amplifier connected by transfer means to a source of motive gas.
Claim 6
Independent Claim
62 words
A method for sampling a gaseous environment comprising passing a flow of compressed gas through the throttling inlet of a flow amplifier utilizing the Coanda wall attachment effect thereby inducing flow of sample gas from said gaseous environment through an isokinetic nozzle attached to the inlet of the flow amplifier, through said amplifier and into conveying means attached to the amplifier outlet.
Claim 7
Independent Claim
62 words
A method for sampling a gaseous environment comprising passing a flow of compressed gas through the throttling inlet of a flow amplifier utilizing the Coanda wall attachment effect thereby inducing flow of sample gas from said gaseous environment through an isokinetic nozzle attached to the inlet of the flow amplifier, through said amplifier and into conveying means attached to the amplifier outlet.
Claim 8
Dependent Claim
27 words
A method of claim 5 wherein said isokinetic nozzle is of dimensions to provide an isokinetic flow of sample gas at the operating flow of said amplifier.
Claim 9
Dependent Claim
18 words
A method of claim 6 wherein said conveying means comprises a straight tube attached to said amplifier outlet.
Claim 10
Dependent Claim
34 words
A method for sampling a moist, gaseous environment comprising the method of claim 6 wherein said compressed gas is at an elevated temperature and dry thereby reducing the moisture content of contacted sample gas.
Claim 11
Dependent Claim
38 words
A method for sampling liquid droplets of crystallizable chemical compounds in a moist, gaseous environment comprising the method of claim 6 wherein said straight tube is of length sufficient to produce dry particulate matter in said sample gas.
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) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |