US4342234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for extracting a hot gas sample from a chamber and for feeding the sample to an analyzer
Assignee: Individual
•
Filing: 1980-12-15
•
Granted: 1982-08-03
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Expires: 2000-12-15
Abstract
Abstract An apparatus for sampling hot gas from a chamber includes a sample probe surrounded by a heating jacket, leading directly to a heated analyzer. The heating of the analyzer and the probe is separately controlled. A filter is provided within the probe.
Inventors
- 👤 Tibor Bernath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:48
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/2247; G01N1/2258; G01N2001/2261; G01N2001/2285
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
216 words
Apparatus for extracting a hot gas sample from a chamber and for feeding the sample to an analyzer, in particular for monitoring the content of organic solvents or similar constituents in the air in the chamber, which such solvents or similar constituents represent an explosion hazard or are otherwise harmful when they reach a specific concentration, such apparatus comprising a sampling probe which can be introduced into the chamber through an opening in the chamber wall and is connected outside the chamber with the analyzer, which has a gas filter and a detector, there being a suction pump to draw off the sample through the probe to the analyzer, as well as a heating jacket upstream of the analyzer, wherein the analyzer (2) is located directly at the opening (4) in the chamber wall (5, 6) and is directly connected to the sampling probe (8), the heating jacket (9) surrounds the sampling probe (8) and extends beyond the chamber wall (5, 6) through the chamber-wall opening (4) up to the analyzer (2), the analyzer (2) has a heating apparatus (27) separate from the heating jacket (9) of the sampling probe (8) and the heating jacket (9) and heating apparatus (27) each has its own temperature sensor (14 and 32, respectively) for separate heating and temperature control.
Claim 2
Dependent Claim
216 words
Apparatus for extracting a hot gas sample from a chamber and for feeding the sample to an analyzer, in particular for monitoring the content of organic solvents or similar constituents in the air in the chamber, which such solvents or similar constituents represent an explosion hazard or are otherwise harmful when they reach a specific concentration, such apparatus comprising a sampling probe which can be introduced into the chamber through an opening in the chamber wall and is connected outside the chamber with the analyzer, which has a gas filter and a detector, there being a suction pump to draw off the sample through the probe to the analyzer, as well as a heating jacket upstream of the analyzer, wherein the analyzer (2) is located directly at the opening (4) in the chamber wall (5, 6) and is directly connected to the sampling probe (8), the heating jacket (9) surrounds the sampling probe (8) and extends beyond the chamber wall (5, 6) through the chamber-wall opening (4) up to the analyzer (2), the analyzer (2) has a heating apparatus (27) separate from the heating jacket (9) of the sampling probe (8) and the heating jacket (9) and heating apparatus (27) each has its own temperature sensor (14 and 32, respectively) for separate heating and temperature control.
Claim 3
Dependent Claim
42 words
Apparatus as in claim 1, wherein the heating apparatus (27) of the analyzer (2) is provided with an insulating jacket (34), which holds the adjacent end of a probe insulating jacket (17) surrounding the heating jacket (9) of the sampling probe (8).
Claim 4
Dependent Claim
62 words
Apparatus as in claim 1 or 2, wherein the heating jacket (9) of the sampling probe (8) and the heating apparatus (27) of the analyzer (2) consist in each case of a metal sleeve with axial bores (10, 13 and 28, 31 respectively), into which electrical heating rods (11 and 29, respectively) and the temperature sensors (14 and 32, respectively) are inserted.
Claim 5
Dependent Claim
42 words
Apparatus as in claim 1 or 2, wherein the heating jacket (9) for the sampling probe (8) features a radial attachment plate (18) at its end adjacent to the analyzer (2), said attachment plate (18) being detachably connected with the analyzer (2).
Claim 6
Dependent Claim
72 words
Apparatus as in claim 1 or 2, wherein a mug-shaped casing (3) is provided to accommodate the analyzer (2), the bottom (44) of which casing (3) has a central hole (45), through which the sampling probe (8) with its surrounding jacket (9, 17) is passed when the analyzer (2) is fitted axially into the casing (3), which also features a projecting flange (46) for attaching it to the chamber wall (5, 6).
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) | 1985-08-02 | 1986-02-01 | 1986-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-02 | 1990-02-01 | 1990-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-02 | 1994-02-01 | 1994-08-03 | $7700.00 | Window Closed / Lapsed |