US3592562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Takeoff for hot dusty gases
Assignee: Individual
•
Filing: 1969-11-12
•
Granted: 1971-07-13
•
Expires: 1989-11-12
Abstract
Abstract A takeoff using injector action to aspirate dirty furnace gas from a sample zone and force it to an analyzer. Part of the water used for injector action is used to scavenge and rinse the walls of the gas takeoff passageway, with centrifugal force of water rotation holding the major cross-sectional area of the passageway open. Washing stream is biased to move counter to gas aspiration and leaves the device as a conical water curtain opening toward the furnace.
Inventors
- 👤 Heinz Spliethoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:15
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/2247; G01N1/2258; G01N1/24; G01N2001/242
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
30 words
In a device as claimed in claim 1, said closure means obstructing the flow of part of the water flowing toward the furnace-side end to give the jet reverse motion.
Claim 2
Dependent Claim
58 words
In a device as claimed in claim 1, said side bore joining the cylindrical gas passageway essentially tangentially so that water entering the passageway will tend to become rotated about the axis of the passageway and become centrifugally forced against the walls of the passageway and leave the more central zone open for said entrance of the gas.
Claim 3
Dependent Claim
55 words
In a device as claimed in claim 3, the side bore being inclined toward the furnace-side end at the interior of the gas passageway so that water swirling at the walls thereof will be biased to move counter to the direction of aspiration of the gas and leave the closure means as said conical curtain.
Claim 4
Dependent Claim
76 words
In a device as claimed in claim 4, said closure means being a plug closing the outer tube and provided with an inner extension of reduced diameter projecting into the inner tube, the gas passageway being an axial bore through the plug extension, the extension being provided with a lateral cutaway forming a wall thereon which with the inner wall of the inner tube constitute said walled means, and said side bore being through the extension.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |