Patent US2616110A successfully refreshed from Google Patents.
Patent US3344459A successfully refreshed from Google Patents.
US3344459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soot blower for steam boilers
Assignee: M Spuhr und Co
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Filing: 1965-04-16
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Granted: 1967-10-03
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Expires: 1985-04-16
Abstract
No abstract record available.
Inventors
- 👤 Jankowski Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:09
CPC Classifications
F; F28; F28G; F28G3/00; F28G3/16; F28G3/166
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A SOOT BLOWER FOR STEAM BOILERS WHEREIN A BLAST PIPE MEMBER HAVING AN ANGULARLY POSITIONED FLUID OUTLET COMMUNICATING WITH AN AXIAL PASSAGEWAY IN THE BLAST PIPE MEMBER IS CONNECTED TO A POWER MEANS WHICH AXIALLY ADVANCES THE OUTLET END OF THE PIPE IN THE FURNACE WHILE ROTATING THE PIPE MEMBER SO THAT THE DISCHARGED FLUID DESCRIBES A SPIRAL PATH ON THE FURNACE WALL, THE IMPROVEMENT COMPRISING: VALVE MEANS CONNECTED TO SAID PIPE MEMBER TO CONTROL THE FLOW OF FLUID GOING TO SAID OUTLET AND CONNECTED TO THE POWER MEANS TO BE ACTUATED THEREBY, TO THROTTLE THE FLUID FLOW WHEN SAID OUTLET IS CLOSEST TO THE WALL, TO HAVE THE FLUID FLOW SUBSTANTIALLY UNTHROTTLED WHEN SAID OUTLET IS FARTHEST FROM THE WALL, AND TO GRADUALLY CHANGE THE THROTTLING BETWEEN THOSE TWO EXTREMES.
Claim 2
Dependent Claim
132 words
IN A SOOT BLOWER FOR STEAM BOILERS WHEREIN A BLAST PIPE MEMBER HAVING AN ANGULARLY POSITIONED FLUID OUTLET COMMUNICATING WITH AN AXIAL PASSAGEWAY IN THE BLAST PIPE MEMBER IS CONNECTED TO A POWER MEANS WHICH AXIALLY ADVANCES THE OUTLET END OF THE PIPE IN THE FURNACE WHILE ROTATING THE PIPE MEMBER SO THAT THE DISCHARGED FLUID DESCRIBES A SPIRAL PATH ON THE FURNACE WALL, THE IMPROVEMENT COMPRISING: VALVE MEANS CONNECTED TO SAID PIPE MEMBER TO CONTROL THE FLOW OF FLUID GOING TO SAID OUTLET AND CONNECTED TO THE POWER MEANS TO BE ACTUATED THEREBY, TO THROTTLE THE FLUID FLOW WHEN SAID OUTLET IS CLOSEST TO THE WALL, TO HAVE THE FLUID FLOW SUBSTANTIALLY UNTHROTTLED WHEN SAID OUTLET IS FARTHEST FROM THE WALL, AND TO GRADUALLY CHANGE THE THROTTLING BETWEEN THOSE TWO EXTREMES.
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |