Patent US3230568A successfully refreshed from Google Patents.
US3230568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed soot blower
Assignee: Babcock and Wilcox Co
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Filing: 1964-04-20
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Granted: 1966-01-25
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Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 John R Saltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:06
CPC Classifications
F; F28; F28G; F28G3/00; F28G3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A SOOT BLOWER COMPRISING GUIDE MEANS, A CARRIAGE MOVABLY MOUNTED ON SAID GUIDE MEANS, A LANCE TUBE INCLUDING NOZZLES IN THE FORWARD END PORTION THEREOF ROTATABLY MOUNTED ON SAID CARRIAGE AND MOVABLE THEREBY TO AND FROM A PROJECTED POSITION AND A RETRACTED POSITION, MEANS FOR SUPPLYING A PRESSURIZED BLOWING MEDIUM TO SAID LANCE TUBE FOR DISCHARGE THROUGH SAID NOZZLES, A REVERSIBLE MOTOR, MEANS DRIVINGLY CONNECTED TO SAID MOTOR FOR ROTATION OF SAID LANCE TUBE, IN ONE DIRECTION AND IN AN OPPOSITE DIRECTION IN RESPONSE TO ROTATION, OF SAID MOTOR IN ONE DIRECTION AND IN AN OPPOSITE DIRECTION, FIRST TRANMISSION MEANS ENGAGEABLE WITH SAID MOTOR IN RESPONSE TO ROTATION THEREOF IN ONE DIRECTION FOR MOVING SAID CARRIAGE AND SAID LANCE TUBE TOWARD SAID PROJECTED POSITION, SECOND TRANSMISSION MEANS ENGAGEABLE WITH SAID MOTOR IN RESPONSE TO ROTATION THEREOF IN THE OPPOSITE DIRECTION FOR MOVING SAID CARRIAGE AND SAID LANCE TUBE TOWARD SAID RETRACTED POSITION AT A SPEED OF TRANSLATION DIFFERENT FROM THE SPEED OF TRANSLATION DURING THE PROJECTING TRAVEL PROVIDING A POSITIVE CHANGE IN THE PITCH OF THE HELICAL BLOWING PATTERN DISCHARGED FROM SAID NOZZLES.
Claim 2
Dependent Claim
183 words
A SOOT BLOWER COMPRISING GUIDE MEANS, A CARRIAGE MOVABLY MOUNTED ON SAID GUIDE MEANS, A LANCE TUBE INCLUDING NOZZLES IN THE FORWARD END PORTION THEREOF ROTATABLY MOUNTED ON SAID CARRIAGE AND MOVABLE THEREBY TO AND FROM A PROJECTED POSITION AND A RETRACTED POSITION, MEANS FOR SUPPLYING A PRESSURIZED BLOWING MEDIUM TO SAID LANCE TUBE FOR DISCHARGE THROUGH SAID NOZZLES, A REVERSIBLE MOTOR, MEANS DRIVINGLY CONNECTED TO SAID MOTOR FOR ROTATION OF SAID LANCE TUBE, IN ONE DIRECTION AND IN AN OPPOSITE DIRECTION IN RESPONSE TO ROTATION, OF SAID MOTOR IN ONE DIRECTION AND IN AN OPPOSITE DIRECTION, FIRST TRANMISSION MEANS ENGAGEABLE WITH SAID MOTOR IN RESPONSE TO ROTATION THEREOF IN ONE DIRECTION FOR MOVING SAID CARRIAGE AND SAID LANCE TUBE TOWARD SAID PROJECTED POSITION, SECOND TRANSMISSION MEANS ENGAGEABLE WITH SAID MOTOR IN RESPONSE TO ROTATION THEREOF IN THE OPPOSITE DIRECTION FOR MOVING SAID CARRIAGE AND SAID LANCE TUBE TOWARD SAID RETRACTED POSITION AT A SPEED OF TRANSLATION DIFFERENT FROM THE SPEED OF TRANSLATION DURING THE PROJECTING TRAVEL PROVIDING A POSITIVE CHANGE IN THE PITCH OF THE HELICAL BLOWING PATTERN DISCHARGED FROM SAID NOZZLES.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |