US3311092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Type sootblower for cleaning the tubes of furnace walls
Assignee: Combustion Engineering Inc
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Filing: 1965-12-20
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Granted: 1967-03-28
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Expires: 1985-12-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Mcmahon
- 👤 Henry E Burbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:51
CPC Classifications
F; F28; F28G; F28G3/00; F28G3/16; F28G3/166
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN COMBINATION, A FURNACE IN WHICH COMBUSTIBLE MATETER IS BURNED, WALL MEANS ASSOCIATED WITH SAID FURNACE UPON WHICH ASH OR SLAG RESULTING FROM THE COMBUSTION ADHERE, SOOTBLOWER MEANS ASSOCIATED WITH SAID WALL MEANS FOR PERIODICALLY REMOVING DEPOSITS OF ASH OR SLAG FROM THE WALL MEANS, SAID SOOTBLOWER MEANS COMPRISING A TUBE THROUGH WHICH A CLEANING MEDIUM FLOWS, MEANS FOR MOVING THE TUBE FORWARD AND BACKWARD IN A DIRECTION PARALLEL TO THE PLANE OF THE WALL MEANS, HEAD MEANS CONNECTED TO THE TUBE, SAID HEAD MEANS CONTAINING FIRST NOZZLE MEANS POSITIONED SO AS TO DIRECT CLEANING MEDIUM IN A DIRECTION TOWARDS THE WALL MEANS, SAID HEAD MEANS CONTAINING SECOND NOZZLE MEANS POSITIONED SO AS TO DIRECT CLEANING MEDIUM IN A DIRECTION AWAY FROM THE WALL MEANS, THE
Claim 2
Dependent Claim
126 words
IN COMBINATION, A FURNACE IN WHICH COMBUSTIBLE MATETER IS BURNED, WALL MEANS ASSOCIATED WITH SAID FURNACE UPON WHICH ASH OR SLAG RESULTING FROM THE COMBUSTION ADHERE, SOOTBLOWER MEANS ASSOCIATED WITH SAID WALL MEANS FOR PERIODICALLY REMOVING DEPOSITS OF ASH OR SLAG FROM THE WALL MEANS, SAID SOOTBLOWER MEANS COMPRISING A TUBE THROUGH WHICH A CLEANING MEDIUM FLOWS, MEANS FOR MOVING THE TUBE FORWARD AND BACKWARD IN A DIRECTION PARALLEL TO THE PLANE OF THE WALL MEANS, HEAD MEANS CONNECTED TO THE TUBE, SAID HEAD MEANS CONTAINING FIRST NOZZLE MEANS POSITIONED SO AS TO DIRECT CLEANING MEDIUM IN A DIRECTION TOWARDS THE WALL MEANS, SAID HEAD MEANS CONTAINING SECOND NOZZLE MEANS POSITIONED SO AS TO DIRECT CLEANING MEDIUM IN A DIRECTION AWAY FROM THE WALL MEANS, THE
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |