US3060064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cleaning tube bundles
Assignee: Dow Chemical Co
•
Filing: 1959-11-18
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Granted: 1962-10-23
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Expires: 1979-11-18
Abstract
No abstract record available.
Inventors
- 👤 Warren M Zingg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:57
CPC Classifications
F; F28; F28G; F28G3/00; F28G3/16; F28G3/166; C; C23; C23G; C23G3/00; C23G3/04; F28G13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
THE METHOD OF CLEANING UNWANTED CHARRABLE DEPOSITS FROM A TUBE BUNDLE WHICH COMPRISES CIRCULATING A COOLANT THROUGH SAID TUBE BUNDLE, DIRECTING A FLAME SEQUENTIALLY ALONG THE TUBE BUNDLE TO BE CLEANED AND AT LEAST PARTIALLY CHARRING SAID DEPOSITS AS THE FLAME IMPINGES THEREON, AND THEN DIRECTING AT LEAST ONE JET STREAM OF LIQUID AT HIGH PRESSURE ONTO SAID AT LEAST PARTIALLY CHARRED DEPOSITS ON SAID BUNDLE ADJACENT TO THE POINT ON THE TUBE BUNDLE WHERE THE FLAME WAS DIRECTED.
Claim 2
Independent Claim
79 words
THE METHOD OF CLEANING UNWANTED CHARRABLE DEPOSITS FROM A TUBE BUNDLE WHICH COMPRISES CIRCULATING A COOLANT THROUGH SAID TUBE BUNDLE, DIRECTING A FLAME SEQUENTIALLY ALONG THE TUBE BUNDLE TO BE CLEANED AND AT LEAST PARTIALLY CHARRING SAID DEPOSITS AS THE FLAME IMPINGES THEREON, AND THEN DIRECTING AT LEAST ONE JET STREAM OF LIQUID AT HIGH PRESSURE ONTO SAID AT LEAST PARTIALLY CHARRED DEPOSITS ON SAID BUNDLE ADJACENT TO THE POINT ON THE TUBE BUNDLE WHERE THE FLAME WAS DIRECTED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |