US3207130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous flow heater
Assignee: Individual
•
Filing: 1962-11-28
•
Granted: 1965-09-21
•
Expires: 1982-11-28
Abstract
No abstract record available.
Inventors
- 👤 Viessmann Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 00:47
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/10; F24H1/12; F24H1/14; F22; F22B; F22B1/00; F22B1/02; F22B1/08; F22D; F22D1/00; F22D1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A HEATING APPARATUS FOR PRODUCING HOT WATER COMPRISING, IN COMBINATION: (A) A PLURALITY OF STRAIGHT TUBE MEMBERS HAVING RESPECTIVE FIRST AND SECOND END PORTIONS; (B) A PLURALITY OF COUPLING MEMBERS FORMED WITH A SUBSTANTIALLY CLOSED CAVITY THEREIN, (1) EACH COUPLING MEMBER CONNECTING THE FIRST END PORTONS OF TWO TUBE MEMBERS IN COMMUNICATION WITH SAID CAVITY SO AS TO FORM THEREWITH A V-SHAPED CONDUIT, AND (2) EACH TUBE MEMBER OF SAID CONDUIT DEFINING A STRAIGHT PATH, THE PATH OF EACH TUBE MEMBER COMMUNICATING WITH SAID CAVITY INTERSECTING THE PATH OF ANOTHER ONE OF SAID TUBE MEMBERS IN SAID CAVITY; (C) MOUNTING PLATE MEANS FOR SECURING SAID TUBE MEMBERS IN A FURNANCE; (D) CONNECTING MEANS CONNECTING RESPECTIVE SECOND END PORTIONS OF TWO TUBE MEMBERS OF RESPECTIVE VSHAPED CONDUITS FOR FLOW OF FLUID THROUGH SAID CONDUITS IN SERIES; AND (E) REMOVABLE ACCESS MEANS ON SAID SECOND END PORITIONS FOR GIVING ACCESS TO EACH OF SAID STRAIGHT PATHS IN A STRAIGHT LINE.
Claim 2
Dependent Claim
158 words
A HEATING APPARATUS FOR PRODUCING HOT WATER COMPRISING, IN COMBINATION: (A) A PLURALITY OF STRAIGHT TUBE MEMBERS HAVING RESPECTIVE FIRST AND SECOND END PORTIONS; (B) A PLURALITY OF COUPLING MEMBERS FORMED WITH A SUBSTANTIALLY CLOSED CAVITY THEREIN, (1) EACH COUPLING MEMBER CONNECTING THE FIRST END PORTONS OF TWO TUBE MEMBERS IN COMMUNICATION WITH SAID CAVITY SO AS TO FORM THEREWITH A V-SHAPED CONDUIT, AND (2) EACH TUBE MEMBER OF SAID CONDUIT DEFINING A STRAIGHT PATH, THE PATH OF EACH TUBE MEMBER COMMUNICATING WITH SAID CAVITY INTERSECTING THE PATH OF ANOTHER ONE OF SAID TUBE MEMBERS IN SAID CAVITY; (C) MOUNTING PLATE MEANS FOR SECURING SAID TUBE MEMBERS IN A FURNANCE; (D) CONNECTING MEANS CONNECTING RESPECTIVE SECOND END PORTIONS OF TWO TUBE MEMBERS OF RESPECTIVE VSHAPED CONDUITS FOR FLOW OF FLUID THROUGH SAID CONDUITS IN SERIES; AND (E) REMOVABLE ACCESS MEANS ON SAID SECOND END PORITIONS FOR GIVING ACCESS TO EACH OF SAID STRAIGHT PATHS IN A STRAIGHT LINE.
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |