US3118430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water heater
Assignee: ACE TANK AND HEATER CO
•
Filing: 1960-11-25
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Granted: 1964-01-21
•
Expires: 1980-11-25
Abstract
No abstract record available.
Inventors
- 👤 James A Russell
- 👤 Bernard E Mcclanahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:21
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/22; F24H1/40; F24H1/43; F24H1/10; F24H1/12; F24H1/14; F24H1/145; F24H1/16; F24H1/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
217 words
A GAS BURNING WATER HEATER FOR USE IN A WATER HEATING SYSTEM IN WHICH THE WATER IS CONTINUOUSLY CIRCULATED THROUGH THE HEATER COMPRISING A COMBUSTION CHAMBER HAVING UPRIGHT CYLINDRICAL WALLS, A GAS BURNER AT THE BASE OF THE COMBUSTION CHAMBER, A HEATING COIL IN THE FORM OF A HELICALLY WOUND TUBING MEMBER HAVING A PLURALITY OF FINS ENCIRCLING THE MEMBER ALONG SUBSTANTIALLY ITS ENTIRE LENGTH, THE TUBING MEMBER BEING WOUND WITH A REGULARLY DIMINISHING DIAMETER OF EACH TURN BEGINNING AT OPPOSITE ENDS OF THE COIL AND PROCEEDING TOWARD THE CENTER THEREOF, THE FINS OF ADJACENT TURNS OF THE COIL BEING IN CONTACT IN ORDER TO DEFINE THE SPACING THEREBETWEEN, MEANS FOR DIVERTING THE COMBUSTION GASES BETWEEN ADJACENT TURNS OF THE LOWER PORTION OF THE COIL IN ONE DIRECTION AND BETWEEN ADJACENT TURNS OF THE UPPER PORTION OF THE COIL IN AN OPPOSITE DIRECTION COMPRISING A BAFFLE MOUNTED IN THE VICINITY OF THE MIDSECTION OF THE COIL IN ORDER TO BLOCK THE FLOW OF GASES THROUGH THE COIL AND MEANS POSITIONING THE UPPER END TURN OF THE COIL ADJACENT THE COMBUSTION CHAMBER WALLS IN ORDER TO BLOCK THE FLOW OF GASES ALONG THE WALL OUTSIDE THE COIL, AND MEANS FOR COUPLING OPPOSITE ENDS OF THE TUBING MEMBER OF THE COIL TO CORRESPONDING PORTIONS OF THE WATER HEATING SYSTEM.
Claim 2
Dependent Claim
217 words
A GAS BURNING WATER HEATER FOR USE IN A WATER HEATING SYSTEM IN WHICH THE WATER IS CONTINUOUSLY CIRCULATED THROUGH THE HEATER COMPRISING A COMBUSTION CHAMBER HAVING UPRIGHT CYLINDRICAL WALLS, A GAS BURNER AT THE BASE OF THE COMBUSTION CHAMBER, A HEATING COIL IN THE FORM OF A HELICALLY WOUND TUBING MEMBER HAVING A PLURALITY OF FINS ENCIRCLING THE MEMBER ALONG SUBSTANTIALLY ITS ENTIRE LENGTH, THE TUBING MEMBER BEING WOUND WITH A REGULARLY DIMINISHING DIAMETER OF EACH TURN BEGINNING AT OPPOSITE ENDS OF THE COIL AND PROCEEDING TOWARD THE CENTER THEREOF, THE FINS OF ADJACENT TURNS OF THE COIL BEING IN CONTACT IN ORDER TO DEFINE THE SPACING THEREBETWEEN, MEANS FOR DIVERTING THE COMBUSTION GASES BETWEEN ADJACENT TURNS OF THE LOWER PORTION OF THE COIL IN ONE DIRECTION AND BETWEEN ADJACENT TURNS OF THE UPPER PORTION OF THE COIL IN AN OPPOSITE DIRECTION COMPRISING A BAFFLE MOUNTED IN THE VICINITY OF THE MIDSECTION OF THE COIL IN ORDER TO BLOCK THE FLOW OF GASES THROUGH THE COIL AND MEANS POSITIONING THE UPPER END TURN OF THE COIL ADJACENT THE COMBUSTION CHAMBER WALLS IN ORDER TO BLOCK THE FLOW OF GASES ALONG THE WALL OUTSIDE THE COIL, AND MEANS FOR COUPLING OPPOSITE ENDS OF THE TUBING MEMBER OF THE COIL TO CORRESPONDING PORTIONS OF THE WATER HEATING SYSTEM.
References Cited (Backward Citations)
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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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |