US3251346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot water heater
Assignee: Rheem Manufacturing Co
•
Filing: 1961-03-27
•
Granted: 1966-05-17
•
Expires: 1981-03-27
Abstract
No abstract record available.
Inventors
- 👤 Merino Alfonso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:07
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/20; F24H9/2007; F24H9/2035; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86348; Y10T137/86372
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A HOT WATER HEATER COMPRISING A VERTICALLY ELONGATED TANK TO CONTAIN WATER, HEATING MEANS TO HEAT THE WATER IN THE TANK, THERMOSTATIC MEANS RESPONSIVE TO THE TEMPERATURE IN THE LOWER PART OF THE TANK CONTROLLING THE HEATING MEANS, A WATER OUTLET CONNECTION AT THE TOP OF THE TANK, A WATER SUPPLY CONDUIT EXTENDING VERTICALLY DOWNWARD INTO THE TANK AND OPENING IN THE LOWER PORTION OF THE TANK, SAID SUPPLY CONDUIT HAVING A WATER DISCHARGE OPENING THEREIN IN THE UPPER PART OF THE TANK, AND THERMOSTATIC MEANS IN THE UPPER PART OF THE TANK CONTROLLING THE RATE OF WATER DISCHARGE THROUGH THIS WATER DISCHARGE OPENING, SAID THERMOSTATIC MEANS COMPRISING A VANE ELEMENT MOVABLE INTO THE SUPPLY CONDUIT DOWNSTREAM FROM THE WATER DISCHARGE OPENING VARIABLY TO OBSTRUCT THE CONDUIT.
Claim 2
Dependent Claim
127 words
A HOT WATER HEATER COMPRISING A VERTICALLY ELONGATED TANK TO CONTAIN WATER, HEATING MEANS TO HEAT THE WATER IN THE TANK, THERMOSTATIC MEANS RESPONSIVE TO THE TEMPERATURE IN THE LOWER PART OF THE TANK CONTROLLING THE HEATING MEANS, A WATER OUTLET CONNECTION AT THE TOP OF THE TANK, A WATER SUPPLY CONDUIT EXTENDING VERTICALLY DOWNWARD INTO THE TANK AND OPENING IN THE LOWER PORTION OF THE TANK, SAID SUPPLY CONDUIT HAVING A WATER DISCHARGE OPENING THEREIN IN THE UPPER PART OF THE TANK, AND THERMOSTATIC MEANS IN THE UPPER PART OF THE TANK CONTROLLING THE RATE OF WATER DISCHARGE THROUGH THIS WATER DISCHARGE OPENING, SAID THERMOSTATIC MEANS COMPRISING A VANE ELEMENT MOVABLE INTO THE SUPPLY CONDUIT DOWNSTREAM FROM THE WATER DISCHARGE OPENING VARIABLY TO OBSTRUCT THE CONDUIT.
References Cited (Backward Citations)
US1681377A
Cited
GB282075A
Cited
US2115601A
Cited
US2814279A
Cited
US2504092A
Cited
US2592863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |