US3645327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot water tank heater
Assignee: Individual
•
Filing: 1970-05-01
•
Granted: 1972-02-29
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Expires: 1990-05-01
Abstract
Abstract A radiator, a tank, a cylindrical passageway running through the tank, a pump for pumping heated radiator water through the cylindrical passageway, and a pump for pumping the heated water in the tank about the cylindrical passageway out of the tank for use.
Inventors
- 👤 George S Henley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:20
CPC Classifications
B; B60; B60N; B60N3/00; B60N3/16; F; F24; F24D; F24D17/00; F24D17/0005; F24D17/001; Y; Y02; Y02B; Y02B30/00; Y02B30/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
A mobile fresh water heater, comprising a generally horizontal fresh water storage tank, a generally horizontal cylindrical passageway mounted at the center of the tank along the longitudinal axis of the tank between opposite ends of the tank in a manner so that water in the tank is sealed off from the inside of the passageway, the passageway being part of an internal combustion engine cooling system water line, the flow of engine heated water through the passageway causing the fresh water in the tank to heat up, a fill cap at the top of the tank for pouring in fresh water, a presSure gauge and release valve with an air stem extending from the top of the tank, a water pipe extending downward from the bottom of the tank, and a pump connected to the pipe for pumping the heated fresh water to the area where the water is to be used for washing and consumption, said passageway having a diameter larger than that of the water line located outside the tank for increasing the area of heat exchange with said passageway positioned to receive the flow of water directly after the water leaves the engine of the mobile vehicle.
Claim 2
Dependent Claim
201 words
A mobile fresh water heater, comprising a generally horizontal fresh water storage tank, a generally horizontal cylindrical passageway mounted at the center of the tank along the longitudinal axis of the tank between opposite ends of the tank in a manner so that water in the tank is sealed off from the inside of the passageway, the passageway being part of an internal combustion engine cooling system water line, the flow of engine heated water through the passageway causing the fresh water in the tank to heat up, a fill cap at the top of the tank for pouring in fresh water, a presSure gauge and release valve with an air stem extending from the top of the tank, a water pipe extending downward from the bottom of the tank, and a pump connected to the pipe for pumping the heated fresh water to the area where the water is to be used for washing and consumption, said passageway having a diameter larger than that of the water line located outside the tank for increasing the area of heat exchange with said passageway positioned to receive the flow of water directly after the water leaves the engine of the mobile vehicle.
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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |