US3762392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot water heater system for divers
Assignee: Individual
•
Filing: 1971-05-19
•
Granted: 1973-10-02
•
Expires: 1991-05-19
Abstract
Abstract A system for delivering heated water to divers including a circulation system having a source of heat and a heat exchanger for transferring the heat to water in the circulation system, and a supply system utilizing centrifugal pumps to deliver water to the circulation system. The circulation system has sufficient volume so that the fluctuation in temperature caused by variation in the amount of water demanded by the diver or divers is minimized. An automatic temperature controlled device is provided to regulate the temperature of the water delivered to the diver by mixing controlled amounts of unheated water with water from the circulation system heated to a temperature in excess of that required.
Inventors
- 👤 R Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:09
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A system for delivering heated water to divers comprising, a circulation system including a source of heat means for transferring at least a portion of said heat to the water in said circulation system, a supply system including means for pumping water from a source of unheated water, means for delivery of said unheated water to said circulation system, a heated water delivery system including means for transferring the water in said circulation system to a diver, said heated water delivery system including automatic mixing means for adding a variable quantity of unheated water to maintain a constant temperature output of heated water despite variations in the flow of water to said divers, and said heated water delivery system including means for connecting said automatic mixing means from said system and controlling the addition of unheated water manually.
Claim 2
Independent Claim
138 words
A system for delivering heated water to divers comprising, a circulation system including a source of heat means for transferring at least a portion of said heat to the water in said circulation system, a supply system including means for pumping water from a source of unheated water, means for delivery of said unheated water to said circulation system, a heated water delivery system including means for transferring the water in said circulation system to a diver, said heated water delivery system including automatic mixing means for adding a variable quantity of unheated water to maintain a constant temperature output of heated water despite variations in the flow of water to said divers, and said heated water delivery system including means for connecting said automatic mixing means from said system and controlling the addition of unheated water manually.
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |