US3844338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of operating public bath and the like
Assignee: Individual
•
Filing: 1971-09-22
•
Granted: 1974-10-29
•
Expires: 1991-09-22
Abstract
Abstract An enclosed bath system, having a bath chamber in which a body of water has its surface exposed to the air in the chamber. A heat pump, having an evaporator, a condenser and a circulating primary heat-transfer fluid carrying thermal energy absorbd at the evaporator to the condenser, circulates air from the chamber into heat-exchanging relation with the evaporator and the condenser successively whereby the evaporator abstracts heat and mositure from the circulated air and the condenser reheats the circulated air prior to its return to the chamber.
Inventors
- 👤 H Gettman
- 👤 H Hilgemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:36
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0071
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
156 words
The method of controlling the temperature of an enlcosed bath system having a housing defining a bath chamber and a body of water having a surface exposed to the air in said chamber, said method comprising the steps of: heating said body of water to a temperature above a minimum bathing temperature with low cost energy derived during periods of low enerGy cost; permitting the transfer of heat and moisture from said body of water to the air in said chamber; terminating the heating of said body of water during periods of high energy cost; and continuously abstracting heat and condensing moisture from a portion of the air in said chamber and thereafter returning said portion of said air to said chamber after heating said portion of the air from which heat was abstracted and moisture condensed at least in part with the heat energy originally abstracted from said portion during periods of high energy cost.
Claim 2
Independent Claim
156 words
The method of controlling the temperature of an enlcosed bath system having a housing defining a bath chamber and a body of water having a surface exposed to the air in said chamber, said method comprising the steps of: heating said body of water to a temperature above a minimum bathing temperature with low cost energy derived during periods of low enerGy cost; permitting the transfer of heat and moisture from said body of water to the air in said chamber; terminating the heating of said body of water during periods of high energy cost; and continuously abstracting heat and condensing moisture from a portion of the air in said chamber and thereafter returning said portion of said air to said chamber after heating said portion of the air from which heat was abstracted and moisture condensed at least in part with the heat energy originally abstracted from said portion during periods of high energy cost.
Claim 3
Dependent Claim
33 words
The method defined in claim 1, further comprising the step of operating a heat-consuming apparatus independently of said chamber with at least part of the heat abstracted from said portion of said air.
Claim 4
Dependent Claim
27 words
The method defined in claim 2, further comprising the step of mixing a quantity of fresh air with said portion of said air prior to reheating it.
References Cited (Backward Citations)
US1791751A
Cited
US1986863A
Cited
US2073784A
Cited
US2315184A
Cited
US2805047A
Cited
US3264839A
Cited
US3381108A
Cited
US3459257A
Cited
US3550677A
Cited
US3444921A
Cited
US3666004A
Cited
US3532156A
Cited
US3563304A
Cited
US3603379A
Cited
US3680630A
Cited
DK76982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |