Patent US3721802A successfully refreshed from Google Patents.
US3721802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam generator
Assignee: NORDIC CLOUD CORP
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Filing: 1972-01-17
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Granted: 1973-03-20
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Expires: 1992-01-17
Abstract
Abstract A portable, freestanding, fully automatic ancillary steam generator unit for use with sauna baths, steam rooms, or the like. The steam generator is disposed exteriorly of the sauna bath or steam room and comprises a housing, a body having an electrically heated, thermostatically controlled internal steam chamber disposed within and insulated from the housing, a water reservoir and a connector element for interconnecting the steam chamber and the water reservoir and for metering the flow of water to the steam chamber. The upper and lower walls of the steam chamber are provided with a plurality of uniformly spaced, generally V-shaped grooves for efficiently dispersing and vaporizing the water entering the steam chamber.
Inventors
- 👤 E Chrisman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:08
CPC Classifications
A; A61; A61H; A61H33/00; A61H33/06; A61H33/063; F; F22; F22B; F22B1/00; F22B1/28; F22B1/287
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
175 words
An auxiliary steam generator for use with sauna baths, steam rooms and the like, comprising: a. a body having an internal chamber defined by side walls and spaced upper and lower walls, said upper and lower walls being provided with water dispersion and vaporization means in the form of a plurality of spaced generally V-shaped grooves on their opposing faces, said body having a water inlet passage leading to the internal chamber and a steam outlet passage leading from the internal chamber and adapted to convey steam to a sauna bath, steam room or the like; b. a thermostatically controlled electrical heating element contiguous to said lower wall of said internal chamber adapted to heat said upper and lower walls of said chamber to a temperature above the boiling point of water; c. a water reservoir having an outlet opening; and d. a water metering means interconnecting said water reservoir outlet opening and said water inlet passage of said body for metering the flow of water from said water reservoir to the internal steam chamber.
Claim 2
Dependent Claim
175 words
An auxiliary steam generator for use with sauna baths, steam rooms and the like, comprising: a. a body having an internal chamber defined by side walls and spaced upper and lower walls, said upper and lower walls being provided with water dispersion and vaporization means in the form of a plurality of spaced generally V-shaped grooves on their opposing faces, said body having a water inlet passage leading to the internal chamber and a steam outlet passage leading from the internal chamber and adapted to convey steam to a sauna bath, steam room or the like; b. a thermostatically controlled electrical heating element contiguous to said lower wall of said internal chamber adapted to heat said upper and lower walls of said chamber to a temperature above the boiling point of water; c. a water reservoir having an outlet opening; and d. a water metering means interconnecting said water reservoir outlet opening and said water inlet passage of said body for metering the flow of water from said water reservoir to the internal steam chamber.
Claim 3
Dependent Claim
10 words
a water inlet passage leading to the internal chamber; and
Claim 4
Dependent Claim
10 words
a water inlet passage leading to the internal chamber; and
Claim 5
Dependent Claim
58 words
An auxiliary steam generator as defined in claim 1 in which said water metering means comprises: a. a connector for interconnecting said water inlet passage of said body and said outlet opening of said water reservoir, said connector having a capillary-like bore therethrough; and b. a manually removable closure means for closing said capillary-like bore in said connector.
Claim 6
Dependent Claim
13 words
a manually removable closure means for closing said capillary-like bore in said connector.
Claim 7
Dependent Claim
13 words
a manually removable closure means for closing said capillary-like bore in said connector.
Claim 8
Dependent Claim
32 words
An auxiliary steam generator for use with sauna baths, steam rooms and the like, comprising: a. a housing; b. a body disposed within said housing and thermally insulated therefrom, said body having:
Claim 9
Dependent Claim
32 words
An auxiliary steam generator for use with sauna baths, steam rooms and the like, comprising: a. a housing; b. a body disposed within said housing and thermally insulated therefrom, said body having:
Claim 10
Dependent Claim
107 words
a steam outlet passage leading from the internal chamber and adapted to convey steam to a sauna bath, steam room, or the like; c. a thermostatically controlled electrical heating element contiguous to said lower wall of said internal chamber adapted to heat said upper and lower walls of said chamber to a temperature above the boiling point of water; d. a water reservoir having an outlet opening; and e. a water metering means interconnecting said water reservoir outlet opening and said water inlet passage of said body for metering the flow of water from said water reservoir to the internal steam chamber, said water metering means comprising:
Claim 11
Dependent Claim
107 words
a steam outlet passage leading from the internal chamber and adapted to convey steam to a sauna bath, steam room, or the like; c. a thermostatically controlled electrical heating element contiguous to said lower wall of said internal chamber adapted to heat said upper and lower walls of said chamber to a temperature above the boiling point of water; d. a water reservoir having an outlet opening; and e. a water metering means interconnecting said water reservoir outlet opening and said water inlet passage of said body for metering the flow of water from said water reservoir to the internal steam chamber, said water metering means comprising:
Claim 12
Dependent Claim
75 words
An auxiliary steam generator as defined in claim 3 in which said housing is provided with an opening in the upper portion thereof, in which said water reservoir is carried by and has its lower end depending into said housing through the opening therein, and in which said closure means comprises an elongated wire adapted to be closely received in the capillary-like bore in said connector so as to prevent the flow of water therethrough.
Claim 13
Dependent Claim
30 words
An auxiliary steam generator as defined in claim 4 in which said water reservoir is open at its upper end and said elongated wire is manually removable through said opening.
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) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |