US3877084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable sauna
Assignee: Individual
•
Filing: 1973-06-28
•
Granted: 1975-04-15
•
Expires: 1993-06-28
Abstract
Abstract An inflatable sauna in the shape of a hollow free-standing dome. The dome has double walls which are fastened together by spacedapart rivets and the space between the walls is low pressure inflated to erect the dome. An interior vertical partition divides the dome into a sauna room and a warming room. An interior heater/ventilator maintains the sauna room at a high temperature and the warming room at a moderate temperature, and also exhausts moisture-laden stale air from the sauna.
Inventors
- 👤 Timothy E Johnson
- 👤 Thomas K Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:05
CPC Classifications
A; A61; A61H; A61H33/00; A61H33/06; A61H2201/00; A61H2201/01; A61H2201/0161
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
210 words
An inflatable sauna comprising: (a) a hollow, free-standing collapsible structure having an exterior wall, and having an interior wall fastened face to face to said exterior wall solely at spaced locations to form a single interconnected inflation chamber therebetween; (b) an air valve mounted on one of said walls and communicating with said inflation chamber for use in inflating and deflating said chamber; (c) a partition disposed vertically within said structure and being affxied to said interior wall to divide the interior of said structure into a sauna room and a warming room, said paritition including closable passage means for permitting occupants to pass between said rooms; (d) door means mounted in said structure to provide a closable entrance and exit to and from said warming room; (e) a heating unit mounted within said structure for heating the air within said sauna room to at least 170*; and (f) an exhaust conduit having its inlet end positioned in communication with said heating unit within the interior of said structure at a height nearer to the lowermost portion than to the uppermost portion of said structure, and having its outlet end positioned outside of said structure whereby heating unit exhaust gases and cool moist air are continuously exhausted from said structure.
Claim 2
Dependent Claim
210 words
An inflatable sauna comprising: (a) a hollow, free-standing collapsible structure having an exterior wall, and having an interior wall fastened face to face to said exterior wall solely at spaced locations to form a single interconnected inflation chamber therebetween; (b) an air valve mounted on one of said walls and communicating with said inflation chamber for use in inflating and deflating said chamber; (c) a partition disposed vertically within said structure and being affxied to said interior wall to divide the interior of said structure into a sauna room and a warming room, said paritition including closable passage means for permitting occupants to pass between said rooms; (d) door means mounted in said structure to provide a closable entrance and exit to and from said warming room; (e) a heating unit mounted within said structure for heating the air within said sauna room to at least 170*; and (f) an exhaust conduit having its inlet end positioned in communication with said heating unit within the interior of said structure at a height nearer to the lowermost portion than to the uppermost portion of said structure, and having its outlet end positioned outside of said structure whereby heating unit exhaust gases and cool moist air are continuously exhausted from said structure.
Claim 3
Dependent Claim
20 words
The inflatable sauna of claim 1 wherein said inflation chamber is inflated to a pressure of less than 20 lbs./sq.ft.
Claim 4
Dependent Claim
16 words
The inflatable sauna of claim 1 wherein said structure has the shape of a truncated dome.
Claim 5
Dependent Claim
22 words
The inflatable sauna of claim 1 wherein said interior wall is fastened to said exterior wall at points forming a uniform pattern.
Claim 6
Dependent Claim
21 words
The inflatable sauna of claim 1 wherein airtight, self-sealing rivets are employed to fasten said interior wall to said exterior wall.
Claim 7
Dependent Claim
45 words
The inflatable sauna of claim 1 wherein said heating unit is a gas-fired convection heater having a casing having an upper opening and a lower opening, said upper opening being connected to said exhaust conduit inlet end, and said lower opening being unconnected and unobstructed.
Claim 8
Dependent Claim
27 words
The inflatable sauna of claim 6 wherein said heating unit includes means for continuously trickle inflating said inflation chamber, said means being powered by the gas fuel.
Claim 9
Dependent Claim
52 words
The inflatable sauna of claim 1 wherein said door means includes a separate frame mounted vertically, and an openable panel closing said door frame, said door means extending entirely exteriorly of said exterior wall whereby full head room is provided to a person standing in said structure adjacent to said door means.
Claim 10
Dependent Claim
50 words
The inflatable sauna of claim 1 wherein said heating unit is powered by combustible fuel and is housed within a heater unit casing, and said exhaust conduit has its inlet end connected to said heating unit casing to receive and exhaust the combustion gases produced by the heating unit operation.
Claim 11
Dependent Claim
45 words
The inflatable sauna of claim 9 further having a fresh air conduit, said fresh air conduit having its inlet end disposed outside of said structure and having its outlet end positioned adjacent to said heating unit casing to furnish air for the heating unit operation.
Claim 12
Dependent Claim
65 words
The inflatable sauna of claim 1 further having a fresh air conduit, said fresh air conduit having its inlet end positioned outside of said structure, and having its outlet end positioned within said structure at a height nearer to the lowermost portion than to the uppermost portion of said structure, said outlet end being positioned adjacent to said heating unit to furnish fresh air thereto.
Claim 13
Dependent Claim
65 words
The inflatable sauna of claim 11 wherein said heating unit includes means for convectively heating the air within the sauna room, said heating unit means causing the heated air to rise and circulate therein, causing fresh air to be drawn into said structure through said fresh air inlet conduit, and causing moist stale air to be drawn out of said structure through said exhaust conduit.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |