Patent US3404684A successfully refreshed from Google Patents.
US3404684A
Expired / Lapsed
US
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Oxygen therapy enclosure with cooling chamber
Assignee: ALBERT E MCKEE
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Filing: 1964-04-23
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Granted: 1968-10-08
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Expires: 1984-04-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Earl J Brewer
- 👤 Don B Singer
- 👤 Albert E Mckee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
A; A61; A61G; A61G10/00; A61G10/04; A61M; A61M2205/00; A61M2205/36; A61M2205/3606
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
THE IMPROVEMENT IN AN OXYGEN THERAPY ENCLOSURE WHICH INCLUDES A CANOPY ADAPTED TO BE DISPOSED ABOUT THE HEAD OF A PATIENT COMPRISING, A COOLING CHAMBER HAVING AN OPENING WHICH IS CONNECTED TO SAID CANOPY, SAID OPENING BEING ADAPTED TO BE POSITIONED ABOVE AND ADJACENT THE PATIENT, A REFRIGERATION SYSTEM INCLUDING EVAPORATOR PLATES FORMING A PORTION OF SAID CHAMBER, A BLOWER FAN IN SAID CHAMBER IN WHICH THE BLOWER OUTLET IS DIRECTED AGAINST THE EVAPORATOR PLATES, AN OXYGEN INLET LEADING INTO SAID CHAMBER AND INTO THE BLOWER INLET WHEREBY THE OXYGEN IS DIRECTED AGAINST THE EVAPORATOR PLATES AND COOLED, SAID OPENING POSITIONED OUT OF THE DIRECTED PATH OF THE BLOWER FAN OUTPUT WHEREBY THE TURBULENT CIRCULATING OXYGEN IS CONTAINED IN SAID COOLING CHAMBER AND THE FLOW FROM THE CHAMBER IS LIMITED TO COOLED OXYGEN CAUSED BY AND EQUAL TO THE FLOW OF OXYGEN FROM THE OXYGEN INLET.
Claim 2
Dependent Claim
146 words
THE IMPROVEMENT IN AN OXYGEN THERAPY ENCLOSURE WHICH INCLUDES A CANOPY ADAPTED TO BE DISPOSED ABOUT THE HEAD OF A PATIENT COMPRISING, A COOLING CHAMBER HAVING AN OPENING WHICH IS CONNECTED TO SAID CANOPY, SAID OPENING BEING ADAPTED TO BE POSITIONED ABOVE AND ADJACENT THE PATIENT, A REFRIGERATION SYSTEM INCLUDING EVAPORATOR PLATES FORMING A PORTION OF SAID CHAMBER, A BLOWER FAN IN SAID CHAMBER IN WHICH THE BLOWER OUTLET IS DIRECTED AGAINST THE EVAPORATOR PLATES, AN OXYGEN INLET LEADING INTO SAID CHAMBER AND INTO THE BLOWER INLET WHEREBY THE OXYGEN IS DIRECTED AGAINST THE EVAPORATOR PLATES AND COOLED, SAID OPENING POSITIONED OUT OF THE DIRECTED PATH OF THE BLOWER FAN OUTPUT WHEREBY THE TURBULENT CIRCULATING OXYGEN IS CONTAINED IN SAID COOLING CHAMBER AND THE FLOW FROM THE CHAMBER IS LIMITED TO COOLED OXYGEN CAUSED BY AND EQUAL TO THE FLOW OF OXYGEN FROM THE OXYGEN INLET.
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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |