US3348922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon dioxide generator
Assignee: Whirlpool Corp
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Filing: 1964-07-13
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Granted: 1967-10-24
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Expires: 1984-07-13
Abstract
No abstract record available.
Inventors
- 👤 Robert N Bose
- 👤 William I Tibbitts
- 👤 Rolf I Ranum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:59
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
APPARATUS FOR PROVIDING CARBON DIOXIDE RICH GAS TO THE ATMOSPHERE IN A CHAMBER, COMPRISING: AN ENCLOSURE; A BURNER IN SAID ENCLOSURE FOR BURNING HYDROCARBON FUEL IN THE PRESENCE OF AIR TO PROVIDE SAID GAS IN A HEATED CONDITION; FIRST CONDUIT MEANS IN SAID ENCLOSURE FOR FLOWING SAID GAS FROM SAID BURNER INTO SAID CHAMBER; SECOND CONDUIT MEANS IN SAID ENCLOSURE FOR FLOWING A GASEOUS COMPONENT OF SAID CHAMBER ATMOSPHERE IN HEAT EXCHANGE RELATIONSHIP WITH SAID HEATED GAS PRIOR TO SIA DGAS ENTERING SAID CHAMBER; AND MOVABLE VALVE MEANS IN SAID SECOND CONDUIT MEANS FOR DIRECTING SAID COMPONENT SUABSEQUENT TO SAID HEAT EXCHANGE FLOW SELECTIVELY TO SAID CHAMBER OR TO A PLACE OF DISPOSAL TO REGULATE THE TEMPERATURE IN SAID CHAMBER.
Claim 2
Dependent Claim
120 words
APPARATUS FOR PROVIDING CARBON DIOXIDE RICH GAS TO THE ATMOSPHERE IN A CHAMBER, COMPRISING: AN ENCLOSURE; A BURNER IN SAID ENCLOSURE FOR BURNING HYDROCARBON FUEL IN THE PRESENCE OF AIR TO PROVIDE SAID GAS IN A HEATED CONDITION; FIRST CONDUIT MEANS IN SAID ENCLOSURE FOR FLOWING SAID GAS FROM SAID BURNER INTO SAID CHAMBER; SECOND CONDUIT MEANS IN SAID ENCLOSURE FOR FLOWING A GASEOUS COMPONENT OF SAID CHAMBER ATMOSPHERE IN HEAT EXCHANGE RELATIONSHIP WITH SAID HEATED GAS PRIOR TO SIA DGAS ENTERING SAID CHAMBER; AND MOVABLE VALVE MEANS IN SAID SECOND CONDUIT MEANS FOR DIRECTING SAID COMPONENT SUABSEQUENT TO SAID HEAT EXCHANGE FLOW SELECTIVELY TO SAID CHAMBER OR TO A PLACE OF DISPOSAL TO REGULATE THE TEMPERATURE IN SAID CHAMBER.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |