Patent US3414708A successfully refreshed from Google Patents.
US3414708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forced convection oven
Assignee: Malleable Iron Range Co
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Filing: 1965-10-22
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Granted: 1968-12-03
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Michael W Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:13
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/32; F24C15/322; F24C15/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A FORCED CONVECTION OVEN COMPRISING AN OVEN ENCLOSURE HAVING FOUR WALLS, A TOP, AND A BOTTOM, AN AXIAL DELIVERY FAN LOCATED NEAR SAID BOTTOM, A RING-SHAPED BAFFLE LOCATED NEAR SAID FAN IN SUBSTANTIALLY SURROUNDING RELATIONSHIP, AND IMPERFORATE BAFFLE LOCATED ABOVE THE OPENING IN SAID RING-SHAPED BAFFLE, SAID BAFFLES COOPERATING TO DIRECT THE OUTPUT AIR STREAM OF SAID FAN LATERALLY TOWARD SAID WALLS, THE INTAKE AIR STREAM OF SAID FAN MOVING LATERALLY INWARD BELOW SAID RING-SHAPED BAFFLE, AT LEAST A PART OF SAID OUTPUT AND INPUT AIR STREAMS CONSTITUTING A PIRMARY AIR STREAM PATH, SAID OUTPUT AIR STREAM INDUCING A SECONDARY AIR STREM WHICH MOVES UPWARDLY ALONG SAID WALLS AND DOWNWARDLY IN ATHE MIDDLE OF SAID OVEN, AND AN ELECTRIC HEAT SOURCE LOCATED IN SAID PRIMARY AIR STREAM PATH.
Claim 2
Dependent Claim
128 words
A FORCED CONVECTION OVEN COMPRISING AN OVEN ENCLOSURE HAVING FOUR WALLS, A TOP, AND A BOTTOM, AN AXIAL DELIVERY FAN LOCATED NEAR SAID BOTTOM, A RING-SHAPED BAFFLE LOCATED NEAR SAID FAN IN SUBSTANTIALLY SURROUNDING RELATIONSHIP, AND IMPERFORATE BAFFLE LOCATED ABOVE THE OPENING IN SAID RING-SHAPED BAFFLE, SAID BAFFLES COOPERATING TO DIRECT THE OUTPUT AIR STREAM OF SAID FAN LATERALLY TOWARD SAID WALLS, THE INTAKE AIR STREAM OF SAID FAN MOVING LATERALLY INWARD BELOW SAID RING-SHAPED BAFFLE, AT LEAST A PART OF SAID OUTPUT AND INPUT AIR STREAMS CONSTITUTING A PIRMARY AIR STREAM PATH, SAID OUTPUT AIR STREAM INDUCING A SECONDARY AIR STREM WHICH MOVES UPWARDLY ALONG SAID WALLS AND DOWNWARDLY IN ATHE MIDDLE OF SAID OVEN, AND AN ELECTRIC HEAT SOURCE LOCATED IN SAID PRIMARY AIR STREAM PATH.
References Cited (Backward Citations)
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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) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |