Patent DE503874C successfully refreshed from Google Patents.
US3358675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall furnace
Assignee: Lear Siegler Inc
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Filing: 1966-02-04
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Granted: 1967-12-19
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Expires: 1986-02-04
Abstract
No abstract record available.
Inventors
- 👤 Voges William Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:27
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/06; F24H3/10; F24H3/105; F24H3/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A WALL FURNACE COMPRISING A CABINET HAVING A BASE, A TOP AND FRONT, REAR AND SIDE WALLS, PORTS IN THE CABINET TO ADMIT AND EMIT AIR, A COMBUSTION CHAMBER WITHIN THE CABINET AND SPACED FROM THE CABINET WALLS TO PROVIDE FLOW PASSAGES BETWEEN THE CABINET AND THE COMBUSTION CHAMBER, HEATING MEANS WITHIN SAID COMBUSTION CHAMBER, A SUBSTANTIALLY FLAT PLATE FORMING THE TOP OF SAID COMBUSTION CHAMBER WITH TWO FLUES EXTENDING UPWARDLY FROM THE TOP PLATE AND JOINING TO FORM A CHAMBER THEREBETWEEN, SAID CHAMBER BEING IN FLOW COMMUNICATION WITH THE FLOW PASSAGES, AND A BLOWER INCLUDING ITS MOTOR POSITIONED IN SAID CHAMBER TO DRAW AIR INTO SAID CABINET AND FORCE SUCH AIR DOWNWARDLY AGAINST THE TOP PLATE OF THE COMBUSTION CHAMBER AND THROUGH THE FLOW PASSAGES IN HEAT EXCHANGE RELATIONSHIP WITH THE COMBUSTION CHAMBER.
Claim 2
Dependent Claim
134 words
A WALL FURNACE COMPRISING A CABINET HAVING A BASE, A TOP AND FRONT, REAR AND SIDE WALLS, PORTS IN THE CABINET TO ADMIT AND EMIT AIR, A COMBUSTION CHAMBER WITHIN THE CABINET AND SPACED FROM THE CABINET WALLS TO PROVIDE FLOW PASSAGES BETWEEN THE CABINET AND THE COMBUSTION CHAMBER, HEATING MEANS WITHIN SAID COMBUSTION CHAMBER, A SUBSTANTIALLY FLAT PLATE FORMING THE TOP OF SAID COMBUSTION CHAMBER WITH TWO FLUES EXTENDING UPWARDLY FROM THE TOP PLATE AND JOINING TO FORM A CHAMBER THEREBETWEEN, SAID CHAMBER BEING IN FLOW COMMUNICATION WITH THE FLOW PASSAGES, AND A BLOWER INCLUDING ITS MOTOR POSITIONED IN SAID CHAMBER TO DRAW AIR INTO SAID CABINET AND FORCE SUCH AIR DOWNWARDLY AGAINST THE TOP PLATE OF THE COMBUSTION CHAMBER AND THROUGH THE FLOW PASSAGES IN HEAT EXCHANGE RELATIONSHIP WITH THE COMBUSTION 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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |