US4316446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Woodburning heater with protected viewing window
Assignee: RUSSO Manufacturing CORP
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Filing: 1979-06-25
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Granted: 1982-02-23
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Expires: 1999-06-25
Abstract
Abstract In a wood burning heater of the type having a relatively large glass window in the side of the heater for viewing the fire within the heater box, a door for shielding the glass window from the fire when the door is closed, a vent for controlling the flow of air to cool the glass and means for opening and closing the door, such that the vent must be open permitting air flow to cool the window in order for the door to be opened.
Inventors
- 👤 Richard A. Russo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:57
CPC Classifications
F; F24; F24B; F24B13/00; F24B13/004
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
170 words
A stove comprising in combination: a housing enclosing a combustion chamber adapted to burn a solid fuel; a side opening in said housing for viewing the interior of said combustion chamber; a frame surrounding said side opening and secured to said housing; a transparent panel supported by said frame at a fixed position spaced forwardly of said side opening; a vent opening in said frame between said transparent panel and said side opening; a vent cover movable on said frame between a closed position blocking said vent opening and an open position providing access therethrough to the space between said transparent panel and said side opening; and door means mounted on said frame within said space, said door means being accessible solely through said vent opening when said vent cover is open and being adjustable between an open position exposing said transparent panel to the interior of said combustion chamber and a closed position providing a protective heat shield between said transparent panel and the interior of said combustion chamber.
Claim 2
Dependent Claim
170 words
A stove comprising in combination: a housing enclosing a combustion chamber adapted to burn a solid fuel; a side opening in said housing for viewing the interior of said combustion chamber; a frame surrounding said side opening and secured to said housing; a transparent panel supported by said frame at a fixed position spaced forwardly of said side opening; a vent opening in said frame between said transparent panel and said side opening; a vent cover movable on said frame between a closed position blocking said vent opening and an open position providing access therethrough to the space between said transparent panel and said side opening; and door means mounted on said frame within said space, said door means being accessible solely through said vent opening when said vent cover is open and being adjustable between an open position exposing said transparent panel to the interior of said combustion chamber and a closed position providing a protective heat shield between said transparent panel and the interior of said combustion chamber.
Claim 3
Dependent Claim
18 words
The stove as claimed in claim 1 wherein said door means comprises a pair of foldable door members.
Claim 4
Dependent Claim
23 words
The stove of claim 2 wherein said door members are foldable and pivotally adjustable about vertical axes between said open and closed positions.
References Cited (Backward Citations)
US3757766A
Cited
US4091794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-22 | 1985-08-24 | 1986-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-22 | 1989-08-24 | 1990-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-22 | 1993-08-24 | 1994-02-23 | $7700.00 | Window Closed / Lapsed |