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US4177791A Expired / Lapsed US ⏱️ 0.0 years remaining

Wood-burning stoves

Assignee: Waterford Ironfounders Ltd
•
Filing: 1978-01-17
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Granted: 1979-12-11
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Expires: 1998-01-17
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Abstract

Abstract A store having a parallelepiped-shaped combustion chamber and a parallelepiped-shaped flue chamber smaller in all dimensions than the combustion chamber and with four similar shaped flue outlet frames on the top, rear and sides thereof. The stove includes one flue outlet collar and three blanking plates which can be fitted in any chosen arrangement to the flue outlet frames. The stove has a lift-off hob giving access to the flue chambers even when the flue outlet collar is fitted in the top outlet frame. The fire door occupies the full frontal area of the combustion chamber and the side walls are each formed in two parts of substantially uniform section. The combustion chamber base has sinuous finning.

Inventors

  • 👤 Nicholas G. Marchant

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 14:15
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/02

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 176 words
A wood-burning stove comprising a combustion chamber defined by a base panel, side panels, rear panel, a front frame, a fire door and ventilator on the front frame, a top frame, and a horizontally disposed baffle plate occupying the rearward region of the top frame to leave an opening forward of said baffle plate for the escape of gases upwardly from the combustion chamber; the stove also comprising a flue chamber above the combustion chamber to accept gases therefrom, said flue chamber being defined by said baffle plate, a front panel, side panels, a rear frame defining a rear flue opening, an upper frame defining an upper flue opening, a liftable and movable hob panel apertured in the region of said upper flue opening, a removable flue outlet collar in one of said flue openings and a removable blanking plate in the other of said openings so that, when said flue outlet collar is in the top flue opening frame, the hob can be lifted and moved independently of the collar to give access for cleaning.
Claim 2
Dependent Claim 176 words
A wood-burning stove comprising a combustion chamber defined by a base panel, side panels, rear panel, a front frame, a fire door and ventilator on the front frame, a top frame, and a horizontally disposed baffle plate occupying the rearward region of the top frame to leave an opening forward of said baffle plate for the escape of gases upwardly from the combustion chamber; the stove also comprising a flue chamber above the combustion chamber to accept gases therefrom, said flue chamber being defined by said baffle plate, a front panel, side panels, a rear frame defining a rear flue opening, an upper frame defining an upper flue opening, a liftable and movable hob panel apertured in the region of said upper flue opening, a removable flue outlet collar in one of said flue openings and a removable blanking plate in the other of said openings so that, when said flue outlet collar is in the top flue opening frame, the hob can be lifted and moved independently of the collar to give access for cleaning.
Claim 3
Dependent Claim 15 words
A wood-burning stove as claimed in claim 1 in which said hob-panel has underside finning.
Claim 4
Dependent Claim 21 words
A wood-burning stove as claimed in claim 2 in which the base panel of the combustion chamber has sinuous topside finning.
Claim 5
Dependent Claim 28 words
A wood-burning stove as claimed in claim 1 in which the side panels of the combustion chamber comprise two sub-panels arranged side by side of substantially uniform section.
Claim 6
Dependent Claim 22 words
A wood-burning stove as claimed in claim 4 in which said fire door occupies the full frontal area of the combustion chamber.
Claim 7
Dependent Claim 186 words
A wood-burning stove comprising a parallelepiped-shaped combustion chamber defined by a base panel having topside sinuous finning, side panels each formed by two sub-panels side-by-side with vertical external finning, a rear panel, a front frame, a fire door with a ventilator swung on the front frame to occupy the full frontal area of the combustion chamber, a top frame, and a horizontally-disposed baffle plate occupying the rearward region of the top frame to leave an opening forward of said baffle plate for the escape of gases upwardly from the combustion chamber; the stove also comprising a parallelepiped-shaped flue chamber above the combustion chamber, to accept gases therefrom, said flue chamber being defined by said baffle plate, a front panel, forwardly located partial side panels, rearwardly located side flue opening frames, a rear flue opening frame, an upper hob flue opening frame, a removable flue outlet collar in one of said flue opening frames, removable blanking plates in the other said opening frames, and a lift-off hob panel having underside finning and apertured at the region of said upper flue opening frame to fit around said frame.
Claim 8
Dependent Claim 186 words
A wood-burning stove comprising a parallelepiped-shaped combustion chamber defined by a base panel having topside sinuous finning, side panels each formed by two sub-panels side-by-side with vertical external finning, a rear panel, a front frame, a fire door with a ventilator swung on the front frame to occupy the full frontal area of the combustion chamber, a top frame, and a horizontally-disposed baffle plate occupying the rearward region of the top frame to leave an opening forward of said baffle plate for the escape of gases upwardly from the combustion chamber; the stove also comprising a parallelepiped-shaped flue chamber above the combustion chamber, to accept gases therefrom, said flue chamber being defined by said baffle plate, a front panel, forwardly located partial side panels, rearwardly located side flue opening frames, a rear flue opening frame, an upper hob flue opening frame, a removable flue outlet collar in one of said flue opening frames, removable blanking plates in the other said opening frames, and a lift-off hob panel having underside finning and apertured at the region of said upper flue opening frame to fit around said frame.

References Cited (Backward Citations)

US38194A Cited
US167594A Cited
US188475A Cited
US612004A Cited
US689078A Cited
US876909A Cited
US1768584A Cited
US2400150A Cited
US3880139A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-12-10 1983-06-11 1983-12-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-12-10 1987-06-11 1987-12-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-12-10 1991-06-11 1991-12-11 $7700.00 Window Closed / Lapsed

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