US4154211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Log-burning stove
Assignee: CHOATE J ROBERT
•
Filing: 1978-03-20
•
Granted: 1979-05-15
•
Expires: 1998-03-20
Abstract
Abstract A log-burning stove which contains a full refractory firebox, the stove designed to permit the easy insertion of large, economical, wood logs, particularly green logs, which stove comprises a shell defining a combustion chamber, the combustion chamber fully lined with refractory material, and having an entrance and a full-length loading door adapted to permit the easy introduction of logs into the combustion chamber, the door adapted to move between a closed, upright, sealed position and an open supporting position extending generally laterally from the lower portion of the entrance opening, the door containing roller means on the internal surface thereof which provides for the lateral movement of a large log thereon which permits the positioning of the log adjacent the center of the entrance, whereby, after said positioning of the log adjacent the opening, the log may be moved inwardly through the entrance and into the combustion chamber.
Inventors
- 👤 James R. Choate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:31
CPC Classifications
F; F24; F24B; F24B13/00; F24B13/04; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0848; Y10T292/0849; Y10T292/086
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
244 words
A log-burning stove which comprises: (a) a shell defining a combustion chamber for the combustion of logs; (b) a flue for the discharge of gaseous combustion products derived from the combustion of the logs; (c) an entrance in one wall of the shell and into the combustion chamber for the introduction of logs into the combustion chamber; (d) a door adapted to be placed in an open or a closed position, and which door in the closed upright position seals the entrance, and in the open position extends generally laterally outwardly from the lower bottom edge of the entrance; (e) means to provide for the movement of the door between an open and a closed position; and (f) draft-control means to control the flow of draft air into the combustion chamber, which control means comprises (i) an elongated opening, between the lower edge of the door and the lower edge of the entrance, to permit the passage of air into the combustion chamber, (ii) an eccentrically rotatable and mounted rod member extending generally adjacent and parallel to the elongated draft opening, (iii) means to secure the ends of the rod member for eccentric rotation, and (iv) handle means to move the rod member between a closed position, wherein the elongated shaft member is disposed across the elongated opening to prevent the passage of air, and into an open position, wherein the elongated member is moved away from the elongated opening to admit draft air.
Claim 2
Dependent Claim
244 words
A log-burning stove which comprises: (a) a shell defining a combustion chamber for the combustion of logs; (b) a flue for the discharge of gaseous combustion products derived from the combustion of the logs; (c) an entrance in one wall of the shell and into the combustion chamber for the introduction of logs into the combustion chamber; (d) a door adapted to be placed in an open or a closed position, and which door in the closed upright position seals the entrance, and in the open position extends generally laterally outwardly from the lower bottom edge of the entrance; (e) means to provide for the movement of the door between an open and a closed position; and (f) draft-control means to control the flow of draft air into the combustion chamber, which control means comprises (i) an elongated opening, between the lower edge of the door and the lower edge of the entrance, to permit the passage of air into the combustion chamber, (ii) an eccentrically rotatable and mounted rod member extending generally adjacent and parallel to the elongated draft opening, (iii) means to secure the ends of the rod member for eccentric rotation, and (iv) handle means to move the rod member between a closed position, wherein the elongated shaft member is disposed across the elongated opening to prevent the passage of air, and into an open position, wherein the elongated member is moved away from the elongated opening to admit draft air.
Claim 3
Dependent Claim
34 words
The stove of claim 1 wherein the draft-control means includes a pair of springs mounted at each end of the supported rod member to permit the adjustment of the rod across the elongated opening.
Claim 4
Dependent Claim
45 words
The stove of claim 1 wherein the handle means to move the eccentrically rotatable mounted shaft comprises an angular draft-control handle secured to said rod member, whereby movement of the handle in a plane generally perpendicular to the entrance provides for control of the draft.
Claim 5
Dependent Claim
114 words
The stove of claim 1 which includes a top refractory plate having a width less than the one-dimension plenum of the stove, which top plate defines an upper chamber and a lower combustion chamber, with a flow passageway between the chambers, the lower chamber defining the combustion area for the logs, and the upper chamber providing a heat-plenum chamber through which the gaseous combustion products pass, the flue opening into the upper chamber, and means to adjust the position of the refractory plate from the front to the back of said stove, so as to vary the flow path of the gaseous combustion products from the lower combustion chamber into the upper plenum chamber.
Claim 6
Dependent Claim
47 words
The stove of claim 4 wherein the upper heat-plenum chamber includes a plurality of baffle means therein to provide for the tortuous flow passage of gaseous combustion products from the lower gaseous chamber through the upper heat-plenum baffle chamber before discharging such gaseous products from the flue.
Claim 7
Dependent Claim
58 words
The stove of claim 1 wherein the means to provide for the movement between the open and closed positions comprises hinge means and means to adjust the position of the hinge means on the lower portion of the door, so that the bottom portion of the door can be adjusted against the bottom wall edge of the entrance.
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) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |