US4154210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood fired furnace
Assignee: Individual
•
Filing: 1977-08-24
•
Granted: 1979-05-15
•
Expires: 1997-08-24
Abstract
Abstract This invention comprises a furnace heating device having a fire box and hollow tubing extending longitudinally through the internal portion of said fire box through which a heating medium is circulated to outside radiators. The fire box has an ash drawer extending through the bottom portion of the fire box adjacent to the coiled tubing.
Inventors
- 👤 John B. Jaymes
- 👤 James A. Kling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:36
CPC Classifications
F; F24; F24B; F24B13/00; F24B13/006; F24B7/00; F24B7/04; F24B9/00; F24H; F24H1/00; F24H1/22; F24H1/40; F24H3/00; F24H3/02; F24H3/06; F24H3/08; F24H3/088
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
214 words
A furnace device having a fire box therein adapted to contain burning fuel and coals, comprising in combination: a hollow front jacket positioned in the forward portion of said fire box; a hollow rear jacket positioned in the rear portion of said fire box; hollow tubing extending between said front jacket and said rear jacket, along the bottom and side portions of said fire box, said tubing being in continuous supporting contact with said coals and burning fuel; a heating medium within said hollow front jacket, said hollow rear jacket, and said hollow tubing; an inlet orifice connected to the bottom portion of said hollow rear jacket; an outlet orifice positioned on the upper portion of said hollow rear jacket; an ash drawer positioned adjacent to said hollow tubing on the bottom portion of said fire box, said ash drawing comprising in combination: (1) a top plate positioned adjacent to said hollow tubing, said top plate being in continuous supporting contact with said coals and said burning fuel; (2) two (2) lateral side plates attached to and extending downwardly from said top plate and resting upon the bottom of said furnace device; a front plate attached to said top plate and said two (2) lateral side plates and extending downwardly from said top plate.
Claim 2
Dependent Claim
214 words
A furnace device having a fire box therein adapted to contain burning fuel and coals, comprising in combination: a hollow front jacket positioned in the forward portion of said fire box; a hollow rear jacket positioned in the rear portion of said fire box; hollow tubing extending between said front jacket and said rear jacket, along the bottom and side portions of said fire box, said tubing being in continuous supporting contact with said coals and burning fuel; a heating medium within said hollow front jacket, said hollow rear jacket, and said hollow tubing; an inlet orifice connected to the bottom portion of said hollow rear jacket; an outlet orifice positioned on the upper portion of said hollow rear jacket; an ash drawer positioned adjacent to said hollow tubing on the bottom portion of said fire box, said ash drawing comprising in combination: (1) a top plate positioned adjacent to said hollow tubing, said top plate being in continuous supporting contact with said coals and said burning fuel; (2) two (2) lateral side plates attached to and extending downwardly from said top plate and resting upon the bottom of said furnace device; a front plate attached to said top plate and said two (2) lateral side plates and extending downwardly from said top plate.
Claim 3
Dependent Claim
41 words
The combination as claimed in claim 1, in which said two (2) lateral side plates have a hand loop pivotally attached thereto and extending there between, said hand loop adapted to hand support said ash drawer in its inverted scoop position.
Claim 4
Dependent Claim
72 words
The combination as claimed in claim 2, in which said ash drawer door is comprised of in combination: a front plate hinged upon said furnace device; a door bar integrally attached to said front plate and extending therefrom; a serrated bar attached to said furnace device, said serrations in engaging contact with said bar, whereby said drawer may be incrementally held open to allow an adjustable draft to enter said furnace device.
Claim 5
Dependent Claim
16 words
The combination as claimed in claim 3, having a thermometer extending within said hollow rear jacket.
Claim 6
Dependent Claim
18 words
The combination as claimed in claim 4, having a pressure sensing device extending within said hollow rear jacket.
Claim 7
Dependent Claim
22 words
The combination as claimed in claim 5, having a circulating pump connected to said inlet orifice to circulate said heating medium therein.
Claim 8
Dependent Claim
14 words
The combination as claimed in claim 6, in which said heating medium is water.
Claim 9
Dependent Claim
14 words
The combination as claimed in claim 6, in which said heating medium is gas.
References Cited (Backward Citations)
GB978392A
Cited
US128624A
Cited
US135236A
Cited
US222653A
Cited
US834444A
Cited
US912980A
Cited
US1778694A
Cited
US1887041A
Cited
US2660997A
Cited
US3635211A
Cited
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 |