US4258880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fireplace heating system with finned tubes or fireplace grate
Assignee: Individual
•
Filing: 1978-08-29
•
Granted: 1981-03-31
•
Expires: 1998-08-29
Abstract
Abstract A fireplace heating system having a fireplace furnace connected to a heat transfer device and to a fluid source for heating a fluid received from the source and feeding heated fluid to the heat transfer device in order to heat a building, and the like, in which the heat transfer device is located. The furnace coils forming a grate and arranged extending in a tortuous path in vertically displaced, substantially horizontal planes and a substantially vertical plane extending between the horizontal planes for partially surrounding a fire built on the coils in order to achieve efficient heat transfer between the fire and the fluid being passed through the coils.
Inventors
- 👤 Ernest W. Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:57
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/18; F24B1/183; F24D; F24D11/00; F24D11/02; F24D11/0214; F24D11/0235; Y; Y02; Y02B; Y02B10/00; Y02B10/70; Y02B30/00; Y02B30/52
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
362 words
A fireplace heating system, comprising, in combination: (a) fireplace furnace means arrangeable in a fireplace for heating a fluid passing through the furnace means; (b) fluid storage means connected to the furnace means for feeding fluid to the furnace means and for providing a reservoir of heated fluid; and (c) heat transfer means connected to the furnace means for receiving heated fluid from the furnace means and heating a space in which the heat transfer means is disposed, the heat transfer means being a plurality of radiators connected to the fluid storage means for returning the fluid to the storage means and storing and recycling the fluid so as to form a closed fluid flow system, a pump being inserted between the heat transfer means and the fluid storage means for circulating fluid through the closed fluid flow system, with the storage means being provided with an inlet arranged for adding fluid to the system in order to make up losses, the heat transfer means including a like number of lines as radiators, the lines being connected in parallel with and bypassing the radiators for selectively permitting adjustment of fluid flow through the radiators, and a plurality of valves, each of the lines having one of the valves disposed therein for permitting adjustment of the amount of fluid passed through the radiators, the furnace means including a continuous member bent into a plurality of connected, horizontally extending coils disposed above a hearth of the fireplace for forming a continuous tortuous flow path of the fluid through the fireplace, and the furnace means further including a stand supporting the coils, the stand including a substantially horizontal framework, legs supporting the framework, and a substantially vertically disposed element extending from the framework, with at least some of the coils being arranged extending horizontally on both the framework and along the vertically disposed element for partially surrounding on two sides a fire built on the coils and the remainder of the coils extending above and laterally from said vertically disposed element for partially covering the top of a fire built on the coils, the coils disposed forming a grate for the fire in the fireplace.
Claim 2
Dependent Claim
362 words
A fireplace heating system, comprising, in combination: (a) fireplace furnace means arrangeable in a fireplace for heating a fluid passing through the furnace means; (b) fluid storage means connected to the furnace means for feeding fluid to the furnace means and for providing a reservoir of heated fluid; and (c) heat transfer means connected to the furnace means for receiving heated fluid from the furnace means and heating a space in which the heat transfer means is disposed, the heat transfer means being a plurality of radiators connected to the fluid storage means for returning the fluid to the storage means and storing and recycling the fluid so as to form a closed fluid flow system, a pump being inserted between the heat transfer means and the fluid storage means for circulating fluid through the closed fluid flow system, with the storage means being provided with an inlet arranged for adding fluid to the system in order to make up losses, the heat transfer means including a like number of lines as radiators, the lines being connected in parallel with and bypassing the radiators for selectively permitting adjustment of fluid flow through the radiators, and a plurality of valves, each of the lines having one of the valves disposed therein for permitting adjustment of the amount of fluid passed through the radiators, the furnace means including a continuous member bent into a plurality of connected, horizontally extending coils disposed above a hearth of the fireplace for forming a continuous tortuous flow path of the fluid through the fireplace, and the furnace means further including a stand supporting the coils, the stand including a substantially horizontal framework, legs supporting the framework, and a substantially vertically disposed element extending from the framework, with at least some of the coils being arranged extending horizontally on both the framework and along the vertically disposed element for partially surrounding on two sides a fire built on the coils and the remainder of the coils extending above and laterally from said vertically disposed element for partially covering the top of a fire built on the coils, the coils disposed forming a grate for the fire in the fireplace.
Claim 3
Dependent Claim
35 words
The system of claim 1 wherein said remainder of coils include a plurality of heat exchange disks connected to a portion of each coil with each heat exchange disk surrounding the periphery of a coil.
References Cited (Backward Citations)
US670066A
Cited
US1576899A
Cited
US1549071A
Cited
FR639468A
Cited
US2539469A
Cited
FR1004182A
Cited
US2849185A
Cited
GB965964A
Cited
US3635211A
Cited
US3945369A
Cited
US3958755A
Cited
US4046320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |