Patent US3999535A successfully refreshed from Google Patents.
US3999535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated fireplace
Assignee: HALL FIREPLACE Inc
•
Filing: 1974-11-11
•
Granted: 1976-12-28
•
Expires: 1994-11-11
Abstract
Abstract A forced air home heating system includes a prefabricated metal fireplace having a combustion chamber surrounded by a heat collection distribution chamber. The fireplace distribution chamber functions as the central distribution chamber for the forced air home heating system to which air is supplied from a furnace or other heat source and from which it is distributed throughout the home. If there is a fire in the fireplace, fireplace generated heat then supplements or replaces heat from the primary home heating source in the forced air system.
Inventors
- 👤 John R. Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:44
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
372 words
A prefabricated fireplace assembly including a complete home heating and cooling system comprising, in combination, a rigid metal framework and a masonry enclosure surrounding said rigid metal framework defining front and rear masonry fireplace walls, an open-front fireplace combustion chamber defined by a hearth floor, side walls, a rear wall, and a flue opening for exhaust of combustion products, said chamber being mounted within said framework and opening at said front fireplace wall, an air distribution chamber surrounding said combustion chamber and being in heat exchange relationship with the walls thereof, said air distribution chamber having inner side walls and a rear wall adjacent said combustion chamber side walls and rear wall, said air distribution chamber further having outer side walls and a rear wall spaced from said inner side walls being interconnected by top and bottom walls, and a pair of front walls interconnecting said inner and outer side walls of said air distributionchamber, said distribution chamber further having an air inlet, and at least one air outlet, a chimney, a waste air dispensing hood mounted above said air distribution chamber and interconnecting said flue opening of said combustion chamber and said chimney, first and second recesses spaced behind said air distribution chamber, said recesses having at least one opening for the inlet and outlet of air, respectively, said first recess including a blower compartment, a heating and cooling compartment, and a disbursement compartment, said first and second recesses communicating with said air distribution chamber through said air inlet and said air outlet of said distribution chamber, respectively, blower means mounted in said blower compartment for inducting air into said first recess and forcing said air through said air distribution chamber and said second recess, the inducted air coming into heat exchange relationship with the walls of said fireplace combustion chamber as it passes through said air distribution chamber, heating and air conditioning means mounted in said heating and cooling compartment for conditioning the temperature of air passing therethrough, and air flow ducts for supplying conditioned air from said distribution chamber air outlet to areas surrounding said fireplace, said combustion chamber, said distribution chamber, said recess and said dispensing hood being surrounded and enclosed within said rigid metal framework and masonry.
Claim 2
Dependent Claim
372 words
A prefabricated fireplace assembly including a complete home heating and cooling system comprising, in combination, a rigid metal framework and a masonry enclosure surrounding said rigid metal framework defining front and rear masonry fireplace walls, an open-front fireplace combustion chamber defined by a hearth floor, side walls, a rear wall, and a flue opening for exhaust of combustion products, said chamber being mounted within said framework and opening at said front fireplace wall, an air distribution chamber surrounding said combustion chamber and being in heat exchange relationship with the walls thereof, said air distribution chamber having inner side walls and a rear wall adjacent said combustion chamber side walls and rear wall, said air distribution chamber further having outer side walls and a rear wall spaced from said inner side walls being interconnected by top and bottom walls, and a pair of front walls interconnecting said inner and outer side walls of said air distributionchamber, said distribution chamber further having an air inlet, and at least one air outlet, a chimney, a waste air dispensing hood mounted above said air distribution chamber and interconnecting said flue opening of said combustion chamber and said chimney, first and second recesses spaced behind said air distribution chamber, said recesses having at least one opening for the inlet and outlet of air, respectively, said first recess including a blower compartment, a heating and cooling compartment, and a disbursement compartment, said first and second recesses communicating with said air distribution chamber through said air inlet and said air outlet of said distribution chamber, respectively, blower means mounted in said blower compartment for inducting air into said first recess and forcing said air through said air distribution chamber and said second recess, the inducted air coming into heat exchange relationship with the walls of said fireplace combustion chamber as it passes through said air distribution chamber, heating and air conditioning means mounted in said heating and cooling compartment for conditioning the temperature of air passing therethrough, and air flow ducts for supplying conditioned air from said distribution chamber air outlet to areas surrounding said fireplace, said combustion chamber, said distribution chamber, said recess and said dispensing hood being surrounded and enclosed within said rigid metal framework and masonry.
Claim 3
Dependent Claim
41 words
The fireplace assembly of claim 1 wherein said first recess includes an upper blower compartment, a central heating and cooling compartment, and a lower disbursement compartment, said lower disbursement compartment communicating with said air distribution chamber through said air inlet thereof.
Claim 4
Dependent Claim
13 words
The fireplace assembly of claim 1 wherein said masonry enclosure is precast concrete.
Claim 5
Dependent Claim
28 words
The fireplace assembly of claim 1 wherein said opening of said first recess is in said rear masonry fireplace wall and further comprising a grate covering said opening.
Claim 6
Dependent Claim
28 words
The fireplace assembly of claim 4 wherein said opening of said second recess is in said rear masonry fireplace wall and further comprising a grate covering said opening.
Claim 7
Dependent Claim
47 words
The fireplace assembly of claim 1 further comprising a prefabricated metal plenum chamber located beneath said hearth and having at least one inlet in communication with said distribution chamber outlet, and air flow ducts for supplying conditioned air from said plenum chamber to areas surrounding said fireplace.
References Cited (Backward Citations)
US2186539A
Cited
US2191064A
Cited
US2231258A
Cited
US2258682A
Cited
US2570598A
Cited
US2832332A
Cited
US3466000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-12-28 | 1980-06-28 | 1980-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-28 | 1984-06-28 | 1984-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-28 | 1988-06-28 | 1988-12-28 | $7700.00 | Window Closed / Lapsed |