Patent US4852548A successfully refreshed from Google Patents.
US4852548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal fireplace assembly
Assignee: HEARTH TECHNOLOGIES Inc
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Filing: 1988-05-31
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Granted: 1989-08-01
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Expires: 2008-05-31
Abstract
Abstract A universal fireplace is provided as standard prefabricated substantially hollow rectangular prism shaped frame adapted to support all six walls of the universal fireplaces supported on the hollow rectangular prism shaped frame. The top wall is adapted to support the exhaust stack and the bottom wall is adapted to support the fire brick for the fire chamber. At least one of the sidewalls comprises a pair of glass doors supported by edge frame means pivoted on upper and lower side support panels which are mounted on said hollow rectangular prism shaped frame.
Inventors
- 👤 Ronald J. Shimek
- 👤 Daniel C. Shimek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:51
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/18; F24B1/191; F24B1/192; F24B1/181; F24B1/185; F24B1/189; F24B1/19
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
232 words
A universal fireplace of the type having four sidewalls, a top wall and a bottom wall wherein at least one of said sidewalls is provided with economical heat resistant glass comprising: a substantially hollow rectangular prism L-shaped frame for supporting all six walls of said universal fireplace, said hollow rectangular prism frame comprising a plurality of structural steel formed shapes welded together to form a rigid support frame, bottom wall means connected to said rectangular prism frame forming a bottom closure for said frame, top wall means connected to said rectangular prism frame forming a top closure for said frame, a plurality of bottom support shields connected to said bottom wall means and to the bottom of said rectangular prism frame for uniformly distributing the weight of said fireplace onto said rectangular prism frame, a plurality of top support shields connected to said top wall means and to the top of said rectangular prism frame for uniformly distributing the weight of said fireplace onto said rectangular prism frame, smoke shield means supported by said rectangular prisms frame for diverting smoke to an exhaust stack, exhaust outlet means extending through said smoke shield means and said top wall means for receiving an exhaust stack, and four sidewall panels each being supported by said rectangular prism frame and said bottom support shields and nesting between pairs of said bottom and said top support shields.
Claim 2
Dependent Claim
232 words
A universal fireplace of the type having four sidewalls, a top wall and a bottom wall wherein at least one of said sidewalls is provided with economical heat resistant glass comprising: a substantially hollow rectangular prism L-shaped frame for supporting all six walls of said universal fireplace, said hollow rectangular prism frame comprising a plurality of structural steel formed shapes welded together to form a rigid support frame, bottom wall means connected to said rectangular prism frame forming a bottom closure for said frame, top wall means connected to said rectangular prism frame forming a top closure for said frame, a plurality of bottom support shields connected to said bottom wall means and to the bottom of said rectangular prism frame for uniformly distributing the weight of said fireplace onto said rectangular prism frame, a plurality of top support shields connected to said top wall means and to the top of said rectangular prism frame for uniformly distributing the weight of said fireplace onto said rectangular prism frame, smoke shield means supported by said rectangular prisms frame for diverting smoke to an exhaust stack, exhaust outlet means extending through said smoke shield means and said top wall means for receiving an exhaust stack, and four sidewall panels each being supported by said rectangular prism frame and said bottom support shields and nesting between pairs of said bottom and said top support shields.
Claim 3
Dependent Claim
18 words
A universal fireplace as set forth in claim 1 wherein said bottom wall means comprises insulation sandwich means.
Claim 4
Dependent Claim
33 words
A universal fireplace as set forth in claim 2 wherein said bottom wall means further comprises fire brick support means spaced apart from said insulation sandwich means and forming an air plenum therebetween.
Claim 5
Dependent Claim
25 words
A universal fireplace as set forth in claim 3 which further includes preheat support means attached to the bottom of said fire brick support means.
Claim 6
Dependent Claim
22 words
A universal fireplace as set forth in claim 4 which further includes fresh air inlet means connected to said preheat support means.
Claim 7
Dependent Claim
24 words
A universal fireplace as set forth in claim 5 which further includes closure plate means movably mounted for closing off said fresh air inlet.
Claim 8
Dependent Claim
47 words
A universal fireplace as set forth in claim 3 which further includes fresh air supply apertures in said bottom support means for supplying fresh outside air to the bottom of the sidewall panels having glass therein and for supplying combustion air and for cooling said tempered glass.
Claim 9
Dependent Claim
38 words
A universal fireplace as set forth in claim 1 wherein at least one of said side walls comprises a pair of glass doors supported by edge frame means and pivoted on said upper and said lower support panels.
Claim 10
Dependent Claim
35 words
A universal fireplace as set forth in claim 8 wherein said edge frame means are spaced apart from upper and said lower support panels for supplying cooling air across said glass in said glass doors.
Claim 11
Dependent Claim
45 words
A universal fireplace as set forth in claim 9 wherein said smoke shield comprises downward depending deflector plates at the peripheral edge for deflecting smoke inward toward said exhaustion outlet means and for deflecting downward fresh air entering the top edge of said glass doors.
Claim 12
Dependent Claim
37 words
A universal fireplace as set forth in claim 9 wherein said smoke shield further comprises hot gas diverter plates mounted inside said smoke shield means for diverting hot smokey exhaust gas directly into said exhaust outlet means.
Claim 13
Dependent Claim
24 words
A universal fireplace as set forth in claim 1 wherein said top wall means comprises insulation sandwich means forming an outer top wall portion.
Claim 14
Dependent Claim
31 words
A universal fireplace as set forth in claim 12 wherein said insulating sandwich means comprises downward depending flanges at the peripheral edges attached to the top of said smoke shield means.
Claim 15
Dependent Claim
29 words
A universal fireplace as set forth in claim 13 which further includes a dead air space between said top wall means and the top of said smoke screen means
Claim 16
Dependent Claim
40 words
A universal fireplace as set forth in claim 1 wherein one of said sidewalls comprise insulating sandwich means having upper and lower extending flanges connected to said upper and lower support shields for providing a zero clearance blind side panel.
Claim 17
Dependent Claim
41 words
A universal fireplace as set forth in claim 1 wherein one of said sidewalls comprises a tempered glass plate having a perimeter frame all around said glass plate, and attachment means connected to said perimeter frame and to said support shields.
Claim 18
Dependent Claim
31 words
A universal fireplace as set forth in claim 1 wherein one of said sidewalls comprises a pair of tempered glass doors pivotally mounted in said upper and said lower support shields.
Claim 19
Dependent Claim
44 words
A universal fireplace as set forth in claim 17 wherein said tempered glass doors are provided with edge frame means for supporting said glass doors, and pivotal support means attached to said edge frame means and mounted in pivot apertures in said support shields.
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) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |