Patent US4006733A successfully refreshed from Google Patents.
US4006733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free standing fireplace for mobile homes
Assignee: Malm Fireplaces Inc
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Filing: 1975-07-14
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Granted: 1977-02-08
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Expires: 1995-07-14
Abstract
Abstract A free standing fireplace for a mobile home vents incoming air into the fireplace through a vertical vent extending through the floor of the mobile home into a conical base and vents the combustion products through a chimney which extends through the ceiling. The combustion air reaches the firebox area through a conical flow space provided between the fire bowl and conical base.
Inventors
- 👤 Glen D. Crownover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:06
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/18; F24B1/181
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
134 words
A free standing fireplace for a mobile home having a floor and ceiling comprising: a base for resting on said floor forming a cavity and having a central vertical axis; elongated vent means having an axis substantially coincident with said central axis forming the lower boundary of said cavity for extending through said floor to the outside atmosphere; concave fire bowl means for retaining fuel suspended in and forming the upper boundary of said cavity said fire bowl means being spaced from the wall of said cavity for forming a flow space from said vent means to said fuel; hood means juxtaposed above said base and fire bowl means; and a chimney connected to said hood and having an axis coincident with said central axis for extending through said ceiling to the outside atmosphere.
Claim 2
Dependent Claim
134 words
A free standing fireplace for a mobile home having a floor and ceiling comprising: a base for resting on said floor forming a cavity and having a central vertical axis; elongated vent means having an axis substantially coincident with said central axis forming the lower boundary of said cavity for extending through said floor to the outside atmosphere; concave fire bowl means for retaining fuel suspended in and forming the upper boundary of said cavity said fire bowl means being spaced from the wall of said cavity for forming a flow space from said vent means to said fuel; hood means juxtaposed above said base and fire bowl means; and a chimney connected to said hood and having an axis coincident with said central axis for extending through said ceiling to the outside atmosphere.
Claim 3
Dependent Claim
42 words
A fireplace as in claim 1 where said cavity is cone shaped and said fire bowl means includes a conical side wall spaced from the wall of said cavity to form a conical flow space from said vent means to said fuel.
Claim 4
Dependent Claim
51 words
A fireplace as in claim 2 where said base includes an annular air deflector ring and said fire bowl means includes means for spacing its upper rim a predetermined distance from said air deflector ring to direct air from said conical flow space toward said fuel in said fire bowl means.
Claim 5
Dependent Claim
37 words
A fireplace as in claim 1 together with an intermediate cylindrical portion joining said base to said hood means including a pair of sliding solid doors for sealing the fireplace from the interior of said mobile home.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |