Patent US2829580A successfully refreshed from Google Patents.
US4076010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Factory-built fireplace spacer construction
Assignee: Heatilator Inc
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Filing: 1976-11-08
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Granted: 1978-02-28
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Expires: 1996-11-08
Abstract
Abstract A factory-built fireplace having movable spacer members associated therewith for insuring a necessary minimum clearance between portions of an outer surface of the fireplace and combustible structural members used for permanent enclosure thereof. The spacer members are formed from a single sheet or plate of metal and associated with the outer wall of the fireplace so as to be movable between folded and erected positions. When folded, as during packing and shipping, no portion of the spacer members extends an appreciable distance outwardly of the outer fireplace surface, and when erected for installation the edges of the spacer members define the closest position at which combustible framing members may be placed to the outer fireplace surface.
Inventors
- 👤 George M. Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:30
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
129 words
A factory built fireplace unit for enclosure by combustible framing members and having integral means for insuring minimum clearance distance between an exterior surface of said unit and said framing members, said unit comprising, in combination: (a) a fireplace unit having an outer shell of sheet metal defining the exterior surface thereof; and (b) a rigid, plate-like spacer member having a straight edge portion and associated with said outer shell for movement with respect thereto about an axis substantially in the plane of said shell between a folded position, wherein no portion of said spacer member extends an appreciable distance beyond said external surface, and an erected position, wherein said edge portion is arranged at a distance from said external surface at least equal to said minimum clearance distance.
Claim 2
Dependent Claim
129 words
A factory built fireplace unit for enclosure by combustible framing members and having integral means for insuring minimum clearance distance between an exterior surface of said unit and said framing members, said unit comprising, in combination: (a) a fireplace unit having an outer shell of sheet metal defining the exterior surface thereof; and (b) a rigid, plate-like spacer member having a straight edge portion and associated with said outer shell for movement with respect thereto about an axis substantially in the plane of said shell between a folded position, wherein no portion of said spacer member extends an appreciable distance beyond said external surface, and an erected position, wherein said edge portion is arranged at a distance from said external surface at least equal to said minimum clearance distance.
Claim 3
Dependent Claim
50 words
The invention according to claim 1 wherein said outer shell includes a slotted opening of predetermined length and width, and said spacer member extends through said opening, having a first portion disposed on the side of said shell defining said exterior surface, and a second portion on the opposite side.
Claim 4
Dependent Claim
29 words
The invention according to claim 2 wherein said first and second portions are integrally formed from a single sheet of metal and disposed at an angle to one another.
Claim 5
Dependent Claim
12 words
The invention according to claim 3 wherein said angle is approximately 90°.
Claim 6
Dependent Claim
37 words
The invention according to claim 3 wherein said spacer member is bent along a substantially straight line to define said first and second portions on opposite sides thereof, and said axis is approximately defined by said line.
Claim 7
Dependent Claim
31 words
The invention according to claim 5 wherein said first portion is longer and said second portion shorter than the length of said opening where the two portions meet at said line.
Claim 8
Dependent Claim
80 words
The invention according to claim 6 wherein said second portion includes a deformable portion having an undeformed dimension wider than the width of said opening and a deformed dimension not greater than the width of said opening, said deformable portion having a natural resilience tending to maintain said undeformed dimension, whereby said second portion may be moved through said opening only when said deformable portion is moved to said deformed dimension and the latter is arranged transversely of said opening.
Claim 9
Dependent Claim
40 words
The invention according to claim 7 wherein said deformable portion comprises an integral part of said second portion bent back upon itself at substantially 180° when at said deformed dimension and at less than 180° when at said undeformed dimension.
Claim 10
Dependent Claim
38 words
The invention according to claim 8 and further including an additional portion extending rigidly from said first portion, and means fixedly attaching said additional portion to said fireplace unit to maintain said spacer member in said erected position.
Claim 11
Dependent Claim
45 words
The invention according to claim 9 wherein said slotted opening is formed in an upper wall of said outer shell, the latter including a flue opening, and wherein said additional portion extends into said flue opening when said spacer member is in said folded position.
References Cited (Backward Citations)
US70233A
Cited
US1858967A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |