US4336086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of lining a furnace with roll-type insulation
Assignee: Premier Refractories and Chemicals Inc
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Filing: 1980-09-18
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Granted: 1982-06-22
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Expires: 2000-09-18
Abstract
Abstract A method of lining an interior surface of a furnace with roll-type insulation by attaching a plurality of hooks onto the interior surface to be lined, folding back portions of the roll-type insulation on themselves to create folds in the roll-type insulation, and pressing the folds onto the hooks to thereby attach the roll-type insulation to the interior surface. Each of the plurality of hooks includes a hook member for passage through portions of the roll-type insulation. Each hook member is fixedly attached to the interior surface of the furnace either by being welded directly thereto when the interior surface of the furnace is metal or by being fixedly attached to a plate member which is in turn bolted, riveted, or otherwise fixedly attached to the interior surface of the furnace. The hook member includes a leg portion having a pointed first end for passage through the roll-type insulation and having a second end. The hook member also includes a bridge portion having a first end fixedly attached to the plate member and having a second end substantially remote from the first end thereof and fixedly attached to the second end of the leg portion.
Inventors
- 👤 James P. Rast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:49
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/0003; F27D1/0006; F27D1/0009; F27D1/0013; F27D1/16; F27D1/1621; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1015; Y10T156/1052; Y10T156/1056; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49732; Y10T29/49739; Y10T29/49826; Y10T29/49833; Y10T29/49835; Y10T29/49947; Y10T29/49948; Y10T29/49952; Y10T29/49972; Y10T428/00; Y10T428/19; Y10T428/192; Y10T428/195; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24686; Y10T428/249921; Y10T428/249923
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
104 words
A method of lining an interior surface of a furnace with roll-type insulation, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of said roll-type insulation on themselves to create folds; (c) pressing said folds of said roll-type insulation onto said hook means to fixedly attach said roll-type insulation to said hook means and to said interior surface of said furnace so as to line said interior surface of said furnace with said folds of said roll-type insulation; and (d) overlapping the side edges of adjacent folds of said roll-type insulation.
Claim 2
Independent Claim
104 words
A method of lining an interior surface of a furnace with roll-type insulation, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of said roll-type insulation on themselves to create folds; (c) pressing said folds of said roll-type insulation onto said hook means to fixedly attach said roll-type insulation to said hook means and to said interior surface of said furnace so as to line said interior surface of said furnace with said folds of said roll-type insulation; and (d) overlapping the side edges of adjacent folds of said roll-type insulation.
Claim 3
Dependent Claim
63 words
The method of claim 1 in which is included the steps of: (a) rolling a portion of said roll-type insulation into an elongated spiral-like roll; and (b) attaching said elongated roll to any substantially 90° bend formed by said interior surface of said furnace so as to line said substantially 90° bend of said interior surface of said furnace with said roll-type insulation.
Claim 4
Dependent Claim
35 words
The method of claim 2 in which is included the step of tying at least one length of string about said elongated roll prior to its being attached to said interior surface of said furnace.
Claim 5
Dependent Claim
42 words
The method of claim 3 in which is included the steps of: (a) abutting said folds of said roll-type insulation and said elongated roll; and (b) attaching the abutting edges of said elongated roll and said folds of said roll-type insulation together.
Claim 6
Independent Claim
161 words
A method of lining an interior surface of a furnace with roll-type ceramic fiber insulation, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of said roll-type ceramic fiber insulation on themselves to create transverse folds in said roll-type ceramic fiber insulation; (c) pressing said transverse folds onto said hook means to fixedly attach said roll-type ceramic fiber insulation to said hook means and to said interior surface of said furnace; (d) overlapping the side edges of adjacent transverse folds; (e) rolling portions of said roll-type ceramic fiber insulation into elongated rolls; (f) tying lengths of string about said elongated rolls; (g) gluing said elongated rolls to every substantially 90° bend formed by said interior surface of said furnace; (h) abutting said transverse folds of said roll-type ceramic insulation and said elongated rolls; and (i) gluing the abutting edges of said elongated rolls and said transverse folds together.
Claim 7
Independent Claim
161 words
A method of lining an interior surface of a furnace with roll-type ceramic fiber insulation, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of said roll-type ceramic fiber insulation on themselves to create transverse folds in said roll-type ceramic fiber insulation; (c) pressing said transverse folds onto said hook means to fixedly attach said roll-type ceramic fiber insulation to said hook means and to said interior surface of said furnace; (d) overlapping the side edges of adjacent transverse folds; (e) rolling portions of said roll-type ceramic fiber insulation into elongated rolls; (f) tying lengths of string about said elongated rolls; (g) gluing said elongated rolls to every substantially 90° bend formed by said interior surface of said furnace; (h) abutting said transverse folds of said roll-type ceramic insulation and said elongated rolls; and (i) gluing the abutting edges of said elongated rolls and said transverse folds together.
Claim 8
Independent Claim
214 words
A method of lining an interior surface of a furnace with a plurality of elongated lengths of insulation, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of a first elongated length of insulation on themselves to create folds; (c) pressing said folds of said first elongated length of insulation onto a plurality of said hook means to fixedly attach said first elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a first portion of said interior surface of said furnace with said folds of insulation; (d) folding back portions of a second elongated length of insulation on themselves to create folds; and (e) pressing said folds of said second elongated length of insulation onto a plurality of said hook means with one side edge of said folds of said second elongated length of insulation overlapping the adjacent side edge of said folds of said first elongated length of insulation to fixedly attach said second elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a second portion of said interior surface of said furnace with said folds of insulation.
Claim 9
Independent Claim
214 words
A method of lining an interior surface of a furnace with a plurality of elongated lengths of insulation, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of a first elongated length of insulation on themselves to create folds; (c) pressing said folds of said first elongated length of insulation onto a plurality of said hook means to fixedly attach said first elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a first portion of said interior surface of said furnace with said folds of insulation; (d) folding back portions of a second elongated length of insulation on themselves to create folds; and (e) pressing said folds of said second elongated length of insulation onto a plurality of said hook means with one side edge of said folds of said second elongated length of insulation overlapping the adjacent side edge of said folds of said first elongated length of insulation to fixedly attach said second elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a second portion of said interior surface of said furnace with said folds of insulation.
Claim 10
Independent Claim
208 words
A method of lining an interior surface of a furnace with a plurality of elongated lengths of insulation, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of a first elongated length of insulation on themselves to create folds; (c) pressing said folds of said first elongated length of insulation onto a plurality of said hook means to fixedly attach said first elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a first portion of said interior surface of said furnace with said folds of insulation; (d) folding back portions of a second elongated length of insulation on themselves to create folds; and (e) pressing said folds of said second elongated length of insulation onto a plurality of said hook means with one top edge of said second elongated length of insulation overlapping the adjacent bottom edge of said first elongated length of insulation to fixedly attach said second elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a second portion of said interior surface of said furnace with said folds of insulation.
Claim 11
Independent Claim
208 words
A method of lining an interior surface of a furnace with a plurality of elongated lengths of insulation, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of a first elongated length of insulation on themselves to create folds; (c) pressing said folds of said first elongated length of insulation onto a plurality of said hook means to fixedly attach said first elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a first portion of said interior surface of said furnace with said folds of insulation; (d) folding back portions of a second elongated length of insulation on themselves to create folds; and (e) pressing said folds of said second elongated length of insulation onto a plurality of said hook means with one top edge of said second elongated length of insulation overlapping the adjacent bottom edge of said first elongated length of insulation to fixedly attach said second elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a second portion of said interior surface of said furnace with said folds of insulation.
Claim 12
Independent Claim
114 words
A method of lining an interior surface of a furnace with roll-type insulation including first and second layers, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of said roll-type insulation on themselves to create folds; (c) offsetting the ends of said first and second layers of said roll-type insulation one to the other; and (d) pressing said folds of said roll-type insulation onto said hook means to fixedly attach said roll-type insulation to said hook means and to said interior surface of said furnace so as to line said interior surface of said furnace with said folds of roll-type insulation.
Claim 13
Independent Claim
114 words
A method of lining an interior surface of a furnace with roll-type insulation including first and second layers, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of said roll-type insulation on themselves to create folds; (c) offsetting the ends of said first and second layers of said roll-type insulation one to the other; and (d) pressing said folds of said roll-type insulation onto said hook means to fixedly attach said roll-type insulation to said hook means and to said interior surface of said furnace so as to line said interior surface of said furnace with said folds of roll-type insulation.
Claim 14
Independent Claim
363 words
A method of lining an interior surface of a furnace with a plurality of elongated lengths of insulation having first and second layers of different grades, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of a first elongated length of insulation on themselves to create folds; (c) offsetting the ends of said first and second layers of said first elongated length of insulation one to the other; (d) pressing said folds of said first elongated length of insulation onto a plurality of said hook means to fixedly attach said first elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a first portion of said interior surface of said furnace with said folds of insulation; (e) folding back portions of a second elongated length of insulation on themselves to create folds; (f) pressing said folds of said second elongated length of insulation onto a plurality of said hook means with one side edge of said folds of said second elongated length of insulation overlapping the adjacent side edge of said folds of said first elongated length of insulation to fixedly attach said second elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a second portion of said interior surface of said furnace with said folds of insulation; (g) folding back portions of a third elongated length of insulation on themselves to create folds; (h) offsetting the ends of said first and second layers of said third elongated length of insulation one to the other; and (i) pressing said folds of said third elongated length of insulation onto a plurality of said hook means with the offset ends of said first and second layers of said first and third elongated lengths of insulation forming a splice with one another to fixedly attach said second elongated length of insulation to said hook means and to said interior surfaces of said furnace so as to line a third portion of said interior surface of said furnace with said folds of insulation.
Claim 15
Independent Claim
363 words
A method of lining an interior surface of a furnace with a plurality of elongated lengths of insulation having first and second layers of different grades, said method comprising: (a) fixedly attaching a plurality of hook means to said interior surface of said furnace; (b) folding back portions of a first elongated length of insulation on themselves to create folds; (c) offsetting the ends of said first and second layers of said first elongated length of insulation one to the other; (d) pressing said folds of said first elongated length of insulation onto a plurality of said hook means to fixedly attach said first elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a first portion of said interior surface of said furnace with said folds of insulation; (e) folding back portions of a second elongated length of insulation on themselves to create folds; (f) pressing said folds of said second elongated length of insulation onto a plurality of said hook means with one side edge of said folds of said second elongated length of insulation overlapping the adjacent side edge of said folds of said first elongated length of insulation to fixedly attach said second elongated length of insulation to said hook means and to said interior surface of said furnace so as to line a second portion of said interior surface of said furnace with said folds of insulation; (g) folding back portions of a third elongated length of insulation on themselves to create folds; (h) offsetting the ends of said first and second layers of said third elongated length of insulation one to the other; and (i) pressing said folds of said third elongated length of insulation onto a plurality of said hook means with the offset ends of said first and second layers of said first and third elongated lengths of insulation forming a splice with one another to fixedly attach said second elongated length of insulation to said hook means and to said interior surfaces of said furnace so as to line a third portion of said interior surface of said furnace with said folds of insulation.
References Cited (Backward Citations)
US3819468A
Cited
US3854262A
Cited
US3892396A
Cited
US3993237A
Cited
US4011394A
Cited
US4123886A
Cited
US4086737A
Cited
US4222337A
Cited
US4246852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |