US4341916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric furnace insulation module
Assignee: J T THROPE COMPANY A CORP OF TX
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Filing: 1980-10-30
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Granted: 1982-07-27
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Expires: 2000-10-30
Abstract
Abstract Refractory fiber blanket blocks for electric furnaces having electrical heating elements mounted therewith by supports provide substantially improved insulation capabilities for electric furnaces when attached to the furnace walls. The support elements are in the form of holder members for receiving and support heating elements of the electric furnace and an arcuate spearing member which is capable of insertion into the insulative block at any desired location on an inner surface or hot face without requiring any anchoring structure for heating element support. The arcuate spearing member may take several forms and supports the heating element, engaging only the fiber blanket without anchoring structure for support.
Inventors
- 👤 Carlisle O. Byrd, Jr.
- 👤 Mack A. Hounsel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:56
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/62; H05B3/66; F; F27; F27D; F27D1/00; F27D1/0003; F27D1/0006; F27D1/0009; F27D1/002; F27D11/00; F27D11/02
Claims Analysis
Total Claims: 63
Claim 1
Independent Claim
95 words
A product comprising: (a) a block of refractory fiber blanket insulation material; (b) an electric heating element; (c) holder member means for supporting said electric heating element; (d) arcuate spearing means mounted with said holder member means for attaching said holder member means to said block; (e) said spearing means comprising means for supporting said holder member means on said module independently of other supporting structure wherein said holder member may be located at any desired location on said block; and (f) means for attaching said block to the inner wall of the electric furnace.
Claim 2
Dependent Claim
95 words
A product comprising: (a) a block of refractory fiber blanket insulation material; (b) an electric heating element; (c) holder member means for supporting said electric heating element; (d) arcuate spearing means mounted with said holder member means for attaching said holder member means to said block; (e) said spearing means comprising means for supporting said holder member means on said module independently of other supporting structure wherein said holder member may be located at any desired location on said block; and (f) means for attaching said block to the inner wall of the electric furnace.
Claim 3
Dependent Claim
16 words
A product as in claim 1, wherein said arcuate spearing means comprises: curved spearing hook means.
Claim 4
Dependent Claim
49 words
A product as in claim 1, wherein the insulation block is composed of plural layers of refractory fiber blanket and said arcuate spearing means comprises: spearing hook means subtending an arc of at least one hundred twenty degrees through at least one of the layers of blanket when installed.
Claim 5
Dependent Claim
47 words
A product as in claim 1, wherein the insulation block is composed of plural layers of refractory fiber blanket said arcuate spearing means comprises: spearing hook means subtending an arc of approximately one hundred fifty degrees through at least one of the layers of blanket when installed.
Claim 6
Dependent Claim
46 words
A product as in claim 1, wherein the insulation block is composed of plural layers of refractory fiber blanket said arcuate spearing means comprises: spearing hook means subtending an arc of greater than ninety degrees through at least one of the layers of blanket when installed.
Claim 7
Dependent Claim
39 words
A product as in claim 2, wherein the insulation block is composed of plural layers of refractory fiber blanket said arcuate spearing means comprises: coiled screw means adapted for boring insertion into at least one layer of the blanket.
Claim 8
Dependent Claim
20 words
A product as in claim 1, further including: means for electrically insulating said holder member means from electric heating element.
Claim 9
Dependent Claim
38 words
A product as in claim 1, wherein said holder member means comprises: (a) support member means for suspending the electric heating element thereon; and (b) head means for retaining the electric heating element on said support member means.
Claim 10
Dependent Claim
29 words
A product as in claim 8, wherein said head means comprises: a cap member formed at an opposite end of said holder support means from said arcuate spearing means.
Claim 11
Dependent Claim
20 words
A product as in claim 9, wherein said cap comprises: a head member integrally formed with said support member means.
Claim 12
Dependent Claim
25 words
A product as in claim 10, wherein said head member comprises: an upwardly extending loop mounted at an outer end of said support member means.
Claim 13
Dependent Claim
25 words
A product as in claim 10, wherein said head member comprises: a downwardly extending loop mounted at an outer end of said support member means.
Claim 14
Dependent Claim
25 words
A product as in claim 10, wherein said head member comprises: an inwardly extending loop mounted at an outer end of said support member means.
Claim 15
Dependent Claim
15 words
A product as in claim 8, wherein said support member means comprises: a support rod.
Claim 16
Dependent Claim
15 words
A product as in claim 8, wherein said support member means comprises: a support spool.
Claim 17
Dependent Claim
18 words
A product as in claim 15, wherein said head means comprises: shoulder members formed on said support spool.
Claim 18
Dependent Claim
19 words
A product as in claim 15, further including: means for attaching said support spool to said arcuate spearing means.
Claim 19
Dependent Claim
28 words
A product as in claim 1, wherein said holder member means includes: an attachment spear member for insertion into the module for additional support of the heating element.
Claim 20
Dependent Claim
17 words
A product as in claim 1, wherein said arcuate spearing means comprises: a plurality of attachment spears.
Claim 21
Dependent Claim
35 words
A product as in claim 1, wherein the heating element is sinuously folded electrical heating element said holder member means comprises: a plurality of spaced holder members for receiving adjacent loops of the heating element.
Claim 22
Dependent Claim
21 words
A product as in claim 20, further including: means for electrically insulating said plurality of spaced holder members from each other.
Claim 23
Dependent Claim
35 words
A product as in claim 1, further including: support rib means extending from said holder member means for engaging a face of the insulation block for increased support of the heating element on the module.
Claim 24
Dependent Claim
45 words
A product as in claim 22, wherein the insulation block has an inner hot face for exposure to furnace conditions and said support rib means comprises: means for engaging the face of the insulation block across portions of the hot face of the insulation block.
Claim 25
Dependent Claim
39 words
A product as in claim 1 wherein said spearing means extends through said insulation block from a first end of a surface of the block to a second end at a spaced position on a surface of the block.
Claim 26
Dependent Claim
46 words
A product as in claim 24, wherein said holder member means comprises: (a) a rod member extending between and connected to said first and second ends of said spearing means; (b) holder means with said rod member for suspending the heating element beneath said rod member.
Claim 27
Dependent Claim
17 words
A product as in claim 25 wherein said holder means is integrally formed with said rod member.
Claim 28
Dependent Claim
17 words
A product as in claim 25 wherein said holder means is movably mounted with said rod member.
Claim 29
Dependent Claim
23 words
A product as in claim 24, wherein said holder member comprises: a loop member formed at a first end of said spearing means.
Claim 30
Dependent Claim
20 words
A product as in claim 1 wherein: (a) said holder means also includes means for receiving said electric heating element.
Claim 31
Dependent Claim
113 words
In an electric furnace, an insulative lining for insulating an inner wall of the furnace, comprising: (a) an insulative layer of refractory fiber blanket insulation material; (b) an electric heating element; (c) holder member means for receiving and supporting said electric heating element; (d) arcuate spearing means mounted with said holder member means for attaching said holder member means to said insulative layer; (e) said spearing means comprising means for supporting said holder member means on said insulative layer independently of other supporting structure wherein said holder member may be located at any desired location on said layer; and (f) means for attaching said layer to the inner wall of the electric furnace.
Claim 32
Dependent Claim
113 words
In an electric furnace, an insulative lining for insulating an inner wall of the furnace, comprising: (a) an insulative layer of refractory fiber blanket insulation material; (b) an electric heating element; (c) holder member means for receiving and supporting said electric heating element; (d) arcuate spearing means mounted with said holder member means for attaching said holder member means to said insulative layer; (e) said spearing means comprising means for supporting said holder member means on said insulative layer independently of other supporting structure wherein said holder member may be located at any desired location on said layer; and (f) means for attaching said layer to the inner wall of the electric furnace.
Claim 33
Dependent Claim
18 words
The lining of claim 30, wherein said insulative layer comprises: a module of refractory fiber blanket insulation material.
Claim 34
Dependent Claim
22 words
The lining of claim 30, wherein said insulative layer comprises: a plurality of compressively stacked strips of refractory fiber blanket insulation material.
Claim 35
Dependent Claim
91 words
A support for an electric heating element for an insulation module in a refractory fiber blanket furnace lining system, comprising: (a) an electric heating element; (b) holder member means for receiving and supporting said electric heating element; (c) arcuate spearing means mounted with said holder member means for attaching said holder member means to the module; and (d) said spearing means comprising means for supporting said holder member means on said module independently of other supporting structure wherein said holder member may be located at any desired location on the module.
Claim 36
Dependent Claim
91 words
A support for an electric heating element for an insulation module in a refractory fiber blanket furnace lining system, comprising: (a) an electric heating element; (b) holder member means for receiving and supporting said electric heating element; (c) arcuate spearing means mounted with said holder member means for attaching said holder member means to the module; and (d) said spearing means comprising means for supporting said holder member means on said module independently of other supporting structure wherein said holder member may be located at any desired location on the module.
Claim 37
Dependent Claim
15 words
The support of claim 33, wherein said arcuate spearing means comprises: curved spearing hook means.
Claim 38
Dependent Claim
47 words
The support of claim 33, wherein the insulation module is composed of plural layers of refractory fiber blanket said arcuate spearing means comprises: spearing hook means subtending an arc of at least one hundred twenty degrees through at least one of the layers of blanket when installed.
Claim 39
Dependent Claim
46 words
The support of claim 33, wherein the insulation module is composed of plural layers of refractory fiber blanket said arcuate spearing means comprises: spearing hook means subtending an arc of approximately one hundred fifty degrees through at least one of the layers of blanket when installed.
Claim 40
Dependent Claim
45 words
The support of claim 33, wherein the insulation module is composed of plural layers of refractory fiber blanket said arcuate spearing means comprises: spearing hook means subtending an arc of greater than ninety degrees through at least one of the layers of blanket when installed.
Claim 41
Dependent Claim
38 words
The support of claim 33, wherein the insulation module is composed of plural layers of refractory fiber blanket said arcuate spearing means comprises: coiled screw means adapted for boring insertion into at least one layer of the blanket.
Claim 42
Dependent Claim
20 words
The support of claim 33, further including: means for electrically insulating said holder member means from said electric heating element.
Claim 43
Dependent Claim
37 words
The support of claim 33, wherein said holder member means comprises: (a) support member means for suspending said electric heating element thereon; and (b) head means for retaining the electric heating element on said support member means.
Claim 44
Dependent Claim
28 words
The support of claim 40, wherein said head means comprises: a cap member formed at an opposite end of said holder support means from said arcuate spearing means.
Claim 45
Dependent Claim
19 words
The support of claim 41, wherein said cap comprises: a head member integrally formed with said support member means.
Claim 46
Dependent Claim
24 words
The support of claim 41, wherein said head member comprises: an upwardly extending loop mounted at an outer end of said support member means.
Claim 47
Dependent Claim
24 words
The support of claim 42, wherein said head member comprises: a downwardly extending loop mounted at an outer end of said support rod means.
Claim 48
Dependent Claim
24 words
The support of claim 42, wherein said head member comprises: an inwardly extending loop mounted at an outer end of said support member means.
Claim 49
Dependent Claim
14 words
The support of claim 40, wherein said support member means comprises: a support rod.
Claim 50
Dependent Claim
14 words
The support of claim 40, wherein said support member means comprises: a support spool.
Claim 51
Dependent Claim
17 words
The support of claim 47, wherein said head means comprises: shoulder members formed on said support spool.
Claim 52
Dependent Claim
18 words
The support of claim 47, further including: means for attaching said support spool to said arcuate spearing means.
Claim 53
Dependent Claim
27 words
The support of claim 33, wherein said holder member means includes: an attachment spear member for insertion into the module for additional support of the heating element.
Claim 54
Dependent Claim
16 words
The support of claim 33, wherein said arcuate spearing means comprises: a plurality of attachment spears.
Claim 55
Dependent Claim
35 words
The support of claim 33, wherein the heating element is a sinuously folded electrical heating element said holder member means comprises: a plurality of spaced holder members for receiving adjacent loops of the heating element.
Claim 56
Dependent Claim
20 words
The support of claim 52, further including: means for electrically insulating said plurality of spaced holder members from each other.
Claim 57
Dependent Claim
34 words
The support of claim 33, further including: support rib means extending from said holder member means for engaging a face of the insulation module for increased support of the heating element on the module.
Claim 58
Dependent Claim
42 words
The support of claim 54, wherein the module has an inner hot face for exposure to furnace conditions and said support rib means comprises: means for engaging the face of the insulation module across portions of the hot face of the module.
Claim 59
Dependent Claim
37 words
The support of claim 33, wherein said spearing means extends through said module from a first end on a surface of the module to a second end at a spaced position on a surface of the module.
Claim 60
Dependent Claim
46 words
The support of claim 56, wherein said holder member means comprises: (a) a rod member extending between and connected to said first and second ends of said spearing means; and (b) holder means with said rod member for suspending the heating element beneath said rod member.
Claim 61
Dependent Claim
16 words
The support of claim 56, wherein said holder means is integrally formed with said rod member.
Claim 62
Dependent Claim
16 words
The support of claim 56, wherein said holder means is movably mounted with said rod member.
Claim 63
Dependent Claim
22 words
The support of claim 55, wherein said holder member comprises: a loop member formed at a first end of said spearing means.
References Cited (Backward Citations)
US3892396A
Cited
US3952470A
Cited
US4001996A
Cited
US4055926A
Cited
US4103469A
Cited
US4123886A
Cited
US4088825A
Cited
US4086737A
Cited
US4154975A
Cited
US4233468A
Cited
US4272638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-26 | 1986-01-25 | 1986-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-26 | 1990-01-25 | 1990-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-26 | 1994-01-25 | 1994-07-27 | $7700.00 | Window Closed / Lapsed |