US4123886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory fiber blanket module with increased insulation
Assignee: Johns Manville Corp
•
Filing: 1977-01-07
•
Granted: 1978-11-07
•
Expires: 1997-01-07
Abstract
Abstract Existing refractory fiber blanket furnace lining systems receive a layer of high temperature ceramic fiber blanket or felt on an inner surface portion, or hot face, thereof exposed to interior conditions of the furnace. The layer is attached to the module by being sewn thereto with continuous filament ceramic fiber thread. The layer can be added to increase insulation capacity on lower temperature furnace insulation or to repair damaged insulation in a furnace.
Inventors
- 👤 Carlisle O. Byrd, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:15
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/14; F27D1/144; F27D1/0003; F27D1/0006; F27D1/0009; F27D1/0013; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/20; Y10T428/24; Y10T428/24008; Y10T428/2419; Y10T428/24215; Y10T428/24231
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
164 words
An insulating block for lining a wall of a furnace and like equipment comprising: (a) an insulating blanket folded into a plurality of adjacent layers of fiber insulating material and having folds formed between said adjacent layers alternately at outer and inner ends thereof, respectively; (b) means for attaching said insulating blanket to the wall of the furnace, said means for attaching including a support member mounted in at least one of said outer folds; (c) said insulating blanket further including inner end portions connecting adjacent layers of said blanket at inner ends thereof to form said inner folds; (d) said inner end portions having fibers transversely disposed to the direction of the heat flow towards the furnace wall to increase the insulating capacity of said insulating block; and (e) a ceramic fiber blanket mounted with said insulating blanket along said inner end portions and covering same, said ceramic fiber blanket further being attached to said insulating blanket by high temperature metal oxide thread.
Claim 2
Dependent Claim
164 words
An insulating block for lining a wall of a furnace and like equipment comprising: (a) an insulating blanket folded into a plurality of adjacent layers of fiber insulating material and having folds formed between said adjacent layers alternately at outer and inner ends thereof, respectively; (b) means for attaching said insulating blanket to the wall of the furnace, said means for attaching including a support member mounted in at least one of said outer folds; (c) said insulating blanket further including inner end portions connecting adjacent layers of said blanket at inner ends thereof to form said inner folds; (d) said inner end portions having fibers transversely disposed to the direction of the heat flow towards the furnace wall to increase the insulating capacity of said insulating block; and (e) a ceramic fiber blanket mounted with said insulating blanket along said inner end portions and covering same, said ceramic fiber blanket further being attached to said insulating blanket by high temperature metal oxide thread.
Claim 3
Dependent Claim
35 words
The structure of claim 1, wherein: a portion of said folds being transversely disposed to the remainder of said fibers and extending into other adjacent layers to bind the layers together into an insulating block.
Claim 4
Dependent Claim
19 words
The structure of claim 1, wherein: said ceramic fiber blanket has a temperature rating in excess of 2600° F.
Claim 5
Dependent Claim
22 words
The structure of claim 1, wherein: said ceramic fiber blanket has a temperature rating range of from 2600° F. to 3000° F.
Claim 6
Dependent Claim
16 words
The structure of claim 1, wherein: said thread comprises continuous filament high temperature metal oxide thread.
References Cited (Backward Citations)
US2454175A
Cited
US2694025A
Cited
US2726977A
Cited
US3523395A
Cited
US3605370A
Cited
US3819468A
Cited
US4001996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |