Patent US4582742A successfully refreshed from Google Patents.
US4582742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-temperature fibrous insulation module
Assignee: Individual
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Filing: 1985-02-21
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Granted: 1986-04-15
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Expires: 2005-02-21
Abstract
Abstract A modular, block-shaped insulating unit for use in an insulating system for the interior of a high-temperature furnace or the like. The module comprises a plurality of short, ropelike lengths formed of braided strands, assembled in side-by-side relation to form a bundle. The strands are formed of twisted, generally parallel ceramic fibers spun into cords and assembled or braided into a rope, which is then cut into generally equal lengths. The lengths are retained in a tightly compacted condition whereby the ends of the fibers define a front planar face of the module, with the fibers being aligned in a generally perpendicular orientation relative to the front planar face.
Inventors
- 👤 Jack S. Gilhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:07
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/0003; F27D1/0006; F27D1/0009; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/166; Y10T428/24; Y10T428/24174; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24777; Y10T428/24785
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
An insulating module for lining a wall of a high-temperature furnace or the like, comprising: a plurality of lengths of rope assembled in side-by-side relation to form a building module; said lengths being formed of twisted ceramic fibers spun into strands that are plaited, twisted or braided into a rope; and means for retaining said lengths of said module in a tightly bundled condition whereby the assembled lengths define a planar front face of said module, said fibers being in a generally perpendicular orientation relative to said front planar face.
Claim 2
Dependent Claim
90 words
An insulating module for lining a wall of a high-temperature furnace or the like, comprising: a plurality of lengths of rope assembled in side-by-side relation to form a building module; said lengths being formed of twisted ceramic fibers spun into strands that are plaited, twisted or braided into a rope; and means for retaining said lengths of said module in a tightly bundled condition whereby the assembled lengths define a planar front face of said module, said fibers being in a generally perpendicular orientation relative to said front planar face.
Claim 3
Dependent Claim
33 words
An insulating module as defined in claim 1, wherein said means for retaining said lengths comprises a perforate sheet element at the rearward portion of said module to which said lengths are secured.
Claim 4
Dependent Claim
26 words
An insulating module as defined in claim 1, wherein said lengths are looped at the midpoint whereby both ends thereof lie in said planar front face.
Claim 5
Dependent Claim
21 words
An insulating module as defined in claim 3, wherein the looped portions of said lengths are stapled to said retaining means.
Claim 6
Dependent Claim
18 words
An insulating module as defined in claim 1, wherein said lengths are cut from twisted ceramic fiber rope.
Claim 7
Dependent Claim
18 words
An insulating module as defined in claim 1, wherein said lengths are cut from braided ceramic fiber rope.
Claim 8
Dependent Claim
16 words
An insulating module as defined in claim 2, wherein said perforate sheet element comprises steel screen.
Claim 9
Dependent Claim
18 words
An insulating module as defined in claim 2, wherein said perforate sheet element comprises expanded steel sheet material.
Claim 10
Dependent Claim
18 words
An insulating module as defined in claim 1, wherein said ceramic fibers comprise Al 2 SiO 3 .
Claim 11
Dependent Claim
13 words
An insulating module as defined in claim 1, wherein said module is rectangular.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |