Patent US4389190A successfully refreshed from Google Patents.
US4389190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support of suspension of insulating material
Assignee: Individual
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Filing: 1981-08-18
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Granted: 1983-06-21
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Expires: 2001-08-18
Abstract
Abstract When coating the inner surfaces of a furnace with strips of refractory mineral material or synthetic material such as felt, one often uses anchors which are welded to the shell of the furnace, which anchors are provided with recesses such that little plates can be secured to the anchor after having made a quarter of a revolution. These anchors represent energy loss and it is a time consuming job to weld all those anchors. This is eliminated by using metal strips with recesses which are punched out to at least one side. One can make now felt packages and some strips are provided with slots so that they can simply be attached to the furnace frame. If the side walls are coated by vertical packages, there also is no sag under the influence of their own weight.
Inventors
- 👤 Theodor J. Sevink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:50
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
150 words
An arrangement for mounting insulatory lining blanket strips within a high temperature furnace, comprising: (a) a strip of insulatory furnace lining blanket formed of a refractory synthetic material such as felt, said strip having a generally solid rectangular shape, (b) a support frame including a pair of elongated stainless steel angle irons fixedly disposed parallel to each other and spaced apart a distance approximately equal to the length of said strip, (c) an elongated stainless steel anchor plate having projections thereon extending into said lining blanket strip across the length thereof and along an edge intended to face outwardly from the interior of the furnace, and (d) means defining slidable slot and rail connections between opposite ends of said anchor plate and said respective angle irons, whereby a plurality of lining blanket strips may be slidably mounted on said angle irons in stacked abutment to define an overall furnace lining.
Claim 2
Dependent Claim
150 words
An arrangement for mounting insulatory lining blanket strips within a high temperature furnace, comprising: (a) a strip of insulatory furnace lining blanket formed of a refractory synthetic material such as felt, said strip having a generally solid rectangular shape, (b) a support frame including a pair of elongated stainless steel angle irons fixedly disposed parallel to each other and spaced apart a distance approximately equal to the length of said strip, (c) an elongated stainless steel anchor plate having projections thereon extending into said lining blanket strip across the length thereof and along an edge intended to face outwardly from the interior of the furnace, and (d) means defining slidable slot and rail connections between opposite ends of said anchor plate and said respective angle irons, whereby a plurality of lining blanket strips may be slidably mounted on said angle irons in stacked abutment to define an overall furnace lining.
Claim 3
Dependent Claim
47 words
An arrangement according to claim 1, wherein said anchor plate has a short folded edge to define an L-shape, said angle irons each have an inwardly extending rail, and a slot is provided in each end of said anchor plate to slidably accommodate an angle iron rail.
Claim 4
Dependent Claim
19 words
An arrangement according to claims 1 or 2, wherein said anchor plate projections are laterally extending triangular punch outs.
Claim 5
Dependent Claim
36 words
An arrangement according to claims 1 or 2, wherein said anchor plate is wrapped around said outwardly facing edge of said lining blanket strip, and said projections are toothed crenations along longitudinal edges of said plate.
Claim 6
Dependent Claim
18 words
An arrangement according to claim 2, wherein overlapping folded edges of two adjacent anchor plates are welded together.
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) | 1986-06-20 | 1986-12-20 | 1987-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-20 | 1990-12-20 | 1991-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-20 | 1994-12-20 | 1995-06-21 | $7700.00 | Window Closed / Lapsed |