US4330267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kiln car
Assignee: JPMorgan Chase Bank NA
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Filing: 1980-11-17
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Granted: 1982-05-18
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Expires: 2000-11-17
Abstract
Abstract A kiln car which permits a substantial increase of product throughput per car per day through a kiln is disclosed. The kiln car includes a carriage for conducting the car through the kiln and a superstructure made of reduced mass of dense refractory components. A lower load-bearing base is arranged and constructed so that the load-bearing surface lies in a plane below the plane of the bench of the kiln to provide an increased cross-sectional area for product firing. The low-mass, load-bearing base includes a plurality of spaced, parallel, dense, refractory blocks which are resistant to thermal shock and capable of withstanding temperatures of about 1300° C., and are positioned transversely on the carriage. Each block is formed having aligned and spaced bores or sockets for mounting a column of dense refractory in each bore. A plurality of elongated, dense, refractory members or spacers are positioned around the perimeter, and are mounted between the parallel-spaced, refractory blocks to lock the blocks in place. Dense, refractory, product-supporting members are disposed in spaced, parallel relation and are supported by the parallel-positioned, refractory blocks to provide a product-supporting surface. A low density low heat capacity, refractory material is interspersed between the parallel-spaced, refractory blocks below the product-supporting members to provide a base of low mass having reduced thermal conductivity, so that heat damage to the carriage assembly, including the wheels and bearings, is obviated.
Inventors
- 👤 Russell K. Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:38
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/12; F27D3/123
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
213 words
In a kiln car having a carriage assembly including wheels for transporting the kiln car and product to be fired through a high temperature kiln, said kiln having a bench therein; a dense refractory superstructure of reduced mass mounted on said carriage assembly, a layer of insulating refractory forming a thermal barrier mounted on the upper surface of said carriage assembly, on which said superstructure is mounted; a load-bearing base of dense refractory of reduced mass and low heat capacity, having product-supporting means to provide a load bearing surface, the plane of which is adapted to lie below the plane of the bench of said kiln, to provide an increased cross-sectional area for product firing; the improvement comprising: said load-bearing base including a plurality of reduced mass, dense, refractory blocks mounted transversely on said insulating refractory in spaced, parallel relation and having means for supporting an upper load-bearing base; a plurality of spacer blocks disposed between said parallel, spaced blocks in interlocked relation and forming a perimeter of refractories around said carriage assembly; a low density, low heat capacity, thermal-insulating material is positioned interiorly of said perimeter of refractory blocks, filling the spaces between said refractory blocks and said product-supporting means to form a load-bearing base of reduced mass and low heat capacity.
Claim 2
Dependent Claim
213 words
In a kiln car having a carriage assembly including wheels for transporting the kiln car and product to be fired through a high temperature kiln, said kiln having a bench therein; a dense refractory superstructure of reduced mass mounted on said carriage assembly, a layer of insulating refractory forming a thermal barrier mounted on the upper surface of said carriage assembly, on which said superstructure is mounted; a load-bearing base of dense refractory of reduced mass and low heat capacity, having product-supporting means to provide a load bearing surface, the plane of which is adapted to lie below the plane of the bench of said kiln, to provide an increased cross-sectional area for product firing; the improvement comprising: said load-bearing base including a plurality of reduced mass, dense, refractory blocks mounted transversely on said insulating refractory in spaced, parallel relation and having means for supporting an upper load-bearing base; a plurality of spacer blocks disposed between said parallel, spaced blocks in interlocked relation and forming a perimeter of refractories around said carriage assembly; a low density, low heat capacity, thermal-insulating material is positioned interiorly of said perimeter of refractory blocks, filling the spaces between said refractory blocks and said product-supporting means to form a load-bearing base of reduced mass and low heat capacity.
Claim 3
Dependent Claim
28 words
The kiln car of claim 1, wherein said product support means is a dense, refractory plate supported between said transversely-spaced, refractory blocks and spaced from said insulating bricks.
Claim 4
Dependent Claim
26 words
The kiln car as set forth in claim 1, wherein said transverse, dense, refractory blocks are formed having a socket therein for mounting said support means.
Claim 5
Dependent Claim
20 words
The kiln car as set forth in claim 2, wherein said support means is a tubular column of dense refractory.
Claim 6
Dependent Claim
15 words
The kiln car as set forth in claim 3, wherein said tubular column is mullite.
Claim 7
Dependent Claim
23 words
The kiln car of claim 1, wherein said low density, low heat capacity, thermal-insulating material is in the form of an alumina fiber.
Claim 8
Dependent Claim
34 words
The kiln car of claim 1, wherein said perimeter of refractory blocks include an outwardly-extending horizontal flange, forming a longitudinally-extending rail to provide a barrier to prevent heat from circulating around said carriage assembly.
Claim 9
Dependent Claim
267 words
In a kiln car having a carriage assembly including wheels for transporting the kiln car and product to be fired through a high temperature kiln, said kiln having a bench therein; a dense refractory superstructure of reduced mass mounted on said carriage assembly, a layer of insulating refractory forming a thermal barrier mounted on the upper surface of said carriage assembly, on which said lower load bearing base is mounted; a lower load-bearing base of dense refractory of reduced mass and low heat capacity, having product-supporting means to provide a load-bearing surface, the plane of which is adapted to lie below the plane of the bench of said kiln, to provide an increased cross-sectional area for product firing; the improvement comprising said lower load-bearing base including a plurality of reduced mass, dense, refractory blocks mounted transversely on said insulating refractory in spaced, parallel relation; an upper load-bearing base having support means mounted on said lower load-bearing base; a plurality of spacer blocks disposed between said parallel, spaced blocks in interlocked relation and forming a perimeter of refractories around said carriage assembly; a low density, low heat capacity, thermal-insulating material is positioned interiorly of said perimeter of refractory blocks, filling the spaces between said refractory blocks and said product-supporting means to form a lower load-bearing base of reduced mass and low heat capacity; said transversely-spaced blocks having spaced, aligned sockets formed therein; said upper load-bearing base supporting means including a plurality of tubular columns of dense refractory mounted in said socket; and a plurality of product-supporting plates mounted on said tubular columns to form said upper load-bearing base.
Claim 10
Dependent Claim
267 words
In a kiln car having a carriage assembly including wheels for transporting the kiln car and product to be fired through a high temperature kiln, said kiln having a bench therein; a dense refractory superstructure of reduced mass mounted on said carriage assembly, a layer of insulating refractory forming a thermal barrier mounted on the upper surface of said carriage assembly, on which said lower load bearing base is mounted; a lower load-bearing base of dense refractory of reduced mass and low heat capacity, having product-supporting means to provide a load-bearing surface, the plane of which is adapted to lie below the plane of the bench of said kiln, to provide an increased cross-sectional area for product firing; the improvement comprising said lower load-bearing base including a plurality of reduced mass, dense, refractory blocks mounted transversely on said insulating refractory in spaced, parallel relation; an upper load-bearing base having support means mounted on said lower load-bearing base; a plurality of spacer blocks disposed between said parallel, spaced blocks in interlocked relation and forming a perimeter of refractories around said carriage assembly; a low density, low heat capacity, thermal-insulating material is positioned interiorly of said perimeter of refractory blocks, filling the spaces between said refractory blocks and said product-supporting means to form a lower load-bearing base of reduced mass and low heat capacity; said transversely-spaced blocks having spaced, aligned sockets formed therein; said upper load-bearing base supporting means including a plurality of tubular columns of dense refractory mounted in said socket; and a plurality of product-supporting plates mounted on said tubular columns to form said upper load-bearing base.
References Cited (Backward Citations)
US1473152A
Cited
US3759661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-17 | 1985-11-16 | 1986-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-17 | 1989-11-16 | 1990-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-17 | 1993-11-16 | 1994-05-18 | $7700.00 | Window Closed / Lapsed |