US4148165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire brick unit
Assignee: Krosaki Harima Corp
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Filing: 1977-11-18
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Granted: 1979-04-10
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Expires: 1997-11-18
Abstract
Abstract A fire brick unit or assembly is proposed which has a pile of fire bricks laid one upon another on a supporting member to facilitate the building and dismantling of industrial furnaces. It further includes suspending members on which can be lifted with a crane or the like. There is no necessity of laying or removing fire bricks one by one.
Inventors
- 👤 Akira Watanabe
- 👤 Yukio Kusaka
- 👤 Shigeo Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:01
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/04; F27D1/06; F27D1/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
105 words
A fire brick unit comprising: a plurality of stacked fire bricks, said bricks being stacked side by side in rows, one row on top of the other; a single support means extending underneath each brick in the bottom now of said stacked fire bricks for supporting said stacked fire bricks thereon; suspending means connected to said support means and on the outside of said stacked fire bricks for lifting and carrying said support means and said fire bricks thereon; and binding means around said stacked fire bricks for binding said fire bricks together with said support means and said suspending means into a single unit.
Claim 2
Dependent Claim
105 words
A fire brick unit comprising: a plurality of stacked fire bricks, said bricks being stacked side by side in rows, one row on top of the other; a single support means extending underneath each brick in the bottom now of said stacked fire bricks for supporting said stacked fire bricks thereon; suspending means connected to said support means and on the outside of said stacked fire bricks for lifting and carrying said support means and said fire bricks thereon; and binding means around said stacked fire bricks for binding said fire bricks together with said support means and said suspending means into a single unit.
Claim 3
Dependent Claim
38 words
A unit as claimed in claim 1, wherein said support means is a single L-shaped bar extending underneath each brick forming the bottom row of said fire bricks and extending upward along the edges of said fire bricks.
Claim 4
Dependent Claim
29 words
A unit as claimed in claim 1, wherein each brick on the bottom row of fire bricks is partially chamfered at the portion thereof resting on said support means.
Claim 5
Dependent Claim
19 words
A unit as claimed in claim 1, wherein said suspending means is a chain connected to said support means.
Claim 6
Dependent Claim
28 words
A unit as claimed in claim 1, wherein said support means and said suspending means are provided at both the front and rear of said stacked fire bricks.
References Cited (Backward Citations)
CA537371A
Cited
US1875667A
Cited
DE598730C
Cited
US2144597A
Cited
FR1184625A
Cited
AT222790B
Cited
US3380211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |