Device for producing expanded granulated material
US-11859905-B2 · Jan 2, 2024 · US
Building materials and methods of manufacture
US8945295B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8945295-B2 |
| Application number | US-201213463842-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 4, 2012 |
| Priority date | May 4, 2012 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An article of manufacture comprising a building panel such as ceiling tile for example includes, in addition to any by-product perlite fines, additional perlite fines in an amount sufficient to improve the fire resistance of the building panel over the fire resistance of the building panel without the additional perlite fines. In one aspect, the additional perlite fines can comprise at least approximately 3.5% perlite fines by weight. In another aspect, the additional perlite fines can have an average diameter of approximately 23 microns or less. Methods of manufacture related to the building panel also are disclosed.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: heating perlite ore in an expansion furnace to produce coarse and medium expanded perlite and by-product perlite fines; pneumatically transporting the coarse and medium expanded perlite and by-product perlite fines to a separator at which the coarse and medium expanded perlite is separated from the by-product perlite fines; pneumatically transporting the by-product perlite fines from which the coarse and medium expanded perlite has b…
Assignees
Inventors
Classifications
- C04B20/06Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US8945295B2 cover?
- An article of manufacture comprising a building panel such as ceiling tile for example includes, in addition to any by-product perlite fines, additional perlite fines in an amount sufficient to improve the fire resistance of the building panel over the fire resistance of the building panel without the additional perlite fines. In one aspect, the additional perlite fines can comprise at least ap…
- Who is the assignee on this patent?
- Brown Martin W, Usg Interiors Llc
- What technology area does this patent fall under?
- Primary CPC classification C04B20/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).