Apparatus and method for variable sizing of particulates
US-10857539-B2 · Dec 8, 2020 · US
Method for producing fractured fragments of polycrystalline silicon
US8944353B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944353-B2 |
| Application number | US-201213431005-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 27, 2012 |
| Priority date | Apr 5, 2011 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method for producing fractured fragments of polycrystalline silicon having a fracturing process fracturing fragments of polycrystalline silicon between a pair of rolls which are rotated in a counter direction each other around parallel axes, in which: the rolls have a plurality of fracturing teeth protruding radially-outwardly from outer peripheral surfaces thereof; the fracturing teeth have spherical top surfaces and conical or cylindrical side surfaces; the fracturing process is performed in fracturing ratio of equal to or more than 1.0 to less than 1.5, and the fracturing ratio is specified by a maximum length of polycrystalline silicon before fracturing with respect to a facing distance between the top surfaces of the fracturing teeth at a facing part of the rolls.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for producing fractured fragments of polycrystalline silicon comprising a step of fracturing fragments of polycrystalline silicon between a pair of rolls which are rotated in a counter direction each other around parallel axes, wherein: the rolls have a plurality of fracturing teeth protruding radially-outwardly from outer peripheral surfaces thereof; the fracturing teeth have semi-spherical top surfaces and conical or cylindrical side surface…
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8944353B2 cover?
- A method for producing fractured fragments of polycrystalline silicon having a fracturing process fracturing fragments of polycrystalline silicon between a pair of rolls which are rotated in a counter direction each other around parallel axes, in which: the rolls have a plurality of fracturing teeth protruding radially-outwardly from outer peripheral surfaces thereof; the fracturing teeth have …
- Who is the assignee on this patent?
- Sato Shigeru, Sato Motoki, Mitsubishi Materials Corp
- What technology area does this patent fall under?
- Primary CPC classification B02C4/08. Mapped technology areas include Operations & Transport.
- 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).