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Apparatus for fracturing and method for producing fractured fragments
US8955780B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8955780-B2 |
| Application number | US-201213652604-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 16, 2012 |
| Priority date | Oct 21, 2011 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
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An apparatus for fracturing in which: a fracturing tooth is formed so that a base-end portion has a larger diameter than that of a top-end portion, and a tapered part is formed at the base-end portion so as to expand from the top toward the base; a fixing cover is formed along a longitudinal direction of rolls; in the fixing cover, fixing holes for fracturing teeth are formed along the longitudinal direction so that the fracturing tooth is inserted therein; each of the fixing holes has a slope in which the tapered part is in contact at a surface; a fracturing teeth unit is fixed to the roll in a state in which the top-end portion of the fracturing tooth is protruded from the fixing hole radially-outwardly of the roll and the tapered part is wedged between the slope of the fixing hole and the roll.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus for fracturing comprising: a pair of rolls which are rotated in a counter direction each other around parallel axes; and a plurality of fracturing teeth units which are provided on outer peripheral surfaces of the rolls, which are arranged along a circumferential direction of the rolls, and which have a plurality of fracturing teeth protruding radially-outwardly and fixing covers fixing the fracturing teeth on the outer peripheral surfaces of…
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- What does patent US8955780B2 cover?
- An apparatus for fracturing in which: a fracturing tooth is formed so that a base-end portion has a larger diameter than that of a top-end portion, and a tapered part is formed at the base-end portion so as to expand from the top toward the base; a fixing cover is formed along a longitudinal direction of rolls; in the fixing cover, fixing holes for fracturing teeth are formed along the longitud…
- Who is the assignee on this patent?
- 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 17 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).