Abrasive article having a non-uniform distribution of openings
US-10076820-B2 · Sep 18, 2018 · US
Abrasive article having a non-uniform distribution of openings
US11504822B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11504822-B2 |
| Application number | US-201816104649-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 17, 2018 |
| Priority date | Dec 31, 2011 |
| Publication date | Nov 22, 2022 |
| Grant date | Nov 22, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An abrasive article having a plurality of apertures arranged in a non-uniform distribution pattern, wherein the pattern is spiral or phyllotactic, and in particular those patterns described by the Vogel equation. Also, provided is a back-up pad having a spiral or phyllotactic patterns of air flow paths, such as in the form of open channels. The back-up pad can be specifically adapted to correspond with an abrasive article having a non-uniform distribution pattern. Alternatively, the back-up pad can be used in conjunction with conventional perforated coated abrasives. The abrasive articles having a non-uniform distribution pattern of apertures and the back-up pads can be used together as an abrasive system.
First claim
Opening claim text (preview).
What is claimed is: 1. An abrasive system comprising: a coated abrasive; and a back-up pad, wherein the coated abrasive comprises a controlled non-uniform distribution pattern of apertures, and wherein the back-up pad comprises a plurality of air flow paths disposed in a pattern adapted to correspond with the apertures of the coated abrasive, wherein of the x and y co-ordinates of the aperture pattern are transported and rotated according to equation (II), below, to determine x′ and y′ co-ordinates of the pattern of air flow paths, wherein θ is equal to π/n in radians and n is any integer: [ x ′ y ′ ] = [ cos θ - sin θ sin θ cos θ ] [ x y ] . ( II ) 2. The system of claim 1 , wherein the controlled non-uniform distribution pattern of apertures is a phyllotactic pattern. 3. The system of claim 2 , wherein the controlled non-uniform distribution pattern of apertures is the Vogel equation. 4. The system of claim 1 , wherein the pattern of air flow paths is a spiral pattern or a phyllotactic pattern.
Assignees
Inventors
Classifications
Circular back-plates for carrying flexible material · CPC title
- B24D11/00Primary
Constructional features of flexible abrasive materials; Special features in the manufacture of such materials · CPC title
- B24B55/102Primary
with rotating tools · CPC title
characterised by the shape of the lapping pad surface, e.g. grooved · CPC title
- C09K3/1409Primary
Abrasive particles per se (preparation of diamond C01B32/25) · CPC title
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- What does patent US11504822B2 cover?
- An abrasive article having a plurality of apertures arranged in a non-uniform distribution pattern, wherein the pattern is spiral or phyllotactic, and in particular those patterns described by the Vogel equation. Also, provided is a back-up pad having a spiral or phyllotactic patterns of air flow paths, such as in the form of open channels. The back-up pad can be specifically adapted to corresp…
- Who is the assignee on this patent?
- Saint Gobain Abrasives Inc, Saint Gobain Abrasifs Sa
- What technology area does this patent fall under?
- Primary CPC classification B24D11/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 22 2022 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).