Filter Element and Method of Manufacturing a Filter Element
US-2018001236-A1 · Jan 4, 2018 · US
3D printed filter center tube
US11020690B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11020690-B2 |
| Application number | US-201816211395-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 6, 2018 |
| Priority date | Dec 6, 2018 |
| Publication date | Jun 1, 2021 |
| Grant date | Jun 1, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A filter center tube includes a plurality of layers of solidified material including a first layer with a first undulating strip of solidified material extending in a first predetermined direction, and a second layer with a second undulating strip of solidified material extending in a second predetermined direction. The first layer is in contact with the second layer and the first predetermined direction is not parallel with the second predetermined direction, forming a plurality of pores therebetween.
First claim
Opening claim text (preview).
What is claimed is: 1. A filter center tube comprising: a plurality of layers of solidified material including a first layer with a first undulating strip of solidified material extending in a first predetermined direction; and a second layer with a second undulating strip of solidified material extending in a second predetermined direction; wherein the first layer is in contact with the second layer and the first predetermined direction is not parallel with the second predetermined direction, forming a plurality of pores therebetween, and the first undulating strip of solidified material has a trapezoidal pattern with a pair of non-parallel legs, and the second undulating strip of solidified material has a square pattern with a pair of parallel legs. 2. The filter center tube of claim 1 , wherein the first predetermined direction is perpendicular or tangential to the second predetermined direction. 3. The filter center tube of claim 2 wherein the trapezoidal pattern at least partially defines a plurality of pores each including a pore dimension that decreases in size along the second predetermined direction. 4. The filter center tube of claim 3 wherein the filter center tube defines a third predetermined direction and the pore dimension varies in size along the third predetermined direction. 5. The filter center tube of claim 2 wherein the filter center tube includes a cylindrical annular configuration defining an outer annular region and an inner annular region and the plurality of layers contact each other define a plurality of pores therebetween.
Assignees
Inventors
Classifications
- B01D29/111Primary
Making filtering elements · CPC title
- B01D29/15Primary
arranged for inward flow filtration · CPC title
for controlling or regulating additive manufacturing processes · CPC title
Materials specially adapted for additive manufacturing · CPC title
Processes of additive manufacturing · CPC title
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Frequently asked questions
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- What does patent US11020690B2 cover?
- A filter center tube includes a plurality of layers of solidified material including a first layer with a first undulating strip of solidified material extending in a first predetermined direction, and a second layer with a second undulating strip of solidified material extending in a second predetermined direction. The first layer is in contact with the second layer and the first predetermined…
- Who is the assignee on this patent?
- Caterpillar Inc
- What technology area does this patent fall under?
- Primary CPC classification B01D29/111. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jun 01 2021 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).