Air permeable vent filter, and headlight assembly comprising same
US-10500534-B2 · Dec 10, 2019 · US
Filtering device, in particular diesel particulate filter
US8992652B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8992652-B2 |
| Application number | US-201213716715-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 17, 2012 |
| Priority date | Dec 16, 2011 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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A filtering device features a ceramic filter body for filtering a fluid flow, the filter body consisting of a wavy layer and a flat layer and the wavy and flat layer being wound in a spiral-shaped manner. The wave length of the waves increases from the inside to the outside with increasing distance to the longitudinal axis of the filter body such that the wave troughs and the wave peaks of at least two radially adjacent windings each lie on a common radial plane.
First claim
Opening claim text (preview).
The invention claimed is: 1. A diesel particulate filter, comprising: a ceramic spirally wound filter body for filtering a fluid flow, the filter body having a longitudinal axis extending through a center of the filter body, the ceramic filter body including a wavy layer of filter material having a porosity and forming wave troughs and wave peaks; and a flat layer of filter material having a porosity; and wherein the wavy layer and the flat layer are overlaid onto each other…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B01D46/528Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US8992652B2 cover?
- A filtering device features a ceramic filter body for filtering a fluid flow, the filter body consisting of a wavy layer and a flat layer and the wavy and flat layer being wound in a spiral-shaped manner. The wave length of the waves increases from the inside to the outside with increasing distance to the longitudinal axis of the filter body such that the wave troughs and the wave peaks of at l…
- Who is the assignee on this patent?
- Mann & Hummel Gmbh
- What technology area does this patent fall under?
- Primary CPC classification B01D46/528. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 31 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).