System And Method For Making A Structured Material
US-2024424553-A1 · Dec 26, 2024 · US
Tapered ferrite core, its production method and apparatus, and inductance device comprising it
US11670450B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11670450-B2 |
| Application number | US-201816619810-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 5, 2018 |
| Priority date | Jun 6, 2017 |
| Publication date | Jun 6, 2023 |
| Grant date | Jun 6, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A tapered ferrite core having a solid or hollow cylindrical shape with larger length than outer diameter, and comprising a ground taper portion in at least one end portion, the taper portion having ground streaks extending in the longitudinal direction of the ferrite core, can be formed by centerless-grinding a rotating ferrite core by a rotating grinder.
First claim
Opening claim text (preview).
What is claimed is: 1. A tapered ferrite core having a solid or hollow cylindrical shape with larger length than outer diameter; said ferrite core having a ground taper portion in at least one end portion; and said taper portion having ground streaks extending in the longitudinal direction of the ferrite core. 2. The tapered ferrite core according to claim 1 , wherein said ferrite core has no defects due to granule boundaries. 3. The tapered ferrite core according to claim 1 , wherein said taper portion is constituted by pluralities of worked surfaces having different tapering ratios. 4. A tapered ferrite core having a solid or hollow cylindrical shape with larger length than outer diameter; said ferrite core having a ground taper portion in at least one end portion; and said taper portion having ground streaks extending in the longitudinal direction of the ferrite core and radially isotropically extending from a center axis of the ferrite core.
Assignees
Inventors
Classifications
- H01F3/08Primary
made from powder (powder coatings on sheets H01F3/02; on strips or ribbons H01F3/04; on wires H01F3/06) · CPC title
Magnetic cores · CPC title
for grinding conical surfaces · CPC title
Single-purpose machines or devices · CPC title
involving work-supporting means carrying several workpieces to be operated on in succession · CPC title
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Frequently asked questions
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- What does patent US11670450B2 cover?
- A tapered ferrite core having a solid or hollow cylindrical shape with larger length than outer diameter, and comprising a ground taper portion in at least one end portion, the taper portion having ground streaks extending in the longitudinal direction of the ferrite core, can be formed by centerless-grinding a rotating ferrite core by a rotating grinder.
- Who is the assignee on this patent?
- Proterial Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01F3/08. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 06 2023 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).