Magnetic rail brake device

US9358992B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9358992-B2
Application numberUS-201314404218-A
CountryUS
Kind codeB2
Filing dateMay 28, 2013
Priority dateJun 1, 2012
Publication dateJun 7, 2016
Grant dateJun 7, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A magnetic rail brake device includes a magnetic main part and pole shoes with friction surfaces. The friction surfaces of the pole shoes are made of the material of the main part in first regions and of a different material in second regions.

First claim

Opening claim text (preview).

The invention claimed is: 1. A magnetic rail brake device comprising: a magnetic base body which has pole shoes with friction surfaces, wherein the friction surfaces of the pole shoes in first regions are composed of a different material than the friction surfaces in second regions of the pole shoes, wherein the materials of the first and second regions are arranged distributed differently on a first pole shoe than on a second pole shoe of the magnetic rail brake device. 2. The magnetic rail brake device as claimed in claim 1 , wherein the friction surfaces of the pole shoes in the first regions are made of the material of the base body. 3. The magnetic rail brake device as claimed in claim 1 , wherein the material of the first regions differs from the material of the base body. 4. The magnetic rail brake device as claimed in claim 1 , wherein the material of the first regions is steel, and that the material of the second regions is a sintered material. 5. The magnetic rail brake device as claimed in claim 1 , wherein the materials of the first and second regions have different magnetic properties. 6. The magnetic rail brake device as claimed in claim 1 , wherein the materials of the first and second regions are arranged distributed one behind the other in the longitudinal direction (x) of the pole shoes. 7. The magnetic rail brake device as claimed in claim 1 , wherein the materials of the first and second regions have different lengths in the longitudinal direction (x) of the pole shoes. 8. The magnetic rail brake device as claimed in claim 1 , wherein the friction surfaces of the second regions further comprise regions of at least two different materials. 9. The magnetic rail brake device as claimed in claim 1 , wherein the materials of the first and second regions are embodied in a strip shape, and in that the strips are arranged inclined at an acute angle (α) with respect to the longitudinal direction (x) of the pole shoes. 10. The magnetic rail brake device as claimed in claim 1 , wherein the material of the second region is in the form of a round blank. 11. The magnetic rail brake device as claimed in claim 1 , wherein the ratio between the friction surfaces made of the different materials varies in the longitudinal direction (x) of the rail. 12. A magnetic rail brake device comprising: a magnetic base body which has pole shoes with friction surfaces, wherein the friction surfaces in first regions of the pole shoes are composed of a different material than the friction surfaces in second regions of the pole shoes, wherein the friction surfaces of the second regions further comprise regions of at least two different materials.

Assignees

Inventors

Classifications

  • B61H7/08Primary

    electromagnetically operated · CPC title

  • acting on electro-magnetic brakes (combined with fluid-pressure brake systems B60T13/667) · CPC title

  • directly on road (portable devices, e.g. chocks B60T3/00) · CPC title

  • Brakes acting on a linearly moving member · CPC title

  • using electromagnets · CPC title

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Frequently asked questions

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What does patent US9358992B2 cover?
A magnetic rail brake device includes a magnetic main part and pole shoes with friction surfaces. The friction surfaces of the pole shoes are made of the material of the main part in first regions and of a different material in second regions.
Who is the assignee on this patent?
Knorr Bremse Ges Mit Beschränkter Haftung, Knorr Bremse Systeme
What technology area does this patent fall under?
Primary CPC classification B61H7/08. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jun 07 2016 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).