Direct current breaker based on vacuum magnetic blowout transfer and breaking method thereof
US-2020343062-A1 · Oct 29, 2020 · US
Locomotive positive power bus contactor method of assembly
US8933359B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8933359-B2 |
| Application number | US-201213550726-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 17, 2012 |
| Priority date | Dec 29, 2011 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method of manufacturing a power contactor from an existing contactor having a magnetic amplifier that comprises a blowout coil and a ferromagnetic core, and an arc chute for extinguishing an arc generated by opening the existing contactor under a current load is disclosed. The method includes removing a bolt assembly from the existing contactor and at least one side plate from the existing contactor. The method also includes removing the ferromagnetic core from the existing contactor.
First claim
Opening claim text (preview).
What is claimed is: 1. A power contactor comprising: a stationary bus bar; a stationary contact connected to the stationary bus bar; a movable contact capable of moving into engagement with the stationary contact; and a blowout coil, one end of which is connected to the stationary bus bar, the blowout coil comprising a plurality of helical turns of conductive material surrounding a nonmagnetic core, the nonmagnetic core serving as a replacement for a ferromagnetic core.…
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8933359B2 cover?
- A method of manufacturing a power contactor from an existing contactor having a magnetic amplifier that comprises a blowout coil and a ferromagnetic core, and an arc chute for extinguishing an arc generated by opening the existing contactor under a current load is disclosed. The method includes removing a bolt assembly from the existing contactor and at least one side plate from the existing co…
- Who is the assignee on this patent?
- Kral John Franklin, Beltramin Sidarta Fornari, Progress Rail Services Corp
- What technology area does this patent fall under?
- Primary CPC classification H01H33/18. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 13 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).