Acoustic insulation assembly for an auxiliary power unit having a centrifugal compressor
US-2024200493-A1 · Jun 20, 2024 · US
DC power architecture for remote APU start
US9024467B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9024467-B2 |
| Application number | US-201213526553-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 19, 2012 |
| Priority date | Jun 19, 2012 |
| Publication date | May 5, 2015 |
| Grant date | May 5, 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 circuit and methods for remote auxiliary power unit startup are presented. A first node is coupled to a ground by action of a momentary switch to initiate an activation, and the first node is coupled to the ground by action of a latching relay in response to the activation. An auxiliary power unit is coupled to a hot battery by action of a bi-polar relay in response to the activation.
First claim
Opening claim text (preview).
The invention claimed is: 1. A remote auxiliary power unit startup circuit comprising: a momentary switch operable to couple a first node to a ground to initiate an activation; a latching relay operable to: couple the first node to the ground in response to the activation; and decouple the first node from the ground in response to a deactivation of a second node; a bi-polar relay operable to couple an auxiliary power unit to: a hot battery in response to the activation;…
Assignees
Inventors
Classifications
- B64D41/00Primary
Operations & Transport · mapped topic
Mechanical Engineering · mapped topic
Operations & Transport · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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 US9024467B2 cover?
- A circuit and methods for remote auxiliary power unit startup are presented. A first node is coupled to a ground by action of a momentary switch to initiate an activation, and the first node is coupled to the ground by action of a latching relay in response to the activation. An auxiliary power unit is coupled to a hot battery by action of a bi-polar relay in response to the activation.
- Who is the assignee on this patent?
- Nguyen Phuoc D, Boeing Co
- What technology area does this patent fall under?
- Primary CPC classification B64D41/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 05 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).