Multi-speed transmission
US-9217494-B2 · Dec 22, 2015 · US
Configuration for compact planetary transmission
US8979702B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8979702-B2 |
| Application number | US-201213540308-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 2, 2012 |
| Priority date | Jul 2, 2012 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 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 compact five-speed transmission planetary hear train includes a first, second, third, and fourth planetary gear sets between an input and an output as well as first, second, and third brakes and first, second and third clutches. The first, second and third brakes and first, second and third clutches are selectively actuatable to provide five different forward speeds and four different reverse speeds between the input and the output.
First claim
Opening claim text (preview).
What is claimed is: 1. A machine power transmission comprising: a planetary gear train having exactly four planetary gear sets including a first planetary gear set having a first sun gear, first ring gear, and first carrier, a second planetary gear set having a second sun gear, second ring gear, and second carrier, a third planetary gear set having a third sun gear, third ring gear, and third carrier, and a fourth planetary gear set having a fourth sun gear, fourth ring gear, and…
Assignees
Inventors
Classifications
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F16H3/66Primary
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 US8979702B2 cover?
- A compact five-speed transmission planetary hear train includes a first, second, third, and fourth planetary gear sets between an input and an output as well as first, second, and third brakes and first, second and third clutches. The first, second and third brakes and first, second and third clutches are selectively actuatable to provide five different forward speeds and four different reverse…
- Who is the assignee on this patent?
- Koch Thomas, Floro Justin, Gross Michael, and 7 more
- What technology area does this patent fall under?
- Primary CPC classification F16H3/66. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 17 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).