Multi-speed transmission
US-9217494-B2 · Dec 22, 2015 · US
Multi-speed transmission
US8992372B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8992372-B2 |
| Application number | US-201313847190-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 19, 2013 |
| Priority date | Apr 2, 2012 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 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 transmission has an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The coupling members continuously interconnect a member of the first, second, third and fourth planetary gear sets with another member of the first, second, third and fourth planetary gear sets. The torque transmitting devices include clutches and brakes selectively engageable to interconnect at least one of the first, second and third members with at least one other of the first, second, third members and a stationary member and are actuatable in combinations of three to establish a plurality of forward gear ratios and one reverse gear ratio.
First claim
Opening claim text (preview).
The invention claimed is: 1. A transmission comprising: an input member; an output member; first, second, third and fourth planetary gear sets each having first, second and third members, and wherein the output member is continuously connected for common rotation with the second member of the third planetary gear set and the second member of the first planetary gear set; a plurality of interconnecting members each continuously interconnecting one of the first, second, and th…
Assignees
Inventors
Classifications
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F16H3/66Primary
Mechanical Engineering · 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 US8992372B2 cover?
- A transmission has an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The coupling members continuously interconnect a member of the first, second, third and fourth planetary gear sets with another member of the first, secon…
- Who is the assignee on this patent?
- Gm Global Tech Operations Inc, Gm Global Tech Operations Inc
- 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 31 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).