Method and Control Unit for Operating a Drive Train of a Vehicle
US-2024068563-A1 · Feb 29, 2024 · US
Latch valve for actuating a transmission control element
US8960232B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8960232-B2 |
| Application number | US-201113225841-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 6, 2011 |
| Priority date | Sep 6, 2011 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 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 latch valve includes a first port containing line pressure, a second port containing control pressure, a third port located between the first and second ports, alternately connecting the first and second ports to a transmission control element, and a fourth port containing control pressure that tends to close the second port and open the first port in opposition to a spring force.
First claim
Opening claim text (preview).
The invention claimed is: 1. A latch valve, comprising: a first port for containing line pressure; a second port for containing control pressure; a third port located between and adjacent to the first and second ports, alternately connecting the first and second ports to a transmission control element; and a fourth port for containing the control pressure that tends to close the second port and open the first port in opposition to a spring force. 2. The…
Assignees
Inventors
Classifications
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F16D48/02Primary
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 US8960232B2 cover?
- A latch valve includes a first port containing line pressure, a second port containing control pressure, a third port located between the first and second ports, alternately connecting the first and second ports to a transmission control element, and a fourth port containing control pressure that tends to close the second port and open the first port in opposition to a spring force.
- Who is the assignee on this patent?
- Burkhart Robert O, Butwin John, Kinch Derek, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification F16D48/02. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 24 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).