Dynamic valve seal arrangement
US-9255558-B2 · Feb 9, 2016 · US
Dynamic valve seal having retaining features
US10428957B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10428957-B2 |
| Application number | US-201715705844-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 15, 2017 |
| Priority date | Jan 26, 2015 |
| Publication date | Oct 1, 2019 |
| Grant date | Oct 1, 2019 |
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 dynamic seal assembly is disclosed for use in a valve having an upstream pressure side and a downstream pressure side, the dynamic seal assembly including an annular seal member having a generally C-shaped cross-section and including opposed upstream and downstream legs defining an internal cavity with an opening facing toward the upstream pressure side of the valve, wherein the upstream leg has a radial length that is greater than a radial length of the downstream leg and includes a retaining foot that extends angularly away from the upstream leg in an upstream direction at an angle of between about 0° and 90°, and a metallic spring is disposed within the internal cavity of the seal member for providing a constant sealing force to the seal member.
First claim
Opening claim text (preview).
What is claimed is: 1. A dynamic seal assembly for a valve having an upstream pressure side and a downstream pressure side, the dynamic seal assembly comprising: a) an annular seal member seated in a valve head of a piston member having a generally C-shaped cross-section and including opposed upstream and downstream legs defining an internal cavity with an opening, wherein the opening of the internal cavity faces inward from an inner periphery of the seal member, wherein the upstream leg has a radial length that is greater than a radial length of the downstream leg and includes a retaining foot that extends angularly away from the upstream leg in an upstream direction at an angle of between about 0° and 90°; and b) a metallic spring disposed within the internal cavity of the seal member for providing a constant sealing force to the seal member. 2. A dynamic seal assembly as recited in claim 1 , wherein the seal member is formed from PTFE. 3. A dynamic seal assembly as recited in claim 1 , wherein the spring member is a helically wound metallic spring.
Assignees
Inventors
Classifications
with metal springs · CPC title
Sequential · CPC title
Piston-type valves · CPC title
Seals · CPC title
Nozzles; Cleaning devices therefor · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10428957B2 cover?
- A dynamic seal assembly is disclosed for use in a valve having an upstream pressure side and a downstream pressure side, the dynamic seal assembly including an annular seal member having a generally C-shaped cross-section and including opposed upstream and downstream legs defining an internal cavity with an opening facing toward the upstream pressure side of the valve, wherein the upstream leg …
- Who is the assignee on this patent?
- Delavan Inc
- What technology area does this patent fall under?
- Primary CPC classification F02C7/232. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 01 2019 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).