Check valve assembly
US-9347578-B2 · May 24, 2016 · US
Cone valve
US2017314690A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017314690-A1 |
| Application number | US-201515520798-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 1, 2015 |
| Priority date | Nov 21, 2014 |
| Publication date | Nov 2, 2017 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A cone valve of the present invention enables to extend a lifespan more than a conventional cone valve even if it is used as a check valve when feeding slurry containing highly abrasive coarse particles. A cone valve ( 1 ) used as a check valve when feeding slurry, comprising at least a valve body ( 11 ), a valve seat ( 13 ), and a spring ( 14 ) incorporated to make the valve body ( 11 ) contact the valve seat ( 14 ), wherein an entire length of the spring ( 14 ) is at least shorter than a stroke length of the valve body ( 11 ).
First claim
Opening claim text (preview).
1 . A cone valve used as a check valve when feeding slurry, comprising at least a valve body, a valve seat, and a spring incorporated to make the valve body contact the valve seat, wherein an entire length of the spring is at least shorter than a stroke length of the valve body. 2 . The cone valve according to claim 1 , wherein the slurry is slurry of nickel oxide ore. 3 . The cone valve according to claim 1 , wherein shapes of contacting parts of the valve body and the valve seat are formed to be flat.
Assignees
Inventors
Classifications
- F16K15/063Primary
the valve being loaded by a spring · CPC title
with acids or salt solutions except ammonium salts solutions · CPC title
contacting in the closed position, over a substantial axial length, a seat surface having the same inclination · CPC title
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Frequently asked questions
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- What does patent US2017314690A1 cover?
- A cone valve of the present invention enables to extend a lifespan more than a conventional cone valve even if it is used as a check valve when feeding slurry containing highly abrasive coarse particles. A cone valve ( 1 ) used as a check valve when feeding slurry, comprising at least a valve body ( 11 ), a valve seat ( 13 ), and a spring ( 14 ) incorporated to make the valve body ( 11 ) contac…
- Who is the assignee on this patent?
- Sumitomo Metal Mining Co
- What technology area does this patent fall under?
- Primary CPC classification F16K15/063. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Nov 02 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).