Back-up ring system for elastomeric sealing elements
US-2024060386-A1 · Feb 22, 2024 · US
Damper device
US9182003B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9182003-B2 |
| Application number | US-201213978817-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 6, 2012 |
| Priority date | Jan 11, 2011 |
| Publication date | Nov 10, 2015 |
| Grant date | Nov 10, 2015 |
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Abstract
Official abstract text for this publication.
A damper device includes an inner part having a cylindrical shape; an outer part including an annular space with a bottom to rotatably or relatively rotatably house the inner part from one cylinder end side; and a viscous fluid filled in the annular space. An outer side of the inner part is formed with a circular groove to fit an outside seal ring. Also, an inner side of the inner part is formed with a circular step surface positioned closer to the one cylinder end side than the circular groove, and positioning an inside seal ring. A depth of the circular groove has a dimension approximately half a thickness of the inner part at a portion forming the circular groove.
First claim
Opening claim text (preview).
What is claimed is: 1. A damper device, comprising: an inner part having a cylindrical shape; and including a circular groove formed on an outer side thereof, a first circular step formed on a side closer to a lower end of the inner part than the circular groove on an inner side of the inner part, a circular convex portion formed between an upper end thereof and the circular groove on the outer side thereof and having first inclined surfaces protruding radially outwardly toward a…
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- What does patent US9182003B2 cover?
- A damper device includes an inner part having a cylindrical shape; an outer part including an annular space with a bottom to rotatably or relatively rotatably house the inner part from one cylinder end side; and a viscous fluid filled in the annular space. An outer side of the inner part is formed with a circular groove to fit an outside seal ring. Also, an inner side of the inner part is forme…
- Who is the assignee on this patent?
- Ono Takashi, Nifco Inc
- What technology area does this patent fall under?
- Primary CPC classification F16J15/18. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 10 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).