Gasket
US-D997310-S · Aug 29, 2023 · US
Seal member
US12287033B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12287033-B2 |
| Application number | US-202117914540-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 14, 2021 |
| Priority date | Mar 30, 2020 |
| Publication date | Apr 29, 2025 |
| Grant date | Apr 29, 2025 |
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 gasket 4 includes: a cylindrical body portion 10 having a communication hole 10 a for providing communication between flow passage holes 2 c, 2 c formed in two fluid devices 2, 2 , respectively; and an annular primary sealing portion 11 projecting from a radially inner side of an axially outer end portion of the body portion 10 toward an axially outer side and to be press-fitted into an annular primary sealing groove 2 d formed in each fluid device 2 . In a state before the primary sealing portion 11 is press-fitted into the primary sealing groove 2 d , an entirety of an inner circumferential surface 10 b of the body portion 10 is formed such that a diameter thereof gradually decreases from both axially outer ends thereof toward an axially inner side.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sealing member for sealing and connecting flow passage holes formed in two fluid devices, respectively, the sealing member comprising: a cylindrical body portion having a communication hole for providing communication between the flow passage holes; and an annular sealing portion projecting from a radially inner side of an axially outer end portion of the body portion toward an axially outer side and to be press-fitted into an annular sealing groove formed at a connection end portion of the flow passage hole of one of the fluid devices, wherein in a pre-press-fit state which is a state before the sealing portion is press-fitted into the sealing groove, an entirety of an inner circumferential surface of the body portion is formed by a curved line projecting most radially inward at a center in an axial direction thereof in an axial cross-sectional view such that a diameter thereof gradually decreases from both axially outer ends thereof toward an axially inner side, and a radius of curvature of the curved line is set such that the curved line becomes bent and deformed toward a radially outer side to be a straight line extending in the axial direction in an axial cross-sectional view in a state where the sealing portion is press-fitted into the sealing groove. 2. The sealing member according to claim 1 , wherein, in the pre-press-fit state, the axially outer end portion of the inner circumferential surface of the sealing portion is formed such that the diameter thereof gradually decreases from an axially outer end thereof toward an axially inner end thereof. 3. The sealing member according to claim 2 , wherein a degree of diameter decrease of the axially outer end portion of the inner circumferential surface of the sealing portion is larger than a degree of diameter decrease of the inner circumferential surface of the body portion. 4. The sealing member according to claim 1 , wherein, in the pre-press-fit state, an entirety of the inner circumferential surface of the sealing portion is formed such that the diameter thereof gradually decreases from an axially outer end thereof toward an axially inner end thereof.
Assignees
Inventors
Classifications
with sealing rings arranged between the end surfaces of the pipes or flanges or arranged in recesses in the pipe ends or flanges · CPC title
homogeneous · CPC title
made exclusively of a material other than metal · CPC title
- F16J15/104Primary
characterised by structure · CPC title
- F16J15/10Primary
with non-metallic packing · 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 US12287033B2 cover?
- A gasket 4 includes: a cylindrical body portion 10 having a communication hole 10 a for providing communication between flow passage holes 2 c, 2 c formed in two fluid devices 2, 2 , respectively; and an annular primary sealing portion 11 projecting from a radially inner side of an axially outer end portion of the body portion 10 toward an axially outer side and to be pres…
- Who is the assignee on this patent?
- Nippon Pillar Packing
- What technology area does this patent fall under?
- Primary CPC classification F16J15/104. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 29 2025 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).