System Having a Device for Producing a Pipeline Unit and Method for Producing a Pipeline Unit
US-2024167590-A1 · May 23, 2024 · US
Spiral wound gasket
US2019011048A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019011048-A1 |
| Application number | US-201816023615-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 29, 2018 |
| Priority date | Jul 6, 2017 |
| Publication date | Jan 10, 2019 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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where a bending angle constituting the bent portion is α (°), and a radius of curvature of the bent portion is r (mm).
First claim
Opening claim text (preview).
1 . A spiral wound gasket in which a laminate of a hoop member made of metal and a filler member is wound and integrated so as to have an opening at the center, wherein the hoop member has a cross-sectional shape with a bent portion, and V expressed by an equation (I) below is 0.5 to 2.4: V = 1 r cos ( α 2 ) , ( I ) where a bending angle of the hoop member at the bent portion is α (°), and a radius of curvature of the hoop member at the bent portion is r (mm). 2 . The spiral wound gasket of claim 1 , wherein the bending angle α of the hoop member at the bent portion is 80° to 140°. 3 . The spiral wound gasket of claim 1 , wherein the radius of curvature r of the hoop member at the bent portion is 0.2 mm to 1.2 mm. 4 . The spiral wound gasket of claim 1 , wherein the hoop member is composed of stainless steel, and the filler member has a density of 1 g/cm 3 to 1.2 g/cm 3 and is composed of expanded graphite. 5 . The spiral wound gasket of claim 1 , wherein the spiral wound gasket as a whole has a density of 2.1 g/cm 3 to 2.4 g/cm 3 . 6 . The spiral wound gasket of claim 1 , wherein when the spiral wound gasket is compressed with a surface pressure of 10 MPa, a bending angle α′ of the hoop member at the bent portion that is compressed is 40° to 120°, and a radius of curvature r′ of the hoop member at the compressed bent portion is 0.1 mm to 0.6 mm. 7 . The spiral wound gasket of claim 2 , wherein the radius of curvature r of the hoop member at the bent portion is 0.2 mm to 1.2 mm. 8 . The spiral wound gasket of claim 2 , wherein the hoop member is composed of stainless steel, and the filler member has a density of 1 g/cm 3 to 1.2 g/cm 3 and is composed of expanded graphite. 9 . The spiral wound gasket of claim 3 , wherein the hoop member is composed of stainless steel, and the filler member has a density of 1 g/cm 3 to 1.2 g/cm 3 and is composed of expanded graphite.
Assignees
Inventors
Classifications
characterised by the sealing means · CPC title
characterised by structure · CPC title
- F16L23/18Primary
the sealing means being rings · CPC title
- F16J15/125Primary
generally perpendicular to the surfaces · CPC title
the sealing effect being obtained by elastic deformation of the packing · CPC title
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Frequently asked questions
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- What does patent US2019011048A1 cover?
- where a bending angle constituting the bent portion is α (°), and a radius of curvature of the bent portion is r (mm).
- Who is the assignee on this patent?
- Nippon Pillar Packing
- What technology area does this patent fall under?
- Primary CPC classification F16L23/18. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Jan 10 2019 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).