US 10,591,063 B2 · Spiral wound gasket

Abstract

Provided is a spiral wound gasket that has improved conformability and that is capable of exhibiting sufficient sealability for flanges provided at joints, irrespective of the state of a gap between the flanges. The present invention provides 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 constituting the bent portion is α (°), and a radius of curvature of the bent portion is r (mm).

Claims4

Dependent claims

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);
wherein the bending angle α of the hoop member at the bent portion is 100° to 130°;
and
wherein the radius of curvature r of the hoop member at the bent portion is 0.3 mm to 0.9 mm.

18 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/023,615Filed 29 Jun 2018

Priority

JP 2017-1329156 Jul 2017

Published

US 2019/0011048 A110 Jan 2019

Granted

17 Mar 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

F16J 15/125
With metal reinforcement: generally perpendicular to the surfaces
F16J 15/0887
With exclusively metal packing: the sealing effect being obtained by elastic deformation of the packing
F16J 15/102
With non-metallic packing: characterised by material
F16J 15/104
With non-metallic packing: characterised by structure

Spiral wound gasket

Life of this patent

Spiral wound gasket

Life of this patent

Abstract

Claims4