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US 11,898,638 B2Granted
Flange gasket
AssigneeLgc US Asset Holdings, LLC
InventorSteven Kristopher Kolb
Life of this patent
Estimating the term…
Abstract
A corrugated metal gasket for use between two flanges wherein the corrugated metal gasket is produced by a method comprising the steps of providing an annular gasket substrate and machining into that substrate a plurality of substantially uniform and generally concentric corrugations.
Claims16
A method of making a corrugated metal gasket for use between flanges, the method comprising:
- providing an annular ring made from a raw stock material comprising a first portion and a second portion;
- machining a first plurality of substantially uniform corrugations into a first axial surface of said second portion of said annular ring;
- and
- machining a second plurality of substantially uniform corrugations into a second axial surface of said second portion of said annular ring,
- wherein said first portion of said annular ring has a non-compressed axial thickness after said machining of said first plurality of substantially uniform corrugations and said machining of said second plurality of substantially uniform corrugations,
- wherein said first portion is distinct from said second portion and said first portion does not include corrugations,
- wherein a non-compressed distance between a peak of a corrugation of said first plurality of corrugations and a trough of said corrugation of said first plurality of corrugations is less than said non-compressed axial thickness of said first portion,
- wherein said first and/or second plurality of corrugations are the largest corrugations of the annular ring,
- wherein the non-compressed axial thickness of the material of the first portion is less than a distance measurable between parallel lines defined by the troughs of the first and second plurality of substantially uniform corrugations,
- wherein the machining a first plurality of substantially uniform corrugations includes cutting a corrugated profile by radial machining of said first axial surface, and wherein the corrugated profile is subsequently milled to form the desired corrugated geometry.
7 more elements
A method of making a corrugated metal gasket for use between flanges, the method comprising:
- providing an annular ring made from a raw stock material comprising a first portion and a second portion;
- machining a first plurality of substantially uniform corrugations into a first axial surface of said second portion of said annular ring;
- and
- machining a second plurality of substantially uniform corrugations into a second axial surface of said second portion of said annular ring,
- wherein said first portion of said annular ring has a non-compressed axial thickness after said machining of said first plurality of substantially uniform corrugations and said machining of said second plurality of substantially uniform corrugations,
- wherein said first portion is distinct from said second portion and said first portion does not include corrugations,
- wherein a non-compressed distance between a peak of a corrugation of said first plurality of corrugations and a trough of said corrugation of said first plurality of corrugations is less than said non-compressed axial thickness of said first portion,
- wherein said first and/or second plurality of corrugations are the largest corrugations of the annular ring,
- wherein the non-compressed axial thickness of the material of the first portion is less than a distance measurable between parallel lines defined by the troughs of the first and second plurality of substantially uniform corrugations,
- wherein the machining a first plurality of substantially uniform corrugations includes cutting a corrugated profile by radial machining of said first axial surface,
- wherein the corrugated profile is subsequently milled to form the desired corrugated geometry, and
- wherein the first axial surface and the second axial surface are coated with graphite.
9 more elements
Dependencies are inferred from the claim text.