Coupling gasket with multiple sealing surfaces

Patent metadata

Field	Value
Publication number	US-11739869-B2
Application number	US-202217750014-A
Country	US
Kind code	B2
Filing date	May 20, 2022
Priority date	Jan 20, 2012
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

A coupling sized for use with a pipe having a pipe outer diameter, the coupling including a pair of segments; and a gasket positioned between the pair of segments, the gasket including an annular body; and a pair of sealing ribs each extending substantially radially inwardly from the annular body, each sealing rib of the pair of sealing ribs defining a cylindrical sealing surface at an innermost radial extent in an uncompressed state, the cylindrical sealing surfaces each defining an inner gasket diameter that is larger than the pipe outer diameter when the gasket is in the uncompressed state.

First claim

That which is claimed is:

1. A coupled pipe-joint assembly, comprising:
a pipe having a pipe outer diameter; and
a coupling, comprising:
a pair of segments extending about the outer diameter of the pipe; and
a gasket positioned between the pair of segments, the gasket comprising:
an annular body; and
a pair of sealing ribs each extending substantially radially inwardly from the annular body, each sealing rib of the pair of sealing ribs defining a cylindrical sealing surface at an innermost radial extent in an uncompressed state, the cylindrical sealing surfaces each defining an inner gasket diameter that is larger than the pipe outer diameter when the gasket is in the uncompressed state.

2. The coupled pipe-joint assembly, of claim 1 , wherein:
each sealing rib defines an axially outer drafted edge; and
each axially outer drafted edge extends axially outward and radially outward from the cylindrical sealing surface at a non-zero angle from a radial direction.

3. The coupled pipe-joint assembly, of claim 1 , wherein:
each sealing rib defines an axially inner drafted edge; and
each axially inner drafted edge of the pair of sealing ribs extends axially inward and radially outward from the cylindrical sealing surface at a non-zero angle from a radial direction.

4. The coupled pipe-joint assembly, of claim 1 , further comprising at least one center rib extending radially inward from the annular body.

5. The coupled pipe-joint assembly, of claim 4 , wherein the at least one center rib is axially positioned between the pair of sealing ribs.

6. The coupled pipe-joint assembly, of claim 1 , wherein the annular body defines a radially outer surface, wherein the radially outer surface defines a deformation groove.

7. The coupled pipe-joint assembly, of claim 1 , further comprising a plurality of fasteners coupling the pair of segments together.

8. A pipe-joint assembly, comprising:
a pipe having a pipe outer diameter; and
a gasket positioned about the outer diameter of the pipe, the gasket comprising:
an annular body; and
a pair of sealing ribs each extending substantially radially inwardly from the annular body, each sealing rib of the pair of sealing ribs defining a cylindrical sealing surface at an innermost radial extent in an uncompressed state, the cylindrical sealing surfaces defining an inner gasket diameter that is larger than the pipe outer diameter when the gasket is in the uncompressed state.

9. The pipe-joint assembly of claim 8 , wherein:
each sealing rib defines an axially outer drafted edge; and
each axially outer drafted edge extends axially outward and radially outward from the cylindrical sealing surface at a non-zero angle from a radial direction.

10. The pipe-joint assembly of claim 8 , wherein:
each sealing rib defines an axially inner drafted edge; and
each axially inner drafted edge of the pair of sealing ribs extends axially inward and radially outward from the cylindrical sealing surface at a non-zero angle from a radial direction.

11. The pipe-joint assembly of claim 8 , further comprising at least one center rib extending radially inward from the annular body.

12. The pipe-joint assembly of claim 11 , wherein the at least one center rib is axially positioned between the pair of sealing ribs.

13. The pipe-joint assembly of claim 8 , wherein the annular body defines a radially outer surface, wherein the radially outer surface defines a deformation groove.

Assignees

• Asc Eng Solutions Llc

Inventors

• Beagen Jr Joseph William

Classifications

• F16L21/065 Primary

  tightened by tangentially-arranged threaded pins · CPC title

• F16J15/025

  and with at least one flexible lip · CPC title

• F16L17/025

  the sealing rings having radially directed ribs · CPC title

• F16L17/04

  with longitudinally split or divided sleeve · CPC title

• F16L21/02

  with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings (F16L21/06, F16L21/08 take precedence; if adjustability is essential F16L27/00) · CPC title