COUPLING GASKET WITH MULTIPLE SEALING SURFACES

• US 20130187345A1
• Filed: 01/20/2012
• Published: 07/25/2013
• Est. Priority Date: 01/20/2012
• Status: Active Grant

• Current Assignee: ASC Engineered Solutions LLC
• Original Assignee: Mueller International LLC (Mueller Water Products Incorporated)
• Inventors: Beagen, Joseph William Jr.
• Granted Patent: US 9,534,715 B2
• Time in Patent Office: Days
• US Class Current: 277/626
• CPC Class Codes: F16J 15/022 characterised by structure or material
• CPC Class Codes: F16J 15/025 and with at least one flexible lip
• CPC Class Codes: F16L 17/025 the sealing rings having radially directed ribs
• CPC Class Codes: F16L 17/03 having annular axial lips
• CPC Class Codes: F16L 17/04 with longitudinally split or divided sleeve
• CPC Class Codes: F16L 21/02 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 ; sealing ring with radial ribs F16L17/025; sealing ring with axial lips F16L17/03; if adjustability is essential F16L27/00
• CPC Class Codes: F16L 21/065 tightened by tangentially-arranged threaded pins

Abstract

An annular gasket includes an annular body; an annular body; a pair of sealing ribs each extending substantially radially inwardly from the annular body and having an innermost radial extent; and at least one center rib extending substantially radially inwardly from the annular body, the at least one center rib having an innermost radial extent closer to the annular body than the innermost radial extent of each of the pair of sealing ribs.

Claims

1. An annular gasket comprising:

an annular body;

a pair of sealing ribs each extending substantially radially inwardly from the annular body and having an innermost radial extent; and

at least one center rib extending substantially radially inwardly from the annular body, the at least one center rib having an innermost radial extent closer to the annular body than the innermost radial extent of each of the pair of sealing ribs.

2. The gasket of claim 1, wherein the at least one center rib includes a central groove.

3. The gasket of claim 1, wherein the at least one center rib includes at least one sealing surface.

4. The gasket of claim 3, wherein the at least one sealing surfaces include two sealing surfaces.

5. The gasket of claim 3, wherein the annular body, the at least one center rib, and the pair of sealing ribs define a pair of gasket channels.

6. The gasket of claim 1, wherein the pair of sealing ribs extend from side portions of the annular body.

7. The gasket of claim 1, wherein the pair of sealing ribs include a sealing ridge at a radially inward end of each of the pair of sealing ribs.

8. The gasket of claim 7, wherein the sealing ridge of each of the pair of sealing ribs extends substantially axially inwardly from the radially inward end of each of the pair of sealing ends.

9. The gasket of claim 7, wherein the sealing ridge of each of the pair of sealing ribs includes a sealing surface and wherein each sealing surface is about cylindrical at rest.

10. The gasket of claim 9, wherein the sealing surfaces of the pair of sealing ribs are coannular at rest.

11. The gasket of claim 7, wherein the sealing ridge of each of the pair of sealing ribs includes an axially outer drafted edge.

12. The gasket of claim 7, wherein the sealing ridge of each of the pair of sealing ribs includes an axially inner drafted edge.