COUPLING WITH TONGUE AND GROOVE

• US 20150020371A1
• Filed: 10/03/2014
• Published: 01/22/2015
• 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 9,631,746 B2
• Time in Patent Office: Days
• US Class Current: 29/525.05
• CPC Class Codes: F16L 13/14 made by plastically deforming the material of the pipe, e.g. by flanging, rolling
• CPC Class Codes: F16L 17/025 the sealing rings having radially directed ribs
• CPC Class Codes: F16L 17/04 with longitudinally split or divided sleeve
• CPC Class Codes: F16L 19/043 with additional sealing means
• 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 23/08 connection by tangentially arranged pin and nut
• CPC Class Codes: Y10T 29/49948 Multipart cooperating fastener [e.g., bolt and nut]
• CPC Class Codes: Y10T 29/49954 Fastener deformed after application

Abstract

A method of coupling first and second pipe elements in end-to-end facing relationship includes obtaining a coupling, the coupling including an annular gasket, at least one segment, and a fastener, each segment being approximately semi-circular and including at least two ends, each end including at least one of a tongue and a groove, each tongue protruding circumferentially from at least one end, each groove defined circumferentially in at least one end; slipping the coupling onto the first pipe element beyond any groove proximate the end of the first pipe element; aligning the second pipe element in end-to-end facing relationship with the first pipe element; slipping the coupling onto the second pipe element such that the segments of the coupling straddle the ends of the first and second pipe elements; and engaging each fastener to deform each segment into contact with the outer surfaces of the first and second pipe elements.

Claims

1. A method of coupling first and second pipe elements in end-to-end facing relationship comprising:

obtaining a coupling, the coupling including

an annular gasket, the annular gasket including at least one sealing surface directed radially inwardly and an outer surface directed radially outwardly;

at least one segment, each segment being approximately semi-circular and including at least one inner surface, at least one outer surface, a first end and a second end, each segment including a fastener pad protruding proximate to each end, each fastener pad defining a fastener hole, the first end including a tongue and the second end including a groove, each tongue including an inner surface and protruding circumferentially from each first end, each groove defined circumferentially in each second end, each groove defined circumferentially in at least one end; and

at least one fastener, wherein at least one portion of a shaft portion of the fastener is sized to engage at least one fastener hole in at least one segment;

slipping the coupling onto the first pipe element;

aligning the second pipe element in end-to-end facing relationship with the first pipe element; and

engaging each fastener to deform each segment into contact with the outer surfaces of the first and second pipe elements.

2. The method of claim 1, wherein the tongue includes a leading edge, the leading edge and each groove including a mating surface, the method further comprising contacting the mating surface of each groove with the mating surface of each tongue.

3. The method of claim 1, wherein the at least one segment includes a first segment and a second segment.

4. The method of claim 3, further comprising compressing the annular gasket into sealing engagement with the first pipe and the second pipe along a vertical axis extending between the first segment and the second segment.

5. The method of claim 4, wherein the tongue of the first segment and the tongue of the second segment extend beyond a horizontal axis perpendicular to the vertical axis, and wherein compressing the annular gasket includes the tongue of the first segment and the tongue of the second segment pressing against the annular gasket along the horizontal axis.

6. The method of claim 1, further comprising contacting a first contact surface of each segment with a second contact surface of a one of the at least one segment.

7. The method of claim 1, wherein the annular gasket includes at least one center rib and at least two sealing ridges.

8. The method of claim 7, wherein the center rib includes two sealing surfaces and wherein each sealing ridge includes a sealing surface.

9. The method of claim 8, wherein a central groove separates the two sealing surfaces of the center rib.

10. The method of claim 7, wherein each sealing ridge is disposed between an axially inner drafted edge and an axially outer drafted edge.

11. The method of claim 7, wherein the sealing surfaces of the sealing ridges are substantially parallel.

12. The method of claim 1, wherein the gasket includes at least two gasket channels.

13. The method of claim 1, The method of claim 1, wherein each fastener includes a collar portion and wherein each collar portion includes an axial dimension and a transverse dimension, and wherein each axial dimension is smaller than each transverse dimension.

14. The method of claim 13, wherein each axial dimension of each collar portion is smaller than each axial dimension of each fastener hole, wherein each transverse dimension of each collar portion is smaller than each transverse dimension of each fastener hole, and wherein each axial dimension of each fastener hole is smaller than each transverse dimension of each collar portion.

15. A method of coupling first and second pipe elements in end-to-end facing relationship comprising:

obtaining a coupling, the coupling including

an annular gasket, the annular gasket including at least one sealing surface directed radially inwardly and an outer surface directed radially outwardly;

at least one segment, each segment being approximately semi-circular and including at least one inner surface, at least one outer surface, and at least two ends, each segment including a fastener pad protruding proximate to each end, each fastener pad defining a fastener hole, each end including at least one of a tongue and a groove, each tongue protruding circumferentially from at least one end, each groove defined circumferentially in at least one end; and

at least one fastener, wherein at least one portion of a shaft portion of the fastener is sized to engage at least one fastener hole in at least one segment;

slipping the coupling onto the first pipe element beyond any groove proximate the end of the first pipe element;

aligning the second pipe element in end-to-end facing relationship with the first pipe element;

slipping the coupling onto the second pipe element such that the segments of the coupling straddle the ends of the first and second pipe elements; and

engaging each fastener to deform each segment into contact with the outer surfaces of the first and second pipe elements.

16. The method of claim 15, wherein each tongue includes a leading edge, the leading edge and each groove including a mating surface, the method further comprising contacting the mating surface of each groove with the mating surface of each tongue.

17. The method of claim 15, wherein each segment includes two contact surfaces.

18. The method of claim 15, wherein the annular gasket includes at least one center rib and at least two sealing ridges.

19. The method of claim 18, wherein the center rib includes two sealing surfaces and wherein each sealing ridge includes a sealing surface.

20. The method of claim 19, wherein a central groove separates the two sealing surfaces of the center rib.