Apparatus and system for containment

• US 6,371,154 B1
• Filed: 09/17/1999
• Issued: 04/16/2002
• Est. Priority Date: 09/17/1999
• Status: Expired due to Term

• Current Assignee: Pisces by OPW Incorporated (Dover Corporation)
• Original Assignee: Fisces By OPW Incorporated
• Inventors: Kesterman, James E., Schneider, Eugene E.
• Primary Examiner(s): Walton, George L.
• Application Number:
  US09/398,662
• Time in Patent Office: 942 Days
• Field of Search: 137/312, 137/315.01, 138/109, 138/113, 138/114, 285/236, 285/7, 285/242, 285/252, 285/258, 285/331, 285/903
• US Class Current: 137/315.01
• CPC Class Codes: B67D 7/04 for transferring fuels, lubricants or mixed fuels and lubricants
• CPC Class Codes: B67D 7/3209 relating to spillage or leakage, e.g. spill containments, leak detection leak detectors for underground fuel dispensing systems G01M3/2892
• CPC Class Codes: F16L 25/0036 Joints for corrugated pipes
• CPC Class Codes: F16L 33/22 with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
• CPC Class Codes: F16L 41/021 T- or cross-pieces F16L41/025, F16L41/026, F16L41/028 take precedence
• CPC Class Codes: Y10S 285/903 Corrugated
• CPC Class Codes: Y10T 137/598 With repair, tapping, assembly, or disassembly means

Abstract

A fitting for conduit comprising a body and an acceptor. The body has a wall and a throughbore. The acceptor is disposed along the wall and is capable of providing a sealing interface between the throughbore and the conduit. In one embodiment, the acceptor of the fitting receives a portion of at least one wall of a conduit, and a sealing interface is provided between the throughbore of the body of the fitting and a flow passage of the conduit to form a containment system. In another embodiment, the throughbore is capable of allowing a primary conduit and a flow passage of a secondary conduit to communicate therethrough. According to this embodiment, the acceptor receives a portion of a wall of the secondary conduit and a sealing interface is provide between the throughbore and the flow passage of the secondary conduit to form a secondary containment system.

Claims

1. A fitting for conduit comprising:

a body having a wall and a throughbore, said wall having a smooth interior surface along its length;

an acceptor disposed along the interior surface of the wall and being capable of providing a sealing interface between the throughbore and conduit that may be received by the fitting; and

a clasp comprising a slot disposed along an intermediate portion of the clasp and configured to receive one or more protrusions on said body, the clasp having a first portion adapted to be received in a groove on conduit after the conduit is received by the fitting, and being capable of securing a portion of conduit that may be received by the fitting with respect to the body, the clasp configured to surround a portion of the body exterior of the acceptor to retain the conduit within the fitting.

2. The fitting according to claim 1, wherein the acceptor comprises a space defined between the interior surface of the wall of the body and a lip connected to the body.

3. The fitting according to claim 2, wherein the lip comprises a substantially rigid sleeve arranged generally parallel to the interior surface of the wall of the body.

4. The fitting according to claim 3, wherein an end of the sleeve is chamfered.

5. The fitting according to claim 2, wherein the lip and body are integrally connected.

6. The fitting according to claim 1, wherein a first end of the body defines an opening capable of receiving conduit that may be received by the fitting, and wherein the clasp is capable of securing a portion of conduit adjacent the opening to the body.

7. The fitting according to claim 1, further comprising a protrusion extending from the body, and wherein the clasp is adapted to receive the protrusion.

8. The fitting according to claim 7, wherein the protrusion is disposed on an exterior surface of the wall substantially adjacent a first end of the wall.

9. The fitting according to claim 1, wherein the clasp is comprised of opposing generally semicircular halves.

10. The fitting according to claim 1, further comprising a fastener for securing the clasp with respect to the body.

11. The fitting according to claim 1, further comprising a seal capable of cooperating with the acceptor and conduit that may be received by the fitting to form the sealing interface.

12. The fitting according to claim 11, wherein the seal is capable of cooperating with a groove on conduit that may be received by the fitting to form the sealing interface.

13. The fitting according to claim 12, wherein the seal comprises a ring having a generally T-shaped conformation.

14. The fitting according to claim 1, wherein a second end of the body is adapted to cooperate with another fitting.

15. The fitting according to claim 14, wherein the second end of the body is threaded.

16. The fitting according to claim 14, wherein the second end of the body is connected to a second fitting, the throughbores of the first and second fittings being in fluid communication.

17. The fitting according to claim 14, wherein the second end of the body is connected to a plurality of fittings, the throughbores of the plurality of fittings being in fluid communication.

18. The fitting according to claim 1, wherein a second end of the body is adapted to cooperate with a second conduit.

19. The fitting according to claim 1, wherein at least a portion of an external surface of the body is adapted to be received by a wrench.

20. The fitting according to claim 1, wherein the clasp is configured so that a depth into which the first portion of the clasp can be received in a groove on conduit is predefined.

21. The fitting according to claim 1, wherein the clasp is configured to be received in a groove on conduit along substantially an entire length of the groove.

22. A containment system comprising:

a conduit having at least one wall and a flow passage;

a fitting comprising;

a body having a wall and a throughbore, said wall being free from protrusions;

an acceptor disposed along the wall of the body, and receiving a portion of the at least one wall of the conduit;

a sealing interface between the throughbore and the flow passage;

a clasp comprising a slot disposed along an intermediate portion of the clasp and configured to receive one or more protrusions on said body cooperating with the body, a first portion of the clasp being received in a groove on the at least one wall of the conduit after the acceptor receives the portion of the at least one wall of the conduit, wherein the clasp secures the portion of the at least one wall of the conduit with respect to the body, the clasp configured to surround a portion of the body exterior of the acceptor to retain the conduit within the fitting.

23. The containment system according to claim 22, wherein the acceptor comprises a space defined between an interior surface of the wall of the body and a lip connected to the body.

24. The containment system according to claim 22, further comprising a protrusion extending from the body, and wherein the clasp receives the protrusion.

25. The containment system according to claim 22, wherein a seal cooperates with a groove on the at least one wall of the conduit to form the sealing interface.

26. The containment system according to claim 23, wherein the lip comprises material having a first coefficient of thermal expansion and the at least one wall of the conduit comprises material having a second coefficient of thermal expansion, the first coefficient of thermal expansion being less than the second coefficient of thermal expansion.

27. The containment system according to claim 22, wherein the clasp is configured so that a depth into which the first portion of the clasp is received in the groove on the at least one wall of the conduit is predefined.

28. The containment system according to claim 22, wherein the clasp is configured to be received in the groove on the at least one wall of the conduit along substantially an entire length of the groove.

29. The containment system according to claim 28, wherein the groove extends substantially around a perimeter of the conduit.

30. A fitting for conduit comprising:

a body having a wall and a throughbore, said wall having a smooth interior surface along its length;

an acceptor disposed along the interior surface of the wall and being capable of providing a sealing interface between the throughbore and conduit that may be received by the fitting;

a clasp comprising a slot disposed along an intermediate portion of the clasp for cooperating with the body, the clasp having a first portion adapted to be received in a groove on conduit that may be received by the fitting, the first portion being adapted to be received along substantially an entire length of the groove, and the clasp being capable of securing a portion of conduit that may be received by the fitting with respect to the body; and

a clamp configured to surround a portion of the clasp for securing a portion of the clasp with respect to the body and for retaining the conduit within the fitting.

31. The fitting according to claim 30, wherein the clasp is configured so that a depth into which the first portion of the clasp can be received in a groove on conduit is predefined.

32. A fitting for conduit comprising:

a body comprising a surface for mating with a clasp, said body having a wall and a throughbore, said wall having a smooth interior surface along its length;

an acceptor disposed along the interior surface of the wall and being capable of providing a sealing interface between the throughbore and conduit that may be received by the fitting;

said clasp configured to surround a portion of the body exterior to the acceptor and configured to mate with the body to retain the conduit within the fitting, the clasp having a first portion adapted to be received in a groove on conduit that may be received by the fitting, the clasp being configured so that a depth into which the first portion of the clasp can be received in a groove on conduit is predefined, and the clasp being capable of securing a portion of conduit that may be received by the fitting with respect to the body.

33. The fitting according to claim 32, wherein the clasp is configured to be received in a groove on conduit along substantially an entire length of the groove.