System, method and apparatus for a pipe coupling for irrigation

• US 10,443,775 B2
• Filed: 10/05/2016
• Issued: 10/15/2019
• Est. Priority Date: 10/12/2015
• Status: Active Grant

• Current Assignee: North American Specialty Products LLC (TTWF LP)
• Original Assignee: North American Specialty Products LLC (TTWF LP)
• Inventors: Dean, Roy Lucas, Allard, Bryan Fitzgerald, Dotsey, Michael Austin
• Primary Examiner(s): Dunwoody, Aaron M
• Application Number:
  US15/286,398
• Publication Number:
  US 20170102106A1
• Time in Patent Office: 1,105 Days
• Field of Search: 285 5, 2851251, 28513311, 28513321, 2851333, 285305, 2851335, 285179
• CPC Class Codes: A01G 25/02 Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
• CPC Class Codes: F16L 41/021 T- or cross-pieces F16L41/025, F16L41/026, F16L41/028 take precedence
• CPC Class Codes: F16L 41/03 comprising junction pieces for four or more pipe members

Abstract

A pipe coupling may include a body that is tubular and formed from a polymer. The body may include a main bore with a main axis and at least first and second female receptacles on each end of the main bore. Each receptacle may be configured to receive a male end of a pipe. A first brace may be coupled to and extend between, for example, a first female receptacle and a third female receptacle. A second brace may be coupled to extend between, for example, a second female receptacle and the third female receptacle. The pipe coupling can be a single, integral, injection molded monolithic structure.

Claims

1. A pipe coupling, comprising:

a body that is tubular and formed from a polymer, the body has a main bore with a main axis and first and second female receptacles on each end of the main bore, each configured to receive a male end of a pipe, and an auxiliary bore extending from the main bore with an auxiliary axis and a third female receptacle on an end of the auxiliary bore, also configured to receive a male end of a pipe, the main axis and the auxiliary axis positioned in a reference plane bisecting the body;

a first brace coupled to and extending between the first female receptacle and the third female receptacle;

a second brace coupled to extending between the second female receptacle and the third female receptacle; and

the pipe coupling is a single, integral, injection molded monolithic structure,

wherein the first and second brace each have a width oriented perpendicular to the reference plane and a thickness in a direction parallel to the reference plane, and

wherein the width is greater than the thickness.

2. The pipe coupling of claim 1, wherein the pipe coupling is one of a tee coupling and a four-way union.

3. The pipe coupling of claim 1, wherein each of the three female receptacles has a mechanical restraint groove in an interior thereof, and a mechanical restraint aperture extending from an exterior thereof to a respective one of the mechanical restraint grooves.

4. The pipe coupling of claim 1, wherein the first, second and third female receptacles have at least one of a same inner diameter and a same outer diameter.

5. The pipe coupling of claim 1, wherein a first aperture is defined between the first brace and the body, and a second aperture is defined between the second brace between the body, such that there are open spaces between the braces and the body.

6. The pipe coupling of claim 1, wherein each of the first and second braces is a diagonal ramp relative to the main and auxiliary axes.

7. The pipe coupling of claim 1, wherein the main bore comprises:

a first rib axially spaced apart from but adjacent to the first female receptacle relative to the main axis, and configured to be a mechanical stop for a first pipe;

a second rib axially spaced apart from but adjacent to the second female receptacle relative to the main axis, and configured to be a mechanical stop for a second pipe; and

the auxiliary bore comprises;

a third rib axially spaced apart from but adjacent to the third female receptacle relative to the auxiliary axis, and configured to be a mechanical stop for a third pipe.

8. The pipe coupling of claim 1, wherein the main bore has a substantially constant inner diameter, other than:

ribs configured to be mechanical stops for abutting pipes;

seal grooves configured to retain seal members; and

mechanical restraint recesses configured to retain mechanical restraints.

9. The pipe coupling of claim 1, wherein the first and second braces are mirror images of each other about a plane perpendicular to the main axis and through the auxiliary axis.

10. The pipe coupling of claim 1, wherein the body comprises a sled that is substantially planar and located opposite the third female receptacle.

11. The pipe coupling of claim 1, wherein the main bore and the auxiliary bore each have an inner diameter (ID) of at least about 2 inches, and not greater than about 5 inches.

12. The pipe coupling of claim 1, wherein the polymer used to form the body comprises at least one of the following materials:

polyvinylchloride (PVC), polypropylene (PP), nylon acetyl, high density polyethylene (HDPE) and reinforcements thereof.

13. The pipe coupling of claim 1, wherein the braces are oriented at an angle relative to the main axis, and the angle is at least about 30 degrees, and not greater than about 60 degrees.

14. The pipe coupling of claim 1, wherein each of the main bore and the auxiliary bore further comprise a recess configured to retain a seal.

15. A pipe coupling, comprising:

a body that is tubular and formed from a polymer, the body has a bore with an axis and at least two female receptacles in fluid communication with the bore, each female receptacle is configured to receive a male end of a pipe, and the axis is non-linear such that two of said at least two female receptacles are oriented relative to each other at an angle of less than 180 degrees;

a brace coupled to and extending between said two of said at least two female receptacles, wherein an aperture is formed between the brace and the at least two female receptacles such that ends of the brace are connected to the at least two female receptacles whereas a portion of the brace between the ends is not connected to the body; and

the pipe coupling is a single, integral, injection molded monolithic structure.

16. The pipe coupling of claim 15, wherein the pipe coupling is an elbow, a tee or a four-way union.

17. The pipe coupling of claim 15, wherein the bore further comprises recesses configured to retain seals.

18. The pipe coupling of claim 15, wherein the pipe coupling is configured to be removably restrained, coupled and sealed to the pipes with mechanical restraints and seals.

19. The pipe coupling of claim 15, wherein the pipe coupling is configured to go through farming equipment in an axial direction without being disassembled from the pipes.

20. The pipe coupling of claim 19, wherein the pipe coupling and pipes are configured to be lifted by a tractor in a farm, processed through a roller system on the tractor in the axial direction, and placed back in the farm by the tractor without being disassembled.

21. A tee coupling for pipes, comprising:

a tee body that is tubular and formed from a polymer, the tee body has a main bore with a main axis, and first and second female receptacles on each end of the main bore, an auxiliary bore extending from the main bore with an auxiliary axis, and a third female receptacle on an end of the auxiliary bore, each of the female receptacles is configured to receive a male end of a pipe, the female receptacles comprise inner diameters that are substantially identical, and a sled integrally formed with the tee body and located opposite the third female receptacle and extending parallel to the main axis of the main bore along an outside of the body.

22. A method of farming with an irrigation system, the method comprising:

(a) installing an irrigation assembly in a field, above ground, at a farm, the irrigation system including a tee coupling according to claim 21, first, second and third pipes connected to the tee coupling, wherein the tee coupling further includes guard elements extending from adjacent the third pipe to adjacent each of the first and second pipes;

(b) disconnecting at least one of the pipes from the tee coupling, such that the tee coupling has an open receptacle that is not coupled to said at least one of the pipes; and

then

(c) farming the field and processing portions of the irrigation assembly through a roller system on a tractor, such that the open receptacle of the tee coupling is oriented horizontally, and the guard elements protect the open receptacle from damage by the roller system.