Length adjustable concentric tube system

Abstract

A length adjustable concentric tube system utilizes a length adjustable concentric tube assembly having an exterior tube configured around an interior tube with pin apertures through each tube to enable the pin of the spring pin to protrude therethrough to retain the tubes in a fixed position with respect to each other. An adjustment assembly coupled to the exterior tube may include a slider button that when depressed forces the pin of the spring pin into the exterior tube pin aperture to enable the exterior tube to slide with respect to the interior tube. A length adjustable concentric tube assembly may include a plurality of spring pins, or a plurality of exterior tubes and interior tubes configured in a multi-integrated concentric tube assembly. A length adjustable support may incorporate the length adjustable concentric tube system and have a Y-shaped receiver for securing a fishing rod or firearm, for example.

Description

Docket No.: ITP / 995PCTLENGTH ADJUSTABLE CONCENTRIC TUBE SYSTEMCross Reference to Related Applications

[0001] This application claims the benefit of priority to U.S. provisional application No. 63 / 713,572 filed on October 29, 2024; the entirety of which is hereby incorporated by reference herein.BACKGROUND OF THE INVENTIONField of the Invention

[0002] The invention relates to a length adjustable concentric tube system wherein an exterior tube is configured to slide over an interior tube and then lock in position via a spring pin that forces a pin to extend through an interior tube pin aperture and an aligned exterior tube pin aperture.Background

[0003] Shaft, tubes and other elongated support members are used for a plethora of applications including supports or braces for other items. The length of a shaft, tube or other elongated support member may not be appropriate for a particular situation and a longer or shorter elongated support member may be required. When this happens, a new support may have to be found or an existing support member may have to cut.

[0004] Elongated support members are used for supports, such as for fishing applications to secure a fishing rod in a position and may have a Y-shaped extended end to hold the rod therein. Some of these elongated support members are configured with a sharp end for insertion into a ground surface or may be secured to a base support member. The length of these fishing rod support members may be fixed and it may be desirable for the length to be adjustable to accommodate various fishing rod orientations.SUMMARY OF THE INVENTIONDocket No.: ITP / 995PCT

[0005] An exemplary length adjustable concentric tube system utilizes a length adjustable concentric tube assembly having an exterior tube configured around an interior tube with pin apertures through each tube to enable the pin of the spring pin to protrude therethrough to retain the tubes in a fixed position with respect to each other. An adjustment assembly coupled to the exterior tube may include a slider button that when depressed forces the pin of the spring pin into the exterior tube pin aperture to enable the exterior tube to slide with respect to the interior tube. A length adjustable concentric tube assembly may include a plurality of spring pins configured along the length of the interior tube to enable incremental adjustment of the length of the concentric tube assembly.

[0006] allow individual movement of each shaft in both directions independently from the rest. Tliis is the reason for the slides. Typical umbrella shafting has no index (slides) and when they are collapsed the inner shafts are flush inside the main outer tube and therefore no way to grip them to move them, the shafts need to be affixed to something someone can pull to get the shafts to extend fully and pins to pop into the holes. Only then can the individual pins be manipulated to adjust the shaft length. From the vertical position with largest shaft on the bottom and the shafts fully extended and pins locked the user can adjust the height by depressing a pin of choice which adjusts the shafting to that selected height. If the bottom pin is pushed then it causes an avalanche of shafts to be collapsed into the largest bottom tube. Our slides do not permit the avalanche, the slides are manipulated individually and manually. If you use this information please word it your way, it may help the examiner understand the uniqueness of what we are accomplishing.

[0007] The exterior tube of the concentric tube assembly may have a cross-sectional outer shape that is circular or may be polygonal or irregular shaped for improved strength and / or bending resistance in one or more directions. A circular crosssection may be preferred for many applications, however. A smooth rounded outer surface of the exterior tube may be concentric with the interior tube.

[0008] The interior tube is configured inside of the exterior tube and these tubes may have alignment features that ensure that the exterior tube does not spin or rotate with respect to the interior tube when sliding for length adjustment. The alignment feature may also ensure that the exterior tube pin aperture aligns with the interior tube pin aperture and the pin of the spring pin for locking the two tubes in a fixed length position. An alignment feature may be a protrusion and a correspondingDocket No.: ITP / 995PCT recess, wherein the protrusion protrudes into a receiving recess. In an exemplary embodiment, the exterior tube has a protrusion from an interior surface, such as a convex shape that corresponds with a recess, such as a convex shape in the exterior of the interior tube. An alignment feature may extend from or into an exterior surface of the interior tube or be a particular shape of the interior tube. An alignment feature may extend from or into an interior surface of the exterior tube or be a particular shape of the exterior tube.

[0009] The interior and exterior tubes may be made of a variety of materials, such as metal, composites, or plastics. For fishing rod support applications, the tubes may be made of plastic and may be molded plastic tubes. The interior and / or exterior tube may be sized for the application required and may have a diameter or maximum width of about 50mm or less, about 35mm or less, about 25mm or less and any range between and including the values provided. The length of the length adjustable concentric tube assembly may be about 0.15m or more about 0.25m or more, about 0.35m or more, about 0.5m or more, or any range between and including the length values provided.

[0010] An exemplary adjustment assembly is attached to the exterior tube proximal to or over the exterior tube pin aperture. The adjustment assembly has a slider button that when depressed pushes the pin of the spring pin into the exterior tube pin aperture to enable the exterior tube to slide with respect to the interior tube. The slider button may be an elastic material that can be deformed and then rebound back to an original configuration. The adjustment assembly may have a pin receiver, a recess or volume of space for the pin of the spring pin to extend therein. An adjustment assembly may extend around the exterior tube and be fixed to the exterior tube, such as by a fastener, glue or adhesive and / or welding or melting.

[0011] The spring pin is coupled to the interior tube and has a pin that extends out through an interior tube pin aperture. The spring pin creates a spring force to force the pin radially outward from the centerline or center of the concentric tube assembly. The spring pin has a spring body that may include a pin extension, and extension from the pin to a spring loop that is a bend in the spring body from this pin extension to a spring extension. The spring extension may extend to an opposing side of the interior wall of the interior tube and may be secured to the interior tube. This bend or spring loop configuration produces a living hinge and the force on theDocket No.: ITP / 995PCT pin. A spring pin may be deformed or compressed for insertion into the interior tube and this compression produces an opposing force by the spring pin. A pin may have shape that enables the exterior tube to slide over the pin when the pin is pressed flush or at least partially down into the exterior tube pin aperture.

[0012] An exemplary length adjustable concentric tube system may include one or a plurality of spring pins along the length of the concentric tube assembly. A first spring pin or pin may be configured an offset distance from a second pin of a second spring pin and this enables securing the concentric tube assembly in two different fixed lengths.

[0013] The length adjustable concentric tube system may include multi-integrated concentric tube assemblies, such as one, two, three, four, five or even six or more. Each concentric tube assembly may include a plurality of interior tube apertures and spring pins for each of these apertures, and this arrangement enables adjustment of the length of the concentric tube assembly by moving the respective exterior tube into alignment with one of the spring pins.

[0014] The summary of the invention is provided as a general introduction to some of the embodiments of the invention and is not intended to be limiting. Additional example embodiments including variations and alternative configurations of the invention are provided herein.BRIEF DESCRIPTION OF SEVERAL VIEWS OF THE DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention.

[0016] Figure 1 shows a cross-section view along the length axis of an exemplary length adjustable concentric tube assembly that utilizes an exterior tube configured around an interior tube with pin apertures through each tube to enable the pin of the spring pin to protrude therethrough to retain the tubes in a fixed position with respect to each other.

[0017] Figure 2 shows a side perspective view of the exemplary length adjustable concentric tube system shown in FIG. 1 with a slider button configured to depressDocket No.: ITP / 995PCT the pin through the two apertures in both the exterior and interior tubes for adjustment of the length by sliding the exterior tube along the interior tube to a second pin aperture location.

[0018] Figure 3 show a cross sectional view across the length axis of the length adjustable concentric tube system having the adjustment assembly coupled to the exterior tube and with a slider button that depresses the pin of the spring pin to enable sliding of the exterior tube over the interior tube and with alignment features in each of the interior tube, exterior tube and adjustment assembly to prevent any component from spinning or rotating about the length axis.

[0019] Figure 4 shows a side view of the length adjustable concentric tube system with the length adjustable concentric tube assembly in series of different positions including locked in a fixed position with the pin of the spring pin assembly protruding through the pin aperture in the interior and exterior tubes and then with the pin depress by the slider button being press by a person’s thumb and then with the exterior tube slide up over the interior tube to adjust the length.

[0020] Figure 5 shows a side view of the length adjustable concentric tube system configured with a rod support, wherein a Y-shaped rod receiver is coupled to the concentric tube assembly on a first end and an insert end is configured on the second and opposing end.

[0021] Figure 6 shows a side view of the length adjustable concentric tube system having a concentric tube assembly 460 with three adjustment assemblies and configured with a firearm support, wherein a Y-shaped firearm receiver is coupled to the concentric tube assembly on a first end and a base end is configured on the second and opposing end.

[0022] Figure 7 shows a side view of the length adjustable concentric tube system shown in FIG. 6, with the second adjustment assembly and second exterior tube slid and locked into position with a second spring pin to further extend the length of the concentric tube assembly 460.

[0023] Corresponding reference characters indicate corresponding parts throughout the several views of the figures. The figures represent an illustration of some of the embodiments of the present invention and are not to be construed as limiting the scope of the invention in any manner. Some of the figures may not show all of the features and components of the invention for ease of illustration, but it is to beDocket No.: ITP / 995PCT understood that where possible, features and components from one figure may be included in the other figures. Further, the figures are not necessarily to scale, some features may be exaggerated to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS

[0024] As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having" or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also, use of "a" or "an" are employed to describe elements and components described herein. This is done merely for convenience and to give a general sense of the scope of the invention. This description should be read to include one or at least one and the singular also includes the plural unless it is obvious that it is meant otherwise.

[0025] Certain exemplary embodiments of the present invention are described herein and are illustrated in the accompanying figures. The embodiments described are only for purposes of illustrating the present invention and should not be interpreted as limiting the scope of the invention. Other embodiments of the invention, and certain modifications, combinations and improvements of the described embodiments, will occur to those skilled in the art and all such alternate embodiments, combinations, modifications, improvements are within the scope of the present invention.

[0026] Referring now to FIGS. 1 to 3, a cross-section view along the length axis 15 of an exemplary length adjustable concentric tube system 10 that utilizes a length adjustable concentric tube assembly 11 having an exterior tube 60 configured around an interior tube 40 with pin apertures through each tube to enable the pin of the spring pin to protrude therethrough to retain the tubes in a fixed position with respect to each other. As shown in FIG. 1, the first pin 82 and second pin 82' of theDocket No.: ITP / 995PCT respective spring pins 80, 80’ are retained by the interior tube 40. Each of the pins 82, 82' are aligned with and protrude into the interior tube pin apertures 44, 44’, respectively. A pin 82 will also extend through the exterior tube pin apertures 64 when the pin receiver 54 of the adjustment assembly 50 is aligned with the pin. This locks the exterior tube 60 in position with respect to the interior tube 40. When the adjustment assembly 50 slides to align the exterior tube pin aperture 64 with one of the interior tube pin apertures, the pin is forced through the exterior tube pin aperture and into a pin receiver 54 of the adjustment assembly 50 to retain the exterior tube in a fixed position with respect to the interior tube. As described herein, an exemplary length adjustable concentric tube system 10 may incorporate a single pin or a plurality of pins to enable variable length adjustment of the concentric tube assembly 460. The first pin 82 and second pin are offset an offset distance 25, which may be at least 10mm, about 25mm or more, about 50mm or more, about 75mm or more, about 100mm or more, about 150mm or more, about 200mm or more. The diameter of the exterior tube may be about 5mm or more, about 10mm or more, about 15mm or more, about 20mm or more, or any diameter between and including the values provided.

[0027] Referring to FIGS. 1 and 2, the adjustment assembly 50 has a slider button 52, such as an elastomeric button 53 that when pressed, depresses the pin through the exterior tube pin aperture to enable the exterior tube to slide with respect to the interior tube. The adjustment assembly is attached by an attachment 55 to the exterior tube and this attachment may be glue, a fastener, a snap fit feature and the like.

[0028] An interior tube may have one or more, two or more, three or more, four or more five or more, six or more, ten or more, or even 20 or more spring pins aligned with respective interior tube pin apertures to enable sliding and retaining the exterior tube to any one of these spring pins. The offset distance between the spring pins and interior spring pin apertures may be about 2cm or more, about 5cm or more, about 10cm or more, about 15cm or more, about 20 cm or more and any range between and including the offset distance values provided. The offset distance may be consistent along the length of the exemplary length adjustable concentric tube assembly 11 or may change from one end to an opposing end wherein the offset distance between interior tube pin apertures is less at a first end than at an opposingDocket No.: ITP / 995PCT second end. This change in offset distance may be provided for more precision of finer adjustments at one end.

[0029] As shown in FIG 1, the spring pin 80 is retained in the interior tube 40 and due to compression, forces the pin 82 out of the interior tube pin aperture 44. The spring pin has a spring pin body 84 that extends from the pin 82 along a pin extension 86 to the spring loop 87, that is a bend in the spring body to the spring extension 88. The spring loop 87 is a bent portion of the spring pin body 84 between the pin extension 86 and the spring extension 88. The spring extension 88 extends from the spring loop 87 to the extended end 89 of the spring body. The extended end 89 of the spring body may be pressed against the interior tube wall 42 to compress the spring body to create the force on the pin 82. The spring extension 88 may be compressed toward the pin extension 86 within the interior tube.

[0030] The interior tube 40 has an interior tube wall 43 with an interior surface 41 and an exterior surface 43. The spring pin 80 is configured within the interior of the interior tube 40 and the pin 82 extends through an interior tube pin aperture 44 in the interior tube wall 42.

[0031] The exterior tube 60 has an exterior tube wall 63 with an interior surface 61 and an exterior surface 63. The spring pin 80 is configured within the interior of the interior tube 40 and the pin 82 extends through the interior tube pin aperture 44 in the interior tube wall 42 and also through an exterior tube pin aperture 64 in the exterior tube wall 62.

[0032] As shown in FIG. 3, the adjustment assembly 50 is coupled to the exterior tube 60 and has a slider button 52 that depresses the pin 82 of the spring pin 80 to enable sliding of the exterior tube 60 over the interior tube 40. Each of the interior tube 40, exterior tube 60 and adjustment assembly 50 has a respective alignment feature 46, 66, 56 configured to prevent any component from spinning or rotating about the length axis. The alignment feature may be a protrusion or recess that enables the mating component to slide there along without rotation about the length axis. As shown, the alignment feature is a protrusion. The adjustment assembly 50 may be fixed to the exterior tube 60 and therefore may not require an alignment feature.

[0033] As shown in FIG. 4, the length adjustable concentric tube assembly 11 is configured in a series of different positions including locked in a fixed position withDocket No.: ITP / 995PCT the pin 82 of the spring pin assembly protruding through the pin aperture in the interior tube 40 and exterior tube 60. Then the pin 82 is depressed by the slider button 52 by a person’s thumb to enable the exterior tube 60 to slide along the interior tube 40 to adjust the length by stopping at a second pin location or second interior tube pin aperture location, wherein the second pin protrudes through the exterior tube to fix the interior tube to the exterior tube in a new position.

[0034] As shown in FIG. 5, the length adjustable concentric tube system 10 is configured as a length adjustable support 100, wherein a Y-shaped receiver 102 is coupled to the concentric tube assembly 460 on a first end 124 and an insert end 160 is configured on the second end 126 of the concentric tube assembly 460. The Y-shaped receiver has a first arm 104 and a second arm 106 forming a receiver yolk 108 for receiving items for support, such as a fishing rod or a firearm. The exterior tube 60 extends from the adjustment assembly 50 to the first end 124 and the interior tube 40 extends to the second end 126, having said insert end 160 with sharp point for insertion into a ground surface. The slider button can be pushed in to slide the exterior tube 60 and Y-shaped receiver 102 up to the spring pin 80 to increase the length of the length adjustable support 100 and can also be pushed in to slide the exterior tube 60 down over the interior tube 40 to the second spring pin 80’ to lock the exterior tube to the interior to in a shortened configurations.

[0035] Referring now to FIGS. 6 and 7, the length adjustable concentric tube system 10 has three concentric tube assemblies 460, each with an adjustment assembly 50, 50’, 50” configured to release a respective pin 82, 82’, 82”. This multi-integrated concentric tube assembly 480 enables adjustment of one, two, or all three of the adjustment assemblies to vary the length of the length adjustable support 100. As shown in FIG. 6, the first adjustment assembly 50 is coupled to the first exterior tube 60 and is slid up along the first interior tube 40 to a first spring pin 80 and is locked in position with the first pin 82 extending through both the first interior tube pin aperture and the first exterior tube pin aperture. This is a first elongated orientation. The length adjustable support 100 can be further elongated, as shown in FIG. 7, by sliding the second exterior tube 60’ coupled to the second adjustment assembly 50’ up over the second interior tube 40’ to lock the second exterior tube 60’ to the second interior tube 40’. The second exterior tube 60’ is also the first interior tube 40 that the first exterior tube 60 slide along. The third exterior tube 60” can then be slidDocket No.: ITP / 995PCT up over the third interior tube 40” to further elongate the length adjustable support 100. The length adjustable support 100 shown in FIG. 6 and 7 has a base 180 as opposed to the insert end 160 shown in FIG. 5 and this base may be rounded or have a flat portion for more stable engagement on a surface for support.

[0036] It will be apparent to those skilled in the art that various modifications, combinations and variations can be made in the present invention without departing from the scope of the invention. Specific embodiments, features and elements described herein may be modified, and / or combined in any suitable manner. Thus, it is intended that the present invention cover the modifications, combinations and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

What is claimed is:

1. A length adjustable concentric tube system comprising a concentric tube assembly comprising: a) a length axis extending along a length of the concentric tube assembly from a first end to a second end; b) an interior tube comprising: i) an interior tube wall having a thickness from an interior surface to an exterior surface; ii) an interior tube pin aperture extending through said interior tube wall; c) an exterior tube extending around said interior tube, said exterior tube comprising: i) an exterior tube wall having a thickness from an interior surface to an exterior surface; ii) an exterior tube pin aperture through said exterior tube wall; d) a spring pin configured within the interior tube and comprising: i) a pin coupled to a spring body that forces the pin radially outward through said interior tube pin aperture; e) an adjustment assembly attached to the exterior tube and comprising: i) a slider button configured to depress the pin of the spring pin radially inward through the exterior tube pin aperture to enable the exterior tube to slide along the interior tube; and wherein, with the pin of the spring pin assembly extending through the interior tube pin aperture and the exterior tube pin aperture, the exterior tube is retained in a fixed position along the interior tube.

2. The length adjustable concentric tube system of claim 1 , wherein the interior tube further comprises an alignment feature and wherein the exterior tube further comprises an alignment feature that aligns the interior tube alignment feature to prevent the exterior tube from spinning about the interior tube as the exterior tube is slide over the interior tube for length adjustment.

3. The length adjustable concentric tube system of claim 2, wherein the alignment feature of the exterior tube is a protrusion that extends radially inward.

4. The length adjustable concentric tube system of claim 3, wherein the alignment feature of the interior tube is a recess that extends radially inward and is aligned with the protrusion of the exterior tube alignment feature.

5. The length adjustable concentric tube system of claim 4, wherein the protrusion is a convex shape and the recess is concave shape.

6. The length adjustable concentric tube system of claim 1 , wherein the slider button comprises an elastomeric material configured to rebound to an original shape after depressing.

7. The length adjustable concentric tube system of claim 1 , wherein the spring body comprises: a) a spring loop; b) a pin extension extending from the pin to the spring loop; and c) a spring extension extending from the spring loop to an extended end of the spring body.

8. The length adjustable concentric tube system of claim 7, wherein the spring extension is attached to the interior tube.

9. The length adjustable concentric tube system of claim 7, wherein the spring body is compressed within the interior tube with the spring extension forced toward the pin extension.

10. The length adjustable concentric tube system of claim 1 , comprising a plurality of said spring pins configured within the interior tube, wherein each has a pin that extends through a respective interior tube pin aperture in the interior tube.11.The length adjustable concentric tube system of claim 1 , wherein the exterior tube is concentric with the interior tube.

12. The length adjustable concentric tube system of claim 1, wherein the concentric tube assembly is a multi-integrated concentric tube assembly having a plurality of said adjustment assemblies each coupled to a respective exterior tube and configured to slide over a respective interior tube.

13. The length adjustable concentric tube system of claim 12, wherein a first exterior tube is configured to slide over a first interior tube, and wherein a second exterior tube is configured to slide over a second interior tube and wherein the first interior tube is the second exterior tube.

14. The length adjustable concentric tube system of claim 1 , further comprising a Y- shaped receiver coupled to said first end of the concentric tube assembly, wherein the Y-shaped receiver comprises a first arm and a second arm forming a receiver yolk for a fishing rod.

15. The length adjustable concentric tube system of claim 14, further comprising an insert end coupled to the second end of the concentric tube assembly.

16. The length adjustable concentric tube system of claim 14, wherein the Y-shaped receiver is coupled to the exterior tube.

17. The length adjustable concentric tube system of claim 14, comprising a plurality of said spring pins configured within the interior tube, wherein each has a pin that extends through a respective interior tube pin aperture in the interior tube.

18. The length adjustable concentric tube system of claim 14, wherein the length of the concentric tube assembly is between 0.2m and 0.5m when in an extended configuration.

19. The length adjustable concentric tube system of claim 14, wherein the concentric tube assembly is a multi-integrated concentric tube assembly having a plurality of said adjustment assemblies each coupled to a respective exterior tube and configured to slide over a respective interior tube.

20. The length adjustable concentric tube system of claim 19, wherein a first exterior tube is configured to slide over a first interior tube, and wherein a second exterior tube is configured to slide over a second interior tube and wherein the first interior tube is the second exterior tube.21.A method of adjusting the length of the concentric tube assembly as described in claim 1, comprising: a) providing the length adjustable concentric tube system of claim 1 with a first pin of a first spring pin extending through a first interior tube pin aperture and through the exterior tube pin aperture to secure the exterior tube to the interior tube in a first fixed position; b) pressing the slider button of the adjustment assembly to depress the first pin of the first spring pin radially inward through the exterior tube pin aperture and out of the exterior tube pin aperture to enable the exterior tube to slide over and along the interior tube;c) sliding the exterior tube along the interior tube until a second pin of a second spring pin actuates to extend into the exterior tube pin aperture to secure the exterior tube in a second fixed position with respect to the exterior tube.

22. The method of claim 21 , comprising a three or more of said pins and said spring pins configured within the interior tube including the first and second pins and first and second spring pins.

23. The method of claim 21 , wherein the interior tube further comprises an alignment feature and wherein the exterior tube further comprises an alignment feature that aligns the interior tube alignment feature to prevent the exterior tube from spinning about the interior tube as the exterior tube is slide over the interior tube for length adjustment.

24. The method of claim 23, wherein the alignment feature of the exterior tube is a protrusion that extends radially inward.

25. The method of claim of claim 24, wherein the alignment feature of the interior tube is a recess that extends radially inward and is aligned with the protrusion of the exterior tube alignment feature.

26. The method of claim 25, wherein the protrusion is a convex shape and the recess is concave shape.

27. The method of claim 21 , wherein the slider button comprises an elastomeric material configured to rebound to an original shape after depressing.

28. The method of claim 21 , wherein the spring body comprises: a) a spring loop; b) a pin extension extending from the pin to the spring loop; and c) a spring extension extending from the spring loop to an extended end of the spring body.

29. The method of claim 28, wherein the spring extension is attached to the interior tube.

30. The method of claim 28, wherein the spring body is compressed within the interior tube with the spring extension forced toward the pin extension.31.The method of claim 21 , wherein the exterior tube is concentric with the interior tube.

32. The method of claim 21 , wherein the concentric tube assembly is a multiintegrated concentric tube assembly having a plurality of said adjustment assemblies each coupled to a respective exterior tube and configured to slide over a respective interior tube.

33. The method of claim 32, wherein a first exterior tube is configured to slide over a first interior tube, and wherein a second exterior tube is configured to slide over a second interior tube and wherein the first interior tube is the second exterior tube.

34. The method of claim 21 , further comprising a Y-shaped receiver coupled to said first end of the concentric tube assembly, wherein the Y-shaped receiver comprises a first arm and a second arm forming a receiver yolk for a fishing rod.

35. The method of claim 34, further comprising an insert end coupled to the second end of the concentric tube assembly.

36. The method of claim 34, wherein the Y-shaped receiver is coupled to the exterior tube.

37. The method of claim 34, comprising a plurality of said spring pins configured within the interior tube, wherein each has a pin that extends through a respective interior tube pin aperture in the interior tube.

38. The method of claim 34, wherein the length of the concentric tube assembly is between 0.2m and 0.5m when in an extended configuration.

39. The method of claim 34, wherein the concentric tube assembly is a multiintegrated concentric tube assembly having a plurality of said adjustment assemblies each coupled to a respective exterior tube and configured to slide over a respective interior tube.

40. The method of claim 39, wherein a first exterior tube is configured to slide over a first interior tube, and wherein a second exterior tube is configured to slide over a second interior tube and wherein the first interior tube is the second exterior tube.

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