US20180297102A1 - Systems and methods for deforming a tube within a cap - Google Patents
Systems and methods for deforming a tube within a cap Download PDFInfo
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- US20180297102A1 US20180297102A1 US15/913,604 US201815913604A US2018297102A1 US 20180297102 A1 US20180297102 A1 US 20180297102A1 US 201815913604 A US201815913604 A US 201815913604A US 2018297102 A1 US2018297102 A1 US 2018297102A1
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- Prior art keywords
- cap
- tubing
- alignment
- diameter
- tool
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- Abandoned
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 33
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 238000007373 indentation Methods 0.000 claims description 6
- 230000012447 hatching Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000008707 rearrangement Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/046—Connecting tubes to tube-like fittings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
Definitions
- Examples of the present disclosure are related to systems and methods for a perforating gun end cap attachment system. More particularly, embodiments relate to an actuator configured to deform and displace metal from a tube within a cap, wherein the deformed metal is configured to secure the tube and the cap.
- a perforation in the context of oil wells refers to a hole punched in a casing or liner of an oil well to connect it to the reservoir.
- the well In cased hole completions, the well is drilled past a section of the formation desired for production.
- the well will have a casing or liner run in that separates the formation from the well bore.
- Perforating guns may be position down to a desired depth, and fired. This will perforate the casing or the liner.
- Perforating guns are conventionally assembled using screws to couple caps to the end of tubing.
- the process to manually insert the screws into the tubing and caps is slow.
- the cost of screws can become a concern as well.
- Embodiments disclosed herein describe systems and methods for coupling a cap with tubing utilizing an actuator configured to deform metal from a perforation gun tube into recess, holes, or grooves (which are used interchangeably) within the cap, wherein the deformed metal is configured to secure the tube and the cap.
- Embodiments may include a perforation gun cap (referred to hereinafter as “cap”), perforation gun tubing (referred to hereinafter as “tubing”), and deforming tool.
- cap perforation gun cap
- tubing perforation gun tubing
- the cap may be configured to be positioned on an end of the tubing.
- the cap may include a first end, a second end, and holes, recesses or grooves.
- the first end of the cap may have a first diameter
- the second end may have a second diameter, wherein the first diameter is larger than the second diameter.
- the first end of the cap may be configured to be positioned outside of the tubing.
- the second end of the cap may be configured to be encompassed by the tubing.
- the holes may be orifices extending through the second end of the cap, wherein a first hole is vertically offset from a second hole.
- the tubing may be a cylindrical shaft with a hollow interior.
- the tubing may have metal sidewalls, which originally have a uniform thickness.
- the sidewalls may be formed of different rigid materials.
- the deforming tool may a linear actuating device, such as a hydraulic or pneumatic cylinder, configured to deform the metal sidewalls of the tubing. Responsive to deforming the metal sidewalls, portions of the metal sidewalls are positioned within the holes, recesses or grooves in the cap.
- the deforming tool may have a tip, shaft, and body. The tip may have a sharp edge that is configured to pierce through the sidewalls of the tubing.
- the shaft may have a length that is greater than the thickness of the sidewalls of the tubing, wherein the top may be positioned on a first end of the shaft and the body may be positioned on a second end of the shaft.
- the shaft may push portions of the side wall to deform the sidewall around the shaft. This may displace portions of the sidewall of the tubing within the holes to be positioned adjacent to an inner circumference of the hole.
- embodiments may be configured to couple caps with tubing without the use of fasteners or additional materials.
- Portions of the sidewall of the tubing may be configured to be deformed and displaced within holes, recesses or grooves in the cap to secure the tubing with the cap. Furthermore, by deforming portions of the tubing within the holes, recesses or grooves, the sidewalls of the tubing may no longer form a continuous surface.
- FIG. 1 depicts a system for coupling a cap 110 and tubing, according to an embodiment.
- FIG. 2 depicts a detailed view of deformation of metal sidewalls within a hole, according to an embodiment.
- FIG. 3 illustrates a method for coupling a cap with tubing, according to an embodiment.
- FIG. 4 depicts a cap being coupled to tubing after a dimple tool has deformed the sidewalls of the tubing, according to an embodiment.
- FIG. 5 depicts a view of a deformation of a tube.
- FIG. 6 depicts a view of a cap, according to an embodiment.
- FIG. 7 depicts a view of a deformation of a tube, according to an embodiment.
- FIG. 8 depicts a cap, according to an embodiment.
- FIG. 9 depicts a deformation tool, according to an embodiment.
- FIG. 10 depicts a view of a deformation of a tube, according to an embodiment.
- FIG. 11 depicts a cap, according to an embodiment.
- FIG. 12 depicts a deformation tool configured to deform a tab within a groove, according to an embodiment.
- FIG. 13 depicts a rotational locking system, according to an embodiment.
- FIG. 14 depicts a cap, according to an embodiment.
- FIG. 15 depicts an embodiment of locking members being inserted into lock receivers below a surface of a body, according to an embodiment.
- FIG. 16 depicts a rotational locking system, according to an embodiment.
- FIG. 17 depicts a cap, according to an embodiment.
- FIG. 18 depicts a cap, according to an embodiment.
- FIG. 19 depicts a first alignment tool, according to an embodiment.
- FIG. 20 depicts a tube, according to an embodiment.
- FIG. 21 depicts a second alignment tool, according to an embodiment.
- Embodiments disclosed herein describe systems and methods for coupling a cap with tubing utilizing a linear actuator configured to deform metal from a perforation gun tube into holes within the cap, wherein the deformed metal is configured to secure the tube and the cap.
- FIG. 1 depicts a system 100 for coupling a cap 110 and tubing 120 , according to an embodiment.
- System 100 may include cap 110 , tubing 120 , and dimple tool 130 .
- Cap 110 may be configured to be coupled with a distal end of tubing 120 .
- Cap 110 may include a first portion 112 and a second portion 114 .
- First portion 112 of cap 110 may have a larger outer diameter than second portion 114 .
- First portion 112 may have a lower surface that is configured to be positioned directly adjacent and over to a rim of a distal end of tubing 120 .
- the lower surface of first portion 112 may also create an overhang that projects away from the distal end of tubing 120 .
- Second portion 114 may be configured to be positioned within an inner diameter of tubing 120 , such that the sidewalls 122 of tubing 120 encompass the outer surface of second portion 114 . Second portion 114 may include holes 116 .
- Holes 116 may be positioned on the outer circumference of second portion 114 , extend through the entirety of the sidewalls associated with second portion 114 towards the longitudinal axis of cap 110 .
- First hole 116 positioned on a first side of cap 110 may be vertically offset from a second hole 116 positioned on a second side of cap 110 .
- holes 116 may be defined by sidewalls 118 that create a hollow passageway through holes 116 .
- Tubing 120 may be a cylindrical shaft with a hollow interior.
- Tubing 120 may include metal sidewalls 122 .
- the metal sidewalls 122 may initially extend from a proximal end to a distal end of tubing 120 forming a continuous outer circumference of tubing. Initially, sidewalls 122 may be formed of a uniform thickness, which may create a substantially constant inner diameter across the hollow interior.
- Dimple tool 130 may be a device configured to deform sidewalls 122 , such that portions 124 , 126 of sidewalls 122 are positioned within hole 116 .
- dimple tool 130 may be configured with a pneumatic, hydraulic, or electric actuator, or any device configured to create compressive forces, such as a scissor action pinching device.
- Dimple tool 130 may include a tip 132 , a shaft 134 , and body 136 .
- Tip 132 may be a sharp edge positioned on a distal end of dimple tool 130 .
- Tip 132 may be configured to pierce, perforate, puncture, etc. sidewalls 122 .
- tip 132 may be formed of any cutting surface.
- Shaft 134 may be positioned between body 136 and tip 132 .
- Shaft 134 may have a length that is longer than the thickness of sidewalls 122 , and may have a width that is smaller than a diameter across holes 116 . Based on the dimensions of shaft 134 , shaft 134 may be configured to traverse sidewalls 122 and extend into holes 116 . Responsive to tip 132 interfacing with sidewalls 122 , shaft 134 may push and relocate upper overhang 124 and lower overhang 126 within the holes.
- Body 136 may be positioned on a proximal end of dimple tool 130 .
- Body 136 may be configured to be positioned adjacent to portions of sidewall 136 responsive to inserting shaft 134 through sidewalls 122 .
- body 136 may have a width that is greater than that of shaft 134 and/or greater than a diameter of holes 116 . As such, the inward movement of dimple tool 130 may be restricted by the sizing of body 136 in relating to holes 118 .
- cap 110 may be configured to be inserted into tubing 120 .
- Portions sidewalls 122 of tubing 120 aligned within the longitudinal axis of holes 116 may be hatched, such that the hatching is aligned with the center of holes 116 . This may create vertically offset hatches on the opposite sides of tubing 120 .
- Tip 132 of dimple tool 130 may be positioned adjacent to the hatchings, and inserted through sidewalls 122 to deform sidewall 122 .
- holes 116 may be perforated, which may reduce the amount of stress and/or compressive forces necessary to deform sidewall 122 .
- the deformation of sidewall 122 may create an upper overhang 124 positioned over shaft 134 and adjacent to sidewall 118 of hole 110 , and may create a lower overhang 126 positioned under shaft 134 and adjacent to sidewall 118 of hole 110 .
- Upper overhang 124 and lower overhang 126 may be positioned within hole 110 , wherein the thickness of upper overhang 124 and lower overhang 126 may be half of the thickness of sidewall 122 due to deformations.
- the deformation of upper overhang 124 and lower overhang 126 may secure cap 110 with tubing 120 without additional elements (i.e. screws) being necessary to couple to two parts together. This may reduce the costs and timing required to secure cap 110 with tubing 120 .
- sidewalls 122 may occur in relation to both of the holes positioned within cap 110 .
- sidewalls 122 may be deformed within cap at different vertical offsets. This may create points of friction between cap 110 and tubing 120 at different locations, which may assist in securing cap 110 with tubing 120 .
- FIG. 2 depicts a detailed view of deformation 205 of metal sidewalls 122 within hole 116 . Elements depicted in FIG. 2 may be described above, and for the sake of brevity a further description of these elements is omitted.
- deformation 205 may be created within hole 116 to form a hollow, rounded passageway, wherein a distal end of deformation 205 may have a smaller diameter than that of a proximal end of deformation 205 . This may be due to the shape of dimple tool 130 , and requiring portions of metal sidewalls 122 to be positioned inside of hole to form upper overhang 124 and lower overhang 126 . As further depicted in FIG. 2 , the proximal end of deformation 205 may have a rounded conical end, to increase the width across deformation 205 to account for the repositioning of the metal sidewalls 122 .
- upper overhang 124 and lower overhang 126 the surface area between tubing 120 and cap 110 may increase 110 .
- upper overhang 124 and lower overhang 126 may be created by forming continuous contact between an outer surface of cap 110 and portions of the sidewalls 118 of holes with the metal sidewall 122 . This may assist in the semi-permanent securing of cap 110 and tubing 120 . Whereas, if screws were utilized to couple the two elements together, the two elements could be decoupled by merely removing the screws.
- FIG. 3 illustrates a method 300 for coupling a cap with tubing, according to an embodiment.
- the operations of method 300 presented below are intended to be illustrative. In some embodiments, method 300 may be accomplished with one or more additional operations not described, and/or without one or more of the operations discussed. Additionally, the order in which the operations of method 300 are illustrated in FIG. 3 and described below is not intended to be limiting.
- a cap may be positioned on an end of tubing.
- a portion of the cap may be positioned within the tubing, such that metal sidewalls of the tubing encompass portions of the cap. Additionally, another portion of the cap may be positioned over the rim of the tubing to seal the end of the tubing.
- portions of the metal sidewalls that are aligned with holes extending through the cap may be hatched, scored, notched, etc.
- the hatching may be located along a central axis of the holes.
- a tip of a dimple tool may be aligned with the hatching, and the dimple tool may puncture, perforate, and/or deform the metal sidewalls of the tubing aligned with the holes.
- the dimple tool may displace portions of the metal sidewalls within the holes, such that portions of the metal sidewalls are placed adjacent to the inner circumference of the holes.
- the deformed metal may extend in a direction that is perpendicular to that or the tubing, and in parallel to the central axis of the holes.
- the cap and the tubing may be coupled together to form a unitary part.
- the deformed metal may couple the parts together by increasing the surface area of the metal positioned adjacent to the inner circumference of the hole.
- FIG. 4 depicts cap 110 being coupled to tubing 120 after dimple tool 130 has deformed the sidewalls of tubing 120 , according to an embodiment.
- FIG. 5 depicts a detailed view of deformation 530 of tube 500 . Elements depicted in FIG. 5 may be described above, and for the sake of brevity a further description of these elements is omitted.
- tube 500 may include a pair of parallel notches 505 , 510 positioned on the outer circumference of tube 500 .
- the pair of parallel notches 505 , 510 may be configured to be aligned with a groove within a cap.
- a space between the parallel notches 505 , 510 may be deformed 530 to be inserted into the groove in the cap, wherein upper and lower boundaries of the groove in the cap may secure the deformation 530 within the cap.
- Tube 500 may be deformed by applying pressure between parallel notches 505 , 510 in a direction towards the central axis of tube 500 . Responsive to applying the pressure, the deformation 530 may become perforated along notches 505 , 510 , while the ends of deformation 530 remain attached to tube 500 .
- FIG. 6 depicts a detailed view of cap 600 , according to an embodiment. Elements depicted in FIG. 6 may be described above, and for the sake of brevity a further description of these elements is omitted.
- cap 600 may include a groove 610 .
- Groove 610 may be an indentation, ridge, etc. that extends around a circumference of cap 600 .
- Groove 610 may be configured to receive deformation 530 , such that the upper and lower edges of deformation 610 are positioned within groove 610 . This relative positioning of deformation 610 within groove may limit the vertical movement of cap 600 .
- FIG. 7 depicts a view of deformation 710 of tube 700 , according to an embodiment. Elements depicted in FIG. 7 may be described above, and for the sake of brevity a further description of these elements is omitted.
- an end of tube 700 may be deformed 710 to have a taper.
- the taper may be sloped towards the end and the central axis of tube 700 .
- the deformation 710 may be configured to be inserted into a groove within a cap to couple tube 700 with the cap.
- FIG. 8 depicts a cap 800 , according to an embodiment. Elements depicted in FIG. 8 may be described above, and for the sake of brevity a further description of these elements is omitted.
- cap 800 may include a groove 810 that is formed of a tapered sidewall and a planar base, wherein the tapering of the sidewall corresponds with the tapering of deformation 710 .
- deformation 710 may be configured to be aligned with groove 810 , such that the end of deformation 710 is positioned against the planar base, and the body of the deformation 810 is positioned against the tapered sidewall. By positioning deformation 710 within groove 810 the vertical movement of cap 800 may be limited.
- FIG. 9 depicts a deformation tool 900 , according to an embodiment. Elements depicted in FIG. 9 may be described above, and for the sake of brevity a further description of these elements is omitted.
- an end of tube 700 may be positioned adjacent to a base of groove 810 .
- Deformation tool 900 may be an actuator that is configured to encompass an outer circumference of tube 700 , and apply forces against tube 700 towards the central axis of tube 700 .
- deformation tool 900 may be formed of multiple parts that create with an inner circumference 910 having tapered sidewalls that correspond with the tapering of groove 810 . Responsive to tube receiving the forces, the shape of inner circumference 910 may form deformation 710 with tapered sidewalls.
- FIG. 10 depicts a view of deformation 1010 of tube 1000 , according to an embodiment. Elements depicted in FIG. 10 may be described above, and for the sake of brevity a further description of these elements is omitted.
- tube 1000 may include a plurality of tabs 1010 that can be pressed inward.
- the tabs 1010 may be configured to be deformed within a groove of a cap.
- the tabs 1010 may be configured to be deformed at an angle that is substantially perpendicular to the central axis of tube 1010 , such that the deformed tab 1010 may be pressed against a planar upper surface of the groove in the cap.
- FIG. 11 depicts a cap 1100 , according to an embodiment. Elements depicted in FIG. 11 may be described above, and for the sake of brevity a further description of these elements is omitted.
- cap 1100 may have a cap with a groove 1110 .
- Groove 1110 may have a planar top surface that is configured to receive tab 1010 . Responsive to tab 1010 being placed against the upper surface of groove 1110 , the vertical movement of cap 1110 may be reduced.
- FIG. 12 depicts a deformation tool 1210 configured to deform tab 1010 within groove 1110 , according to an embodiment. Elements depicted in FIG. 12 may be described above, and for the sake of brevity a further description of these elements is omitted.
- deformation tool 1210 may be configured to move towards the central axis of tube 1000 to press tab 1010 within groove 1110 , such that tab 1010 is positioned adjacent to the upper surface of groove 1110 .
- FIG. 13 depicts a rotational locking system 1300 , according to an embodiment. Elements depicted in FIG. 13 may be described above, and for the sake of brevity a further description of these elements is omitted.
- Rotational locking system 1300 may include a set of locking members 1310 that project away from an end of tube 122 .
- rotational locking members 1310 may be offset ninety degrees from deformations 124 within tube 122 .
- Locking members 1310 may be configured to be inserted into lock receivers within a cap to limit the rotational movement of tube 122 when tube 122 is coupled with the cap.
- locking members 1310 may be utilized to align tube 122 with the cab to assist in the deformation of tube 122 .
- FIG. 14 depicts a cap 1400 , according to an embodiment. Elements depicted in FIG. 14 may be described above, and for the sake of brevity a further description of these elements is omitted.
- cap 1400 may include lock receivers 1405 .
- Lock receivers 1405 may be grooves, cutouts, depressions, etc. that are positioned on a circumference of cap 1400 .
- Lock receivers 1405 may extend into a body 1410 of cap 1400 such that the body 1410 of lock receivers 1405 may be positioned adjacent to the edges of locking members 1310 when locking members 1310 are inserted into body 1410 .
- the rotational movement of cap 1400 relative to tube 122 may be limited.
- FIG. 15 depicts an embodiment of locking members 1310 being inserted into lock receivers 1405 below a surface of body 1410 .
- FIG. 16 depicts a rotational locking system 1600 , according to an embodiment. Elements depicted in FIG. 13 may be described above, and for the sake of brevity a further description of these elements is omitted.
- Rotational locking system 1600 may include a set of locking members 1610 that are grooves, indentations, etc. into tube 122 from an end of tube 122 .
- rotational locking members 1610 may be offset ninety degrees from deformations 124 within tube 122 .
- Locking members 1610 may be configured to receive locking projections within a cap to limit the rotational movement of tube 122 when tube 122 is coupled with the cap.
- locking members 1610 may be configured to align holes within the cap with deformations 124 .
- FIG. 17 depicts a cap 1700 , according to an embodiment. Elements depicted in FIG. 17 may be described above, and for the sake of brevity a further description of these elements is omitted.
- cap 1700 may include locking projections 1705 .
- Locking projections 1705 may be projections, abutments, etc. that are extend away from a circumference of cap 1400 .
- Locking projections 1705 may extend along a body 1710 of cap 1700 . Responsive to locking projections 1705 receiving locking members 1610 , an inner circumference of tube 122 may be positioned adjacent to body 1710 . When locking members 1610 are inserted into locking projections 1705 , the rotational movement of cap 1700 relative to tube 122 may be limited.
- FIG. 18 depicts a cap 1800 , according to an embodiment.
- FIG. 19 depicts a first alignment tool 1900 , according to an embodiment.
- FIG. 20 depicts a tube 2010 , according to an embodiment.
- FIG. 21 depicts a second alignment tool 2100 , according to an embodiment. Elements depicted in FIGS. 18-21 may be described above, and for the sake of brevity a further description of these elements is omitted.
- Cap 1800 may include an alignment orifice 1810 that is configured to assist in the alignment of cap 1800 with a deformation tool.
- Alignment orifice 1810 may be a hole, cavity, etc. positioned on a face of cap 1800 .
- an angular offset between alignment orifice and holes 116 may be a known angular offset, such as ninety degrees.
- First Alignment tool 1900 may be configured to assist in aligning cap 1800 and/or a tube with a deformation tool.
- First Alignment tool 1900 may include an inner projection 1905 and alignment projection 1905 .
- Inner projection 1905 may be configured to be inserted into an inner circumference of cap 1800
- alignment projection 1905 may be configured to be positioned within alignment orifice 1810 . This may limit the rotation of cap 1800 while a deformation tool, such as an actuator, deforms metal within hole 116 .
- Tube 2000 may include a second alignment orifice 2010 , which is positioned through a circumference of tube 2000 .
- Second alignment orifice 2010 may be positioned at a known angular offset from hatching 2015 where a deformation is made to tube 2000 .
- the angular offset may be ninety degrees.
- Second alignment orifice may be configured to receive a second alignment tool 2100 , which may be coupled to first alignment tool 1900 .
- second alignment orifice 2010 may extend in a plane that is perpendicular to that of alignment projection 1905 .
- second alignment orifice 2010 may extend along an x-axis, and alignment projection 1905 may extend in a y-axis.
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Abstract
Description
- Examples of the present disclosure are related to systems and methods for a perforating gun end cap attachment system. More particularly, embodiments relate to an actuator configured to deform and displace metal from a tube within a cap, wherein the deformed metal is configured to secure the tube and the cap.
- A perforation in the context of oil wells refers to a hole punched in a casing or liner of an oil well to connect it to the reservoir. In cased hole completions, the well is drilled past a section of the formation desired for production. The well will have a casing or liner run in that separates the formation from the well bore. Perforating guns may be position down to a desired depth, and fired. This will perforate the casing or the liner.
- Perforating guns are conventionally assembled using screws to couple caps to the end of tubing. However, the process to manually insert the screws into the tubing and caps is slow. Furthermore, the cost of screws can become a concern as well.
- Accordingly, needs exist for more effective and efficient systems and methods for coupling a cap with tubing utilizing an actuator configured to deform metal from a tube into holes or grooves within the cap, wherein the deformed metal is configured to couple the tube and the cap.
- Embodiments disclosed herein describe systems and methods for coupling a cap with tubing utilizing an actuator configured to deform metal from a perforation gun tube into recess, holes, or grooves (which are used interchangeably) within the cap, wherein the deformed metal is configured to secure the tube and the cap.
- Embodiments may include a perforation gun cap (referred to hereinafter as “cap”), perforation gun tubing (referred to hereinafter as “tubing”), and deforming tool.
- The cap may be configured to be positioned on an end of the tubing. The cap may include a first end, a second end, and holes, recesses or grooves. The first end of the cap may have a first diameter, and the second end may have a second diameter, wherein the first diameter is larger than the second diameter. The first end of the cap may be configured to be positioned outside of the tubing. The second end of the cap may be configured to be encompassed by the tubing. The holes may be orifices extending through the second end of the cap, wherein a first hole is vertically offset from a second hole.
- The tubing may be a cylindrical shaft with a hollow interior. In embodiments the tubing may have metal sidewalls, which originally have a uniform thickness. However, in other embodiments, the sidewalls may be formed of different rigid materials.
- The deforming tool may a linear actuating device, such as a hydraulic or pneumatic cylinder, configured to deform the metal sidewalls of the tubing. Responsive to deforming the metal sidewalls, portions of the metal sidewalls are positioned within the holes, recesses or grooves in the cap. The deforming tool may have a tip, shaft, and body. The tip may have a sharp edge that is configured to pierce through the sidewalls of the tubing. The shaft may have a length that is greater than the thickness of the sidewalls of the tubing, wherein the top may be positioned on a first end of the shaft and the body may be positioned on a second end of the shaft. Responsive to inserting the dimple tool through the sidewall of the tubing, the shaft may push portions of the side wall to deform the sidewall around the shaft. This may displace portions of the sidewall of the tubing within the holes to be positioned adjacent to an inner circumference of the hole.
- To this end, embodiments may be configured to couple caps with tubing without the use of fasteners or additional materials. Portions of the sidewall of the tubing may be configured to be deformed and displaced within holes, recesses or grooves in the cap to secure the tubing with the cap. Furthermore, by deforming portions of the tubing within the holes, recesses or grooves, the sidewalls of the tubing may no longer form a continuous surface.
- These, and other, aspects of the invention will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. The following description, while indicating various embodiments of the invention and numerous specific details thereof, is given by way of illustration and not of limitation. Many substitutions, modifications, additions or rearrangements may be made within the scope of the invention, and the invention includes all such substitutions, modifications, additions or rearrangements.
- Non-limiting and non-exhaustive embodiments of the present invention are described with reference to the following figures, wherein like reference numerals refer to like parts throughout the various views unless otherwise specified.
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FIG. 1 depicts a system for coupling acap 110 and tubing, according to an embodiment. -
FIG. 2 depicts a detailed view of deformation of metal sidewalls within a hole, according to an embodiment. -
FIG. 3 illustrates a method for coupling a cap with tubing, according to an embodiment. -
FIG. 4 depicts a cap being coupled to tubing after a dimple tool has deformed the sidewalls of the tubing, according to an embodiment. -
FIG. 5 depicts a view of a deformation of a tube. -
FIG. 6 depicts a view of a cap, according to an embodiment. -
FIG. 7 depicts a view of a deformation of a tube, according to an embodiment. -
FIG. 8 depicts a cap, according to an embodiment. -
FIG. 9 depicts a deformation tool, according to an embodiment. -
FIG. 10 depicts a view of a deformation of a tube, according to an embodiment. -
FIG. 11 depicts a cap, according to an embodiment. -
FIG. 12 depicts a deformation tool configured to deform a tab within a groove, according to an embodiment. -
FIG. 13 depicts a rotational locking system, according to an embodiment. -
FIG. 14 depicts a cap, according to an embodiment. -
FIG. 15 depicts an embodiment of locking members being inserted into lock receivers below a surface of a body, according to an embodiment. -
FIG. 16 depicts a rotational locking system, according to an embodiment. -
FIG. 17 depicts a cap, according to an embodiment. -
FIG. 18 depicts a cap, according to an embodiment. -
FIG. 19 depicts a first alignment tool, according to an embodiment. -
FIG. 20 depicts a tube, according to an embodiment. -
FIG. 21 depicts a second alignment tool, according to an embodiment. - Corresponding reference characters indicate corresponding components throughout the several views of the drawings. Skilled artisans will appreciate that elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help to improve understanding of various embodiments of the present disclosure. Also, common but well-understood elements that are useful or necessary in a commercially feasible embodiment are often not depicted in order to facilitate a less obstructed view of these various embodiments of the present disclosure.
- In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present embodiments. It will be apparent, however, to one having ordinary skill in the art that the specific detail need not be employed to practice the present embodiments. In other instances, well-known materials or methods have not been described in detail in order to avoid obscuring the present embodiments.
- Embodiments disclosed herein describe systems and methods for coupling a cap with tubing utilizing a linear actuator configured to deform metal from a perforation gun tube into holes within the cap, wherein the deformed metal is configured to secure the tube and the cap.
-
FIG. 1 depicts asystem 100 for coupling acap 110 andtubing 120, according to an embodiment.System 100 may includecap 110,tubing 120, anddimple tool 130. -
Cap 110 may be configured to be coupled with a distal end oftubing 120.Cap 110 may include afirst portion 112 and asecond portion 114.First portion 112 ofcap 110 may have a larger outer diameter thansecond portion 114.First portion 112 may have a lower surface that is configured to be positioned directly adjacent and over to a rim of a distal end oftubing 120. The lower surface offirst portion 112 may also create an overhang that projects away from the distal end oftubing 120. -
Second portion 114 may be configured to be positioned within an inner diameter oftubing 120, such that thesidewalls 122 oftubing 120 encompass the outer surface ofsecond portion 114.Second portion 114 may includeholes 116. -
Holes 116 may be positioned on the outer circumference ofsecond portion 114, extend through the entirety of the sidewalls associated withsecond portion 114 towards the longitudinal axis ofcap 110.First hole 116 positioned on a first side ofcap 110 may be vertically offset from asecond hole 116 positioned on a second side ofcap 110. In embodiments, holes 116 may be defined by sidewalls 118 that create a hollow passageway throughholes 116. -
Tubing 120 may be a cylindrical shaft with a hollow interior.Tubing 120 may includemetal sidewalls 122. The metal sidewalls 122 may initially extend from a proximal end to a distal end oftubing 120 forming a continuous outer circumference of tubing. Initially, sidewalls 122 may be formed of a uniform thickness, which may create a substantially constant inner diameter across the hollow interior. -
Dimple tool 130 may be a device configured to deformsidewalls 122, such thatportions sidewalls 122 are positioned withinhole 116. For example,dimple tool 130 may be configured with a pneumatic, hydraulic, or electric actuator, or any device configured to create compressive forces, such as a scissor action pinching device.Dimple tool 130 may include atip 132, ashaft 134, andbody 136. -
Tip 132 may be a sharp edge positioned on a distal end ofdimple tool 130.Tip 132 may be configured to pierce, perforate, puncture, etc.sidewalls 122. In embodiments,tip 132 may be formed of any cutting surface. -
Shaft 134 may be positioned betweenbody 136 andtip 132.Shaft 134 may have a length that is longer than the thickness ofsidewalls 122, and may have a width that is smaller than a diameter across holes 116. Based on the dimensions ofshaft 134,shaft 134 may be configured to traversesidewalls 122 and extend intoholes 116. Responsive to tip 132 interfacing withsidewalls 122,shaft 134 may push and relocateupper overhang 124 andlower overhang 126 within the holes. -
Body 136 may be positioned on a proximal end ofdimple tool 130.Body 136 may be configured to be positioned adjacent to portions ofsidewall 136 responsive to insertingshaft 134 throughsidewalls 122. In embodiments,body 136 may have a width that is greater than that ofshaft 134 and/or greater than a diameter ofholes 116. As such, the inward movement ofdimple tool 130 may be restricted by the sizing ofbody 136 in relating to holes 118. - In implementations,
cap 110 may be configured to be inserted intotubing 120. Portions sidewalls 122 oftubing 120 aligned within the longitudinal axis ofholes 116 may be hatched, such that the hatching is aligned with the center ofholes 116. This may create vertically offset hatches on the opposite sides oftubing 120.Tip 132 ofdimple tool 130 may be positioned adjacent to the hatchings, and inserted throughsidewalls 122 to deformsidewall 122. Furthermore, holes 116 may be perforated, which may reduce the amount of stress and/or compressive forces necessary to deformsidewall 122. - The deformation of
sidewall 122 may create anupper overhang 124 positioned overshaft 134 and adjacent to sidewall 118 ofhole 110, and may create alower overhang 126 positioned undershaft 134 and adjacent to sidewall 118 ofhole 110.Upper overhang 124 andlower overhang 126 may be positioned withinhole 110, wherein the thickness ofupper overhang 124 andlower overhang 126 may be half of the thickness ofsidewall 122 due to deformations. The deformation ofupper overhang 124 andlower overhang 126 may securecap 110 withtubing 120 without additional elements (i.e. screws) being necessary to couple to two parts together. This may reduce the costs and timing required to securecap 110 withtubing 120. - Furthermore, the deformations of
sidewalls 122 may occur in relation to both of the holes positioned withincap 110. Thus, sidewalls 122 may be deformed within cap at different vertical offsets. This may create points of friction betweencap 110 andtubing 120 at different locations, which may assist in securingcap 110 withtubing 120. -
FIG. 2 depicts a detailed view ofdeformation 205 ofmetal sidewalls 122 withinhole 116. Elements depicted inFIG. 2 may be described above, and for the sake of brevity a further description of these elements is omitted. - As depicted in
FIG. 2 ,deformation 205 may be created withinhole 116 to form a hollow, rounded passageway, wherein a distal end ofdeformation 205 may have a smaller diameter than that of a proximal end ofdeformation 205. This may be due to the shape ofdimple tool 130, and requiring portions ofmetal sidewalls 122 to be positioned inside of hole to formupper overhang 124 andlower overhang 126. As further depicted inFIG. 2 , the proximal end ofdeformation 205 may have a rounded conical end, to increase the width acrossdeformation 205 to account for the repositioning of themetal sidewalls 122. - Furthermore, by creating
upper overhang 124 andlower overhang 126 the surface area betweentubing 120 andcap 110 may increase 110. Additionally,upper overhang 124 andlower overhang 126 may be created by forming continuous contact between an outer surface ofcap 110 and portions of thesidewalls 118 of holes with themetal sidewall 122. This may assist in the semi-permanent securing ofcap 110 andtubing 120. Whereas, if screws were utilized to couple the two elements together, the two elements could be decoupled by merely removing the screws. -
FIG. 3 illustrates amethod 300 for coupling a cap with tubing, according to an embodiment. The operations ofmethod 300 presented below are intended to be illustrative. In some embodiments,method 300 may be accomplished with one or more additional operations not described, and/or without one or more of the operations discussed. Additionally, the order in which the operations ofmethod 300 are illustrated inFIG. 3 and described below is not intended to be limiting. - At
operation 310, a cap may be positioned on an end of tubing. A portion of the cap may be positioned within the tubing, such that metal sidewalls of the tubing encompass portions of the cap. Additionally, another portion of the cap may be positioned over the rim of the tubing to seal the end of the tubing. - At
operation 320, portions of the metal sidewalls that are aligned with holes extending through the cap may be hatched, scored, notched, etc. The hatching may be located along a central axis of the holes. - At
operation 330, a tip of a dimple tool may be aligned with the hatching, and the dimple tool may puncture, perforate, and/or deform the metal sidewalls of the tubing aligned with the holes. Specifically, the dimple tool may displace portions of the metal sidewalls within the holes, such that portions of the metal sidewalls are placed adjacent to the inner circumference of the holes. The deformed metal may extend in a direction that is perpendicular to that or the tubing, and in parallel to the central axis of the holes. - At
operation 340, due to the deformation of the metal sidewalls, the cap and the tubing may be coupled together to form a unitary part. The deformed metal may couple the parts together by increasing the surface area of the metal positioned adjacent to the inner circumference of the hole. - At
operation 350, the dimple tool may be removed from the cap and tubing, wherein the dimple tool may be utilized to couple a second cap and tubing together. -
FIG. 4 depictscap 110 being coupled totubing 120 afterdimple tool 130 has deformed the sidewalls oftubing 120, according to an embodiment. -
FIG. 5 depicts a detailed view ofdeformation 530 oftube 500. Elements depicted inFIG. 5 may be described above, and for the sake of brevity a further description of these elements is omitted. - As depicted in
FIG. 5 ,tube 500 may include a pair ofparallel notches tube 500. The pair ofparallel notches parallel notches deformation 530 within the cap.Tube 500 may be deformed by applying pressure betweenparallel notches tube 500. Responsive to applying the pressure, thedeformation 530 may become perforated alongnotches deformation 530 remain attached totube 500. - Furthermore, there may be multiple pairs of
parallel notches tube 500, The other pairs ofparallel notches tube 500 and the cap. -
FIG. 6 depicts a detailed view ofcap 600, according to an embodiment. Elements depicted inFIG. 6 may be described above, and for the sake of brevity a further description of these elements is omitted. - AS depicted in
FIG. 6 ,cap 600 may include agroove 610. Groove 610 may be an indentation, ridge, etc. that extends around a circumference ofcap 600. Groove 610 may be configured to receivedeformation 530, such that the upper and lower edges ofdeformation 610 are positioned withingroove 610. This relative positioning ofdeformation 610 within groove may limit the vertical movement ofcap 600. -
FIG. 7 depicts a view ofdeformation 710 oftube 700, according to an embodiment. Elements depicted inFIG. 7 may be described above, and for the sake of brevity a further description of these elements is omitted. - As depicted in
FIG. 7 , an end oftube 700 may be deformed 710 to have a taper. The taper may be sloped towards the end and the central axis oftube 700. Thedeformation 710 may be configured to be inserted into a groove within a cap tocouple tube 700 with the cap. -
FIG. 8 depicts acap 800, according to an embodiment. Elements depicted inFIG. 8 may be described above, and for the sake of brevity a further description of these elements is omitted. - As depicted in
FIG. 8 ,cap 800 may include agroove 810 that is formed of a tapered sidewall and a planar base, wherein the tapering of the sidewall corresponds with the tapering ofdeformation 710. In implementations,deformation 710 may be configured to be aligned withgroove 810, such that the end ofdeformation 710 is positioned against the planar base, and the body of thedeformation 810 is positioned against the tapered sidewall. By positioningdeformation 710 withingroove 810 the vertical movement ofcap 800 may be limited. -
FIG. 9 depicts adeformation tool 900, according to an embodiment. Elements depicted inFIG. 9 may be described above, and for the sake of brevity a further description of these elements is omitted. - As depicted in
FIG. 9 , an end oftube 700 may be positioned adjacent to a base ofgroove 810.Deformation tool 900 may be an actuator that is configured to encompass an outer circumference oftube 700, and apply forces againsttube 700 towards the central axis oftube 700. - Furthermore,
deformation tool 900 may be formed of multiple parts that create with aninner circumference 910 having tapered sidewalls that correspond with the tapering ofgroove 810. Responsive to tube receiving the forces, the shape ofinner circumference 910 may formdeformation 710 with tapered sidewalls. -
FIG. 10 depicts a view ofdeformation 1010 oftube 1000, according to an embodiment. Elements depicted inFIG. 10 may be described above, and for the sake of brevity a further description of these elements is omitted. - As depicted in
FIG. 10 ,tube 1000 may include a plurality oftabs 1010 that can be pressed inward. Thetabs 1010 may be configured to be deformed within a groove of a cap. In implementations, thetabs 1010 may be configured to be deformed at an angle that is substantially perpendicular to the central axis oftube 1010, such that thedeformed tab 1010 may be pressed against a planar upper surface of the groove in the cap. -
FIG. 11 depicts acap 1100, according to an embodiment. Elements depicted inFIG. 11 may be described above, and for the sake of brevity a further description of these elements is omitted. - As depicted in
FIG. 11 ,cap 1100 may have a cap with agroove 1110.Groove 1110 may have a planar top surface that is configured to receivetab 1010. Responsive totab 1010 being placed against the upper surface ofgroove 1110, the vertical movement ofcap 1110 may be reduced. -
FIG. 12 depicts adeformation tool 1210 configured to deformtab 1010 withingroove 1110, according to an embodiment. Elements depicted inFIG. 12 may be described above, and for the sake of brevity a further description of these elements is omitted. - As depicted in
FIG. 12 ,deformation tool 1210 may be configured to move towards the central axis oftube 1000 to presstab 1010 withingroove 1110, such thattab 1010 is positioned adjacent to the upper surface ofgroove 1110.FIG. 13 depicts arotational locking system 1300, according to an embodiment. Elements depicted inFIG. 13 may be described above, and for the sake of brevity a further description of these elements is omitted. -
Rotational locking system 1300 may include a set of lockingmembers 1310 that project away from an end oftube 122. In embodiments,rotational locking members 1310 may be offset ninety degrees fromdeformations 124 withintube 122. Lockingmembers 1310 may be configured to be inserted into lock receivers within a cap to limit the rotational movement oftube 122 whentube 122 is coupled with the cap. Furthermore, lockingmembers 1310 may be utilized to aligntube 122 with the cab to assist in the deformation oftube 122. -
FIG. 14 depicts acap 1400, according to an embodiment. Elements depicted inFIG. 14 may be described above, and for the sake of brevity a further description of these elements is omitted. - As depicted in
FIG. 14 ,cap 1400 may includelock receivers 1405.Lock receivers 1405 may be grooves, cutouts, depressions, etc. that are positioned on a circumference ofcap 1400.Lock receivers 1405 may extend into abody 1410 ofcap 1400 such that thebody 1410 oflock receivers 1405 may be positioned adjacent to the edges of lockingmembers 1310 when lockingmembers 1310 are inserted intobody 1410. When lockingmembers 1310 are inserted intolock receivers 1405 andbody 1410, the rotational movement ofcap 1400 relative totube 122 may be limited. -
FIG. 15 depicts an embodiment of lockingmembers 1310 being inserted intolock receivers 1405 below a surface ofbody 1410. -
FIG. 16 depicts arotational locking system 1600, according to an embodiment. Elements depicted inFIG. 13 may be described above, and for the sake of brevity a further description of these elements is omitted. -
Rotational locking system 1600 may include a set of lockingmembers 1610 that are grooves, indentations, etc. intotube 122 from an end oftube 122. In embodiments,rotational locking members 1610 may be offset ninety degrees fromdeformations 124 withintube 122. Lockingmembers 1610 may be configured to receive locking projections within a cap to limit the rotational movement oftube 122 whentube 122 is coupled with the cap. Furthermore, lockingmembers 1610 may be configured to align holes within the cap withdeformations 124. -
FIG. 17 depicts acap 1700, according to an embodiment. Elements depicted inFIG. 17 may be described above, and for the sake of brevity a further description of these elements is omitted. - As depicted in
FIG. 17 ,cap 1700 may include lockingprojections 1705. Lockingprojections 1705 may be projections, abutments, etc. that are extend away from a circumference ofcap 1400. Lockingprojections 1705 may extend along abody 1710 ofcap 1700. Responsive to lockingprojections 1705receiving locking members 1610, an inner circumference oftube 122 may be positioned adjacent tobody 1710. When lockingmembers 1610 are inserted into lockingprojections 1705, the rotational movement ofcap 1700 relative totube 122 may be limited. -
FIG. 18 depicts acap 1800, according to an embodiment.FIG. 19 depicts afirst alignment tool 1900, according to an embodiment.FIG. 20 depicts atube 2010, according to an embodiment.FIG. 21 depicts asecond alignment tool 2100, according to an embodiment. Elements depicted inFIGS. 18-21 may be described above, and for the sake of brevity a further description of these elements is omitted. -
Cap 1800 may include analignment orifice 1810 that is configured to assist in the alignment ofcap 1800 with a deformation tool.Alignment orifice 1810 may be a hole, cavity, etc. positioned on a face ofcap 1800. In embodiments, an angular offset between alignment orifice and holes 116 may be a known angular offset, such as ninety degrees. -
First Alignment tool 1900 may be configured to assist in aligningcap 1800 and/or a tube with a deformation tool.First Alignment tool 1900 may include aninner projection 1905 andalignment projection 1905.Inner projection 1905 may be configured to be inserted into an inner circumference ofcap 1800, andalignment projection 1905 may be configured to be positioned withinalignment orifice 1810. This may limit the rotation ofcap 1800 while a deformation tool, such as an actuator, deforms metal withinhole 116. -
Tube 2000 may include asecond alignment orifice 2010, which is positioned through a circumference oftube 2000.Second alignment orifice 2010 may be positioned at a known angular offset from hatching 2015 where a deformation is made totube 2000. For example, the angular offset may be ninety degrees. Second alignment orifice may be configured to receive asecond alignment tool 2100, which may be coupled tofirst alignment tool 1900. In embodiments,second alignment orifice 2010 may extend in a plane that is perpendicular to that ofalignment projection 1905. For example,second alignment orifice 2010 may extend along an x-axis, andalignment projection 1905 may extend in a y-axis. By aligningtube 2000 andcap 1900 in multiple axis via the coupledfirst alignment tool 1900 andsecond alignment 2100, adeformation tool 2105 may deform portions of tool aligned with hatching 2015 withinhole 116. - Although the present technology has been described in detail for the purpose of illustration based on what is currently considered to be the most practical and preferred implementations, it is to be understood that such detail is solely for that purpose and that the technology is not limited to the disclosed implementations, but, on the contrary, is intended to cover modifications and equivalent arrangements that are within the spirit and scope of the appended claims. For example, it is to be understood that the present technology contemplates that, to the extent possible, one or more features of any implementation can be combined with one or more features of any other implementation.
- Reference throughout this specification to “one embodiment”, “an embodiment”, “one example” or “an example” means that a particular feature, structure or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present invention. Thus, appearances of the phrases “in one embodiment”, “in an embodiment”, “one example” or “an example” in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures or characteristics may be combined in any suitable combinations and/or sub-combinations in one or more embodiments or examples. In addition, it is appreciated that the figures provided herewith are for explanation purposes to persons ordinarily skilled in the art and that the drawings are not necessarily drawn to scale and/or reference a single embodiment.
Claims (20)
Priority Applications (1)
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US15/913,604 US20180297102A1 (en) | 2017-04-12 | 2018-03-06 | Systems and methods for deforming a tube within a cap |
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US201762484768P | 2017-04-12 | 2017-04-12 | |
US15/913,604 US20180297102A1 (en) | 2017-04-12 | 2018-03-06 | Systems and methods for deforming a tube within a cap |
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US20180297102A1 true US20180297102A1 (en) | 2018-10-18 |
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US15/913,604 Abandoned US20180297102A1 (en) | 2017-04-12 | 2018-03-06 | Systems and methods for deforming a tube within a cap |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3610122A4 (en) * | 2017-04-13 | 2020-12-30 | Hunting Titan, Inc. | Crimped attachment of end fitting to charge tube |
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US2429293A (en) * | 1943-06-30 | 1947-10-21 | Parsons Engineering Corp | Method of making rollers |
US2957734A (en) * | 1956-10-02 | 1960-10-25 | Dura Corp | Hydraulic cylinder |
US3811367A (en) * | 1972-05-01 | 1974-05-21 | C Bimba | Fluid power cylinder construction |
US4087897A (en) * | 1976-03-22 | 1978-05-09 | Airmatic/Beckett-Harcum, Inc. | Method of making an end connection to a fluid power cylinder and product |
US7614133B2 (en) * | 2002-05-15 | 2009-11-10 | Karborek S.R.L. | Method for closing a hydraulic, pneumatic and/or oleopneumatic cylinder and means for implementing thereof |
-
2018
- 2018-03-06 US US15/913,604 patent/US20180297102A1/en not_active Abandoned
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US2429293A (en) * | 1943-06-30 | 1947-10-21 | Parsons Engineering Corp | Method of making rollers |
US2957734A (en) * | 1956-10-02 | 1960-10-25 | Dura Corp | Hydraulic cylinder |
US3811367A (en) * | 1972-05-01 | 1974-05-21 | C Bimba | Fluid power cylinder construction |
US4087897A (en) * | 1976-03-22 | 1978-05-09 | Airmatic/Beckett-Harcum, Inc. | Method of making an end connection to a fluid power cylinder and product |
US7614133B2 (en) * | 2002-05-15 | 2009-11-10 | Karborek S.R.L. | Method for closing a hydraulic, pneumatic and/or oleopneumatic cylinder and means for implementing thereof |
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EP3610122A4 (en) * | 2017-04-13 | 2020-12-30 | Hunting Titan, Inc. | Crimped attachment of end fitting to charge tube |
US11261711B2 (en) | 2017-04-13 | 2022-03-01 | Hunting Titan, Inc. | Crimped attachment of end fitting to charge tube |
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