US2012201597A1PendingUtilityA1

bar coupler

40
Assignee: COMERFORD ERNEST FREDERICKPriority: Aug 14, 2009Filed: Aug 13, 2010Published: Aug 9, 2012
Est. expiryAug 14, 2029(~3.1 yrs left)· nominal 20-yr term from priority
Inventors:Ernest ComerfordMark Andrew Rankin
E04C 5/165E04C 5/18F16B 21/14Y10T403/598Y10T403/5741F16B 21/12
40
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A coupler or connector for joining bars, for example reinforcing bars, comprising an elongate rod member adapted to be inserted into a tubular sleeve member. The rod and sleeve members each have one or more transverse holes which align when the rod member is inserted into the sleeve member. In operational use, the rod and sleeve members are attached to the free ends of the bars to be connected. One or more transverse pins are then driven into the holes which are aligned in order to lock the rod and sleeve member together thereby connecting the bars. In another example of the invention, the pins can be spring loaded and/or the elongate rod member is adapted to be inserted into a pair of opposed sleeve members. In yet another example of the invention, there can be a plastic sleeve adapted to retain the pins in position thereby locking in place the sleeve and rod members. In another version where the pins are spring loaded, the plastic sleeve is slid off during assembly to allow the pins to engage the holes in the sleeve member(s).

Claims

exact text as granted — not AI-modified
1 . A coupler or connector for joining bars including,
 an elongate rod member adapted to be inserted into a tubular sleeve member,   the rod and sleeve members each having one or more transverse holes which align when the rod member is inserted into the sleeve member;   one or more transverse pins adapted to pass through the one or more aligned holes,   wherein in use,   the rod and sleeve members are attached to the free ends of the bars to be connected and when in the inserted position,   the transverse pins can be driven into the aligned holes to lock the rod and sleeve members together thereby connecting the bars.   
     
     
         2 . A coupler or connector for joining bars including,
 an elongate rod member adapted to be inserted into a pair of opposed tubular sleeve members,   the rod and sleeve members each having one or more transverse holes which align when the rod member is inserted into the sleeve members;   one or more transverse pins adapted to pass through the one or more aligned holes,   wherein in use,   the opposed sleeve members are attached to the free ends of the bars to be connected and when the rod member is in the inserted position,   the transverse pins can be driven into the aligned holes to lock the rod and sleeve members together thereby connecting the bars.   
     
     
         3 . A coupler or connector for joining bars including,
 a tubular sleeve member adapted to be able to accept a pair of opposed elongate rod members,   the rod and sleeve members each having one or more transverse holes which align when the rod member is inserted into the sleeve members;   one or more transverse pins adapted to pass through the one or more aligned holes,   wherein in use,   the opposed rod members are attached to the free ends of the bars to be connected and when the rod members are in the inserted position,   the transverse pins can be driven into the aligned holes to lock the rod and sleeve members together thereby connecting the bars.   
     
     
         4 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the pins are replaced by screws, bolts or any other fastener. 
     
     
         5 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the pins are replaced by screws, bolts or any other fastener. 
     
     
         6 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the pins are replaced by screws, bolts or any other fastener. 
     
     
         7 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the pins are spring loaded. 
     
     
         8 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the pins are spring loaded. 
     
     
         9 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the pins are spring loaded. 
     
     
         10 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the attachment of the rod and sleeve members to bars is by means of friction welding. 
     
     
         11 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the attachment of the rod and sleeve members to bars is by means of friction welding. 
     
     
         12 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the attachment of the rod and sleeve members to bars is by means of friction welding. 
     
     
         13 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the rod and sleeve members are attached to the bar by arc welding, gas welding or screw on means. 
     
     
         14 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the rod and sleeve members are attached to the bar by arc welding, gas welding or screw on means. 
     
     
         15 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the rod and sleeve members are attached to the bar by arc welding, gas welding or screw on means. 
     
     
         16 . A coupler or connector for joining bars as claimed in  claim 1 , wherein there is a transparent tube clip-on device to constrain the pins during the construction phase, including the placement and vibration of the enclosing concrete; thereby allowing an inspector to verify that the pins are in place and that the join is correctly assembled. 
     
     
         17 . A coupler or connector for joining bars as claimed in  claim 2 , wherein there is a transparent tube clip-on device to constrain the pins during the construction phase, including the placement and vibration of the enclosing concrete, thereby allowing an inspector to verify that the pins are in place and that the join is correctly assembled. 
     
     
         18 . A coupler or connector for joining bars as claimed in  claim 3 , wherein there is a transparent tube clip-on device to constrain the pins during the construction phase, including the placement and vibration of the enclosing concrete, thereby allowing an inspector to verify that the pins are in place and that the join is correctly assembled. 
     
     
         19 . A coupler or connector for joining bars as claimed in  claim 1 , wherein there is a plastic sleeve associated with the rod member(s) to constrain the pins, wherein plastic sleeve is displaced as the rod member(s) is inserted into the sleeve member(s) thereby releasing the pins for engagement with the holes of the sleeve member(s). 
     
     
         20 . A coupler or connector for joining bars as claimed in  claim 2 , wherein there is a plastic sleeve associated with the rod member(s) to constrain the pins, wherein plastic sleeve is displaced as the rod member(s) is inserted into the sleeve member(s) thereby releasing the pins for engagement with the holes of the sleeve member(s). 
     
     
         21 . A coupler or connector for joining bars as claimed in  claim 3 , wherein there is a plastic sleeve associated with the rod member(s) to constrain the pins, wherein plastic sleeve is displaced as the rod member(s) is inserted into the sleeve member(s) thereby releasing the pins for engagement with the holes of the sleeve member(s). 
     
     
         22 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the number of align-able holes and the number of transverse pins depends on the tensile load specified to be carried by the joined bars. 
     
     
         23 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the number of align-able holes and the number of transverse pins depends on the tensile load specified to be carried by the joined bars. 
     
     
         24 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the number of align-able holes and the number of transverse pins depends on the tensile load specified to be carried by the joined bars. 
     
     
         25 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the dimensions of the rod and sleeve members depend on the specified loading carried by the joined bars. 
     
     
         26 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the dimensions of the rod and sleeve members depend on the specified loading carried by the joined bars. 
     
     
         27 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the dimensions of the rod and sleeve members depend on the specified loading carried by the joined bars. 
     
     
         28 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the diameter of the pins and align-able holes are determined by the shear load required to be borne by the pins. 
     
     
         29 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the diameter of the pins and align-able holes are determined by the shear load required to be borne by the pins. 
     
     
         30 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the diameter of the pins and align-able holes are determined by the shear load required to be borne by the pins. 
     
     
         31 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the pins have an interference fit with the holes. 
     
     
         32 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the pins have an interference fit with the holes. 
     
     
         33 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the pins have an interference fit with the holes. 
     
     
         34 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the pins can have a knurled portion which grips part of the hole as the pin is driven in. 
     
     
         35 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the pins can have a knurled portion which grips part of the hole as the pin is driven in. 
     
     
         36 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the pins can have a knurled portion which grips part of the hole as the pin is driven in. 
     
     
         37 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the pins are tapered to provide an enhanced interference fit. 
     
     
         38 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the pins are tapered to provide an enhanced interference fit. 
     
     
         39 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the pins are tapered to provide an enhanced interference fit. 
     
     
         40 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the rod and sleeve members are of a rod and cylinder configuration. 
     
     
         41 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the rod and sleeve members are of a rod and cylinder configuration. 
     
     
         42 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the rod and sleeve members are of a rod and cylinder configuration. 
     
     
         43 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the rod and sleeve members are of a square or rectangular or elliptical configuration. 
     
     
         44 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the rod and sleeve members are of a square or rectangular or elliptical configuration. 
     
     
         45 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the rod and sleeve members are of a square or rectangular or elliptical configuration. 
     
     
         46 . A coupler or connector for joining bars as claimed in  claim 1 , wherein the rod and sleeve members are externally configured or patterned by having ridges or indentations to grip surrounding concrete. 
     
     
         47 . A coupler or connector for joining bars as claimed in  claim 2 , wherein the rod and sleeve members are externally configured or patterned by having ridges or indentations to grip surrounding concrete. 
     
     
         48 . A coupler or connector for joining bars as claimed in  claim 3 , wherein the rod and sleeve members are externally configured or patterned by having ridges or indentations to grip surrounding concrete.

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