Abstract: A system for post tensioning a concrete member is disclosed. The system may include an anchor body, and a strand, the strand inserted through the anchor body. The strand may have a strand end and an outer diameter. The system may also include a pocket cap, the pocket cap positioned around the strand. The pocket cap may have a cylindrical interior wall, the cylindrical interior wall having a pocket cap diameter corresponding to the outer diameter of the strand.

Abstract: A pocket former may include a pocket former body, the pocket former body having an outer surface. The pocket former may further include a collapsible element, the collapsible element formed on the outer surface of the pocket former body. The collapsible element may extend radially outwardly from the pocket former body.

Abstract: An encapsulated anchor includes an anchor core and an encapsulation. The encapsulation is molded onto the anchor core. The anchor core includes one or more detents which correspond with one or more keys of an encapsulating mold. The detents engage one or more of the keys such that the anchor core is aligned properly in the encapsulating mold.

Abstract: A tissue sample receptacle includes a fulcrum body. The fulcrum body is positioned to allow a tissue sample collector to be broken off within the tissue sample receptacle. The fulcrum body provides a fulcrum against which the tissue sample collector may be bent. The fulcrum body may be coupled to the sidewall of the tissue sample receptacle. The fulcrum body may be removable from, may be permanently coupled to, or may be formed integrally with the sidewall.

Abstract: An anchor includes an anchor body and an insert at least partially within the anchor body. The anchor also includes a coupler body, the coupler body mechanically coupled to the insert, and a coupler nut, the coupler nut coupled to the coupler body.

Abstract: A duct coupler assembly includes a female duct coupler, where the female duct coupler is coupled to a first duct segment. The female duct coupler includes a female duct coupler body having an inner surface having an inner diameter and a bayonet slot formed therein. The duct coupler assembly further includes a male duct coupler. The male duct coupler is coupled to a second duct segment. The male duct coupler includes a male duct coupler body having an outer surface having an outer diameter, where the outer diameter is smaller than the inner diameter of the inner surface of the female duct coupler body. The male duct coupler has a bayonet post extending from an outer surface of the male duct coupler body, and the male duct coupler body is positioned within the female duct coupler body such that the bayonet post is positioned within the bayonet slot wherein the male duct coupler is coupled with the female duct coupler.

Abstract: An embodiment is directed to a duct coupler for joining two segments of conduit. The duct coupler includes a coupler body. The coupler body is generally tubular and has an inner diameter generally corresponding to the outer diameter of a section of conduit measured at an annular locking rib positioned on the section of conduit. The duct coupler further includes one or more protrusions formed on the interior surface of the coupler body. Each protrusion is generally wedge shaped. The one or more protrusions are positioned to engage with at least one annular locking rib to retain the section of conduit within the coupler body. The duct coupler further includes a body gasket. The body gasket is generally tubular and positioned on the interior surface of the coupler body. The body gasket is positioned to form a seal between the inner wall of the coupler body and the outer wall of the section of conduit.

Abstract: A pocket former includes a pocket former body and a keyway former. The pocket former is adapted to form a void in a concrete member allowing access to the stressing end of a post-tensioning tendon. The keyway former is adapted to form a keyway in the concrete to allow grout to be more securely retained in the void.

Abstract: A pocket former includes a pocket former body and a keyway former. The pocket former is adapted to form a void in a concrete member allowing access to the stressing end of a post-tensioning tendon. The keyway former is adapted to form a keyway in the concrete to allow grout to be more securely retained in the void.

Abstract: A post-tensioning tendon may include a tension member including a strand and sheath, the sheath having an outer surface. The post-tensioning tendon may also include an anchor coupled to an end of the tension member, the anchor including a tubular extension through which the tension member is passed. The tubular extension may have an engaging surface. The post-tensioning tendon may additionally include a sheathing retention assembly. The sheathing retention assembly may include an outer cap, the outer cap having a forcing surface. The outer cap may be coupled to the tubular extension. The sheathing retention assembly also may include one or more holding elements positioned at least partially within the outer cap. The one or more holding elements may each have a tapered outer surface abutting the forcing surface. The one or more holding elements each may include an inner surface that engages the outer surface of the sheath.

Abstract: A system for post tensioning a concrete member is disclosed. The system may include an anchor body, and a strand, the strand inserted through the anchor body. The strand may have a strand end and an outer diameter. The system may also include a pocket cap, the pocket cap positioned around the strand. The pocket cap may have a cylindrical interior wall, the cylindrical interior wall having a pocket cap diameter corresponding to the outer diameter of the strand.

Abstract: An anchor is disclosed. The anchor may include an anchor body, the anchor body having an internal passage, and a lock nut, the lock nut having an internal tapered surface defining a forcing cone. The lock nut may be coupled to the anchor body. The anchor may also include a spindle, the spindle positioned within the internal passage and threadedly coupled to the lock nut. The spindle may have an expansion wedge.

Abstract: A pocket former may include a pocket former body, the pocket former body having an outer surface. The pocket former may further include a collapsible element, the collapsible element formed on the outer surface of the pocket former body. The collapsible element may extend radially outwardly from the pocket former body.

Abstract: A wedge for use in post tensioning concrete is formed by cold heading. The cold heading operation may include providing a wire, feeding the end of the wire into a cold heading apparatus, cold heading the end of the wire to form at least one wedge blank, and finishing the wedge blank to form the wedge.

Abstract: A sheathing retention capsule may include an outer body, the outer body having a tapered inner surface defining a forcing surface. The sheathing retention capsule may also include one or more holding wedges. At least one of the one or more holding wedges may have a tapered outer surface abutting the inner surface of the outer body. At least one of the one or more holding wedges may have an inner wall.

Abstract: A wedge assembly for post tensioning concrete includes one or more wedges and a wedge ring. Each wedge includes an outer surface having a circumferential groove formed thereon. The wedge ring is adapted to fit into the groove of the wedges and retain the wedges to a strand. The wedge ring including a gap adapted to allow the wedge ring to be installed from the side of the wedges. When installed to the strand, the wedges may form a clearance fit maintained by the wedge ring. At least one wedge may include a guide adapted to assist with the separation of the wedges when installed to the strand.

Abstract: An anchor assembly for a post-tensioning tendon may include a compact anchor and wedge. The compact anchor may include a wedge extension having a frustoconical inner surface. The frustoconical inner surface may have a diameter of 0.95 inches or less. The compact wedge may have a length of 1.1 inches or less. The compact anchor and compact wedge may be formed from steel having no added lead. The compact anchor and wedge may be formed by cold heading.

Abstract: A wedge assembly for post tensioning concrete includes one or more wedges and a wedge ring. Each wedge includes an outer surface having a circumferential groove formed thereon. The wedge ring is adapted to fit into the groove of the wedges and retain the wedges to a strand. The wedge ring including a gap adapted to allow the wedge ring to be installed from the side of the wedges. When installed to the strand, the wedges may form a clearance fit maintained by the wedge ring. At least one wedge may include a guide adapted to assist with the separation of the wedges when installed to the strand.

Abstract: A wedge assembly for post tensioning concrete includes one or more wedges and a wedge ring. Each wedge includes an outer surface having a circumferential groove formed thereon. The wedge ring is adapted to fit into the groove of the wedges and retain the wedges to a strand. The wedge ring including a gap adapted to allow the wedge ring to be installed from the side of the wedges. When installed to the strand, the wedges may form a clearance fit maintained by the wedge ring. At least one wedge may include a guide adapted to assist with the separation of the wedges when installed to the strand.

Abstract: An embodiment is directed to a duct coupler for joining two segments of conduit. The duct coupler includes a coupler body. The coupler body is generally tubular and has an inner diameter generally corresponding to the outer diameter of a section of conduit measured at an annular locking rib positioned on the section of conduit. The duct coupler further includes one or more protrusions formed on the interior surface of the coupler body. Each protrusion is generally wedge shaped. The one or more protrusions are positioned to engage with at least one annular locking rib to retain the section of conduit within the coupler body. The duct coupler further includes a body gasket. The body gasket is generally tubular and positioned on the interior surface of the coupler body. The body gasket is positioned to form a seal between the inner wall of the coupler body and the outer wall of the section of conduit.