Abstract: A steerable delivery system is provided for delivering a replacement heart valve to a native heart valve location. The steerable delivery system includes an outer sheath assembly having a capsule along a distal end portion for retaining the replacement heart valve in a compressed configuration. The capsule is constructed to provide both compression resistance and flexibility. The capsule may be formed with an outer polymer layer, a metal middle layer located on a radially inner surface of the outer polymer layer, and an inner liner located on a radially inner surface of the metal middle layer. A fluoroelastomer layer is provided for bonding the inner liner to the metal middle layer. The metal middle layer is preferably a metal hypotube.

Abstract: A cinch direct mount 2× ring system is disclosed. One embodiment discloses a chainring assembly having a drive side crank arm with a chainring assembly interface including a plurality of splines, a circumference, and an axial length. The chainring assembly includes a first chainring having a first outer diameter and a first center assembly shape. The chainring assembly includes a second chainring having a second outer diameter and a second center assembly shape, the second outer diameter being different than the first outer diameter. The chainring assembly also includes a fastener to couple the first chainring and the second chainring with the chainring assembly interface, such that at least one of the first center assembly shape or the second center assembly shape engages with the plurality of splines.

Abstract: A seat post head assembly is disclosed. The assembly includes a housing coupled to a seat post, the housing including a cylindrical bore, and a first and second threaded chamber. A rotatable core is inserted into and rotates within the cylindrical bore, the rotatable core including a seat rail clamp assembly to fixedly clamp a set of seat rails and provide independent adjustment of a fore-aft location of the seat without affecting a pitch of the seat. The assembly additionally includes a first threaded member that threads into the first threaded chamber, contacts the rotatable core, and adjusts the pitch of the seat without affecting the fore-aft location of the seat. The assembly also includes a second threaded member that threads into the second threaded chamber, contacts a different portion of the rotatable core, and provides a physical hard stop against a change in the pitch.

Abstract: A cinch direct mount 2× ring system is disclosed. One embodiment discloses a chainring assembly having a drive side crank arm with a chainring assembly interface including a plurality of splines, a circumference, and an axial length. The chainring assembly includes a first chainring having a first outer diameter and a first center assembly shape. The chainring assembly includes a second chainring having a second outer diameter and a second center assembly shape, the second outer diameter being different than the first outer diameter. The chainring assembly also includes a fastener to couple the first chainring and the second chainring with the chainring assembly interface, such that at least one of the first center assembly shape or the second center assembly shape engages with the plurality of splines.

Abstract: A seat post head assembly is disclosed. The assembly includes a housing coupled to a seat post, the housing including a cylindrical bore, and a first and second threaded chamber. A rotatable core is inserted into and rotates within the cylindrical bore, the rotatable core including a seat rail clamp assembly to fixedly clamp a set of seat rails and provide independent adjustment of a fore-aft location of the seat without affecting a pitch of the seat. The assembly additionally includes a first threaded member that threads into the first threaded chamber, contacts the rotatable core, and adjusts the pitch of the seat without affecting the fore-aft location of the seat. The assembly also includes a second threaded member that threads into the second threaded chamber, contacts a different portion of the rotatable core, and provides a physical hard stop against a change in the pitch.

Abstract: A seat post head assembly is disclosed. The assembly includes a housing coupled to a seat post, the housing including a cylindrical bore, and a first and second threaded chamber. A rotatable core is inserted into and rotates within the cylindrical bore, the rotatable core including a seat rail clamp assembly to fixedly clamp a set of seat rails and provide independent adjustment of a fore-aft location of the seat without affecting a pitch of the seat. The assembly additionally includes a first threaded member that threads into the first threaded chamber, contacts the rotatable core, and adjusts the pitch of the seat without affecting the fore-aft location of the seat. The assembly also includes a second threaded member that threads into the second threaded chamber, contacts a different portion of the rotatable core, and provides a physical hard stop against a change in the pitch.

Abstract: A seat post head assembly is disclosed. The assembly includes a housing coupled to a seat post, the housing including a cylindrical bore, and a first and second threaded chamber. A rotatable core is inserted into and rotates within the cylindrical bore, the rotatable core including a seat rail clamp assembly to fixedly clamp a set of seat rails and provide independent adjustment of a fore-aft location of the seat without affecting a pitch of the seat. The assembly additionally includes a first threaded member that threads into the first threaded chamber, contacts the rotatable core, and adjusts the pitch of the seat without affecting the fore-aft location of the seat. The assembly also includes a second threaded member that threads into the second threaded chamber, contacts a different portion of the rotatable core, and provides a physical hard stop against a change in the pitch.

Abstract: A seat post head assembly is disclosed. The assembly includes a housing coupled to a seat post, the housing including a cylindrical bore, and a first and second threaded chamber. A rotatable core is inserted into and rotates within the cylindrical bore, the rotatable core including a seat rail clamp assembly to fixedly clamp a set of seat rails and provide independent adjustment of a fore-aft location of the seat without affecting a pitch of the seat. The assembly additionally includes a first threaded member that threads into the first threaded chamber, contacts the rotatable core, and adjusts the pitch of the seat without affecting the fore-aft location of the seat. The assembly also includes a second threaded member that threads into the second threaded chamber, contacts a different portion of the rotatable core, and provides a physical hard stop against a change in the pitch.

Abstract: A seat post head assembly is disclosed. The assembly includes a housing coupled to a seat post, the housing including a cylindrical bore, and a first and second threaded chamber. A rotatable core is inserted into and rotates within the cylindrical bore, the rotatable core including a seat rail clamp assembly to fixedly clamp a set of seat rails and provide independent adjustment of a fore-aft location of the seat without affecting a pitch of the seat. The assembly additionally includes a first threaded member that threads into the first threaded chamber, contacts the rotatable core, and adjusts the pitch of the seat without affecting the fore-aft location of the seat. The assembly also includes a second threaded member that threads into the second threaded chamber, contacts a different portion of the rotatable core, and provides a physical hard stop against a change in the pitch.

Abstract: A cinch direct mount 2× ring system is disclosed. One embodiment discloses a chainring assembly having a drive side crank arm with a chainring assembly interface including a plurality of splines, a circumference, and an axial length. The chainring assembly includes a first chainring having a first outer diameter and a first center assembly shape. The chainring assembly includes a second chainring having a second outer diameter and a second center assembly shape, the second outer diameter being different than the first outer diameter. The chainring assembly also includes a fastener to couple the first chainring and the second chainring with the chainring assembly interface, such that at least one of the first center assembly shape or the second center assembly shape engages with the plurality of splines.

Abstract: A cinch direct mount 2× ring system is disclosed. One embodiment discloses a chainring assembly having a drive side crank arm with a chainring assembly interface including a plurality of splines, a circumference, and an axial length. The chainring assembly includes a first chainring having a first outer diameter and a first center assembly shape. The chainring assembly includes a second chainring having a second outer diameter and a second center assembly shape, the second outer diameter being different than the first outer diameter. The chainring assembly also includes a fastener to couple the first chainring and the second chainring with the chainring assembly interface, such that at least one of the first center assembly shape or the second center assembly shape engages with the plurality of splines.

Abstract: A cinch direct mount 2X ring system is disclosed. One embodiment discloses a chainring assembly having a drive side crank arm with a chainring assembly interface including a plurality of splines, a circumference, and an axial length. The chainring assembly includes a first chainring having a first outer diameter and a first center assembly shape. The chainring assembly includes a second chainring having a second outer diameter and a second center assembly shape, the second outer diameter being different than the first outer diameter. The chainring assembly also includes a fastener to couple the first chainring and the second chainring with the chainring assembly interface, such that at least one of the first center assembly shape or the second center assembly shape engages with the plurality of splines.

Abstract: A seat post head assembly is disclosed. The assembly includes a housing coupled to a seat post, the housing including a cylindrical bore, and a first and second threaded chamber. A rotatable core is inserted into and rotates within the cylindrical bore, the rotatable core including a seat rail clamp assembly to fixedly clamp a set of seat rails and provide independent adjustment of a fore-aft location of the seat without affecting a pitch of the seat. The assembly additionally includes a first threaded member that threads into the first threaded chamber, contacts the rotatable core, and adjusts the pitch of the seat without affecting the fore-aft location of the seat. The assembly also includes a second threaded member that threads into the second threaded chamber, contacts a different portion of the rotatable core, and provides a physical hard stop against a change in the pitch.

Abstract: A seat post head assembly is disclosed. The assembly includes a housing coupled to a seat post, the housing including a cylindrical bore, and a first and second threaded chamber. A rotatable core is inserted into and rotates within the cylindrical bore, the rotatable core including a seat rail clamp assembly to fixedly clamp a set of seat rails and provide independent adjustment of a fore-aft location of the seat without affecting a pitch of the seat. The assembly additionally includes a first threaded member that threads into the first threaded chamber, contacts the rotatable core, and adjusts the pitch of the seat without affecting the fore-aft location of the seat. The assembly also includes a second threaded member that threads into the second threaded chamber, contacts a different portion of the rotatable core, and provides a physical hard stop against a change in the pitch.

Abstract: A seat post head assembly is disclosed. The assembly includes a housing coupled to a seat post, the housing including a cylindrical bore, and a first and second threaded chamber. A rotatable core is inserted into and rotates within the cylindrical bore, the rotatable core including a seat rail clamp assembly to fixedly clamp a set of seat rails and provide independent adjustment of a fore-aft location of the seat without affecting a pitch of the seat. The assembly additionally includes a first threaded member that threads into the first threaded chamber, contacts the rotatable core, and adjusts the pitch of the seat without affecting the fore-aft location of the seat. The assembly also includes a second threaded member that threads into the second threaded chamber, contacts a different portion of the rotatable core, and provides a physical hard stop against a change in the pitch.

Abstract: A seat post head assembly is disclosed. The assembly includes a housing coupled to a seat post, the housing including a cylindrical bore, and a first and second threaded chamber. A rotatable core is inserted into and rotates within the cylindrical bore, the rotatable core including a seat rail clamp assembly to fixedly clamp a set of seat rails and provide independent adjustment of a fore-aft location of the seat without affecting a pitch of the seat. The assembly additionally includes a first threaded member that threads into the first threaded chamber, contacts the rotatable core, and adjusts the pitch of the seat without affecting the fore-aft location of the seat. The assembly also includes a second threaded member that threads into the second threaded chamber, contacts a different portion of the rotatable core, and provides a physical hard stop against a change in the pitch.

Abstract: A cinch direct mount 2X ring system is disclosed. One embodiment discloses a chainring assembly having a drive side crank arm with a chainring assembly interface including a plurality of splines, a circumference, and an axial length. The chainring assembly includes a first chainring having a first outer diameter and a first center assembly shape. The chainring assembly includes a second chainring having a second outer diameter and a second center assembly shape, the second outer diameter being different than the first outer diameter. The chainring assembly also includes a fastener to couple the first chainring and the second chainring with the chainring assembly interface, such that at least one of the first center assembly shape or the second center assembly shape engages with the plurality of splines.

Abstract: The reaction of compounds of the formula:X.sub.2 O.sub.3 P CHY CZ.sub.2where Y and each Z are each H, PO.sub.3 X.sub.2, SO.sub.3 X or CO.sub.2 X (e.g. vinyl phosphonic acid or vinylidene diphosphonic acid) with hypophosphorous acid in the presence of free radicals provides novel compounds X.sub.2 O.sub.3 PCHYCZ.sub.2 PO.sub.2 XH which react with monomers such as vinyl sulphonate, vinyl phosphonate, vinylidene diphosphonate and acrylic acid to form telomers useful for scale inhibition, especially barium scale in oil wells. The polymers show better absorption to rock than PVSA and better thermal stability than random copolymers containing equivalent phosphorus.

Abstract: Phosphonic acid polymers are prepared from di- or polyphosphonic acids having one or more unsaturated C.dbd.C bonds (e.g. vinylidene-1,1-diphosphonic acid), either as homopolymers or as higher polymers with at least one further compound having unsaturated C.dbd.C bonds (e.g. acrylic acid). The polymers can be used as, or in connection with, flame-retardants, corrosion inhibitors, coatings, cements and ion exchange resins.