Abstract: A volatile material dispenser comprises a base that houses a printed circuit board. The base includes at least one button and a plurality of visual indicators along a front portion. The volatile material dispenser further comprises a stand assembly that is coupled with the base. The stand assembly includes a platform defining a front portion and a rear portion, a stand that is disposed above and on the rear portion of the platform, a manifold that is disposed at an upper end of the stand and defines an outer side surface from which extends a plurality of radially spaced ribs, and a piezoelectric assembly disposed within the manifold. The volatile material dispenser further comprises a cover that is configured to be attachable to and detachable from the base. The cover defines a chimney that defines a longitudinal axis. The manifold includes a refill chassis.

Abstract: A volatile material dispenser includes a base and a stand assembly that is coupled with the base. The base includes a fan and a battery therein. The stand assembly includes a platform, a stand that extends from the platform, and a manifold that extends from the stand. The volatile material dispenser also includes a shroud and an air deflector. The shroud is positioned on the base and defines a chimney. The air deflector is positioned between the shroud and the manifold. The air deflector is configured to direct air out of the chimney.

Abstract: A volatile material dispenser includes a base that houses a printed circuit board. The volatile material dispenser also includes a stand assembly and a shroud. The stand assembly is coupled with the base. The stand assembly includes a platform, a stand that extends from the platform, and a manifold that extends from the stand. The manifold contains a circular piezoelectric element. The shroud is positioned on the base. The shroud defines a chimney that is centered along a longitudinal axis. The manifold includes an annular wall that extends from the manifold. A spring is disposed within the manifold and is coaxial with the annular wall. A top end of the spring is wrapped around the annular wall and a bottom end of the spring applies a force against the piezoelectric element.

Abstract: A volatile material dispenser includes a base that houses a printed circuit board, a stand assembly that is coupled with the base, the stand assembly including a platform, a stand that extends from the platform, and a manifold that extends from the stand, the manifold containing a circular piezoelectric element. The dispenser further includes a shroud that is coupled with the stand assembly and defines a chimney, and a refill comprising a wick, the refill being removably coupled with the manifold. The manifold includes a cylindrical wall that extends upward from the manifold, a spring is disposed within the manifold and is coaxial with the cylindrical wall, and a top end of the spring is wrapped around the cylindrical wall and a bottom end of the spring applies a force against the piezoelectric element.

Abstract: Fluid separation chambers are provided for rotation about an axis in a fluid processing system. The fluid separation chamber may be provided with first and second stages, with the first and second stages being positioned at different axial locations. In another embodiment, at least one of the stages may be provided with a non-uniform outer diameter about the rotational axis, which may define a generally spiral-shaped profile or a different profile for fractionating a fluid or fluid component. One or more of the stages may also have a varying outer diameter along the axis. The profile of the chamber may be provided by the chamber itself (in the case of rigid chambers) or by an associated fixture or centrifuge apparatus (in the case of flexible chambers).

Abstract: Fluid separation chambers are provided for rotation about an axis in a fluid processing system. The fluid separation chamber may be provided with first and second stages, with the first and second stages being positioned at different axial locations. In another embodiment, at least one of the stages may be provided with a non-uniform outer diameter about the rotational axis, which may define a generally spiral-shaped profile or a different profile for fractionating a fluid or fluid component. One or more of the stages may also have a varying outer diameter along the axis. The profile of the chamber may be provided by the chamber itself (in the case of rigid chambers) or by an associated fixture or centrifuge apparatus (in the case of flexible chambers).

Abstract: A volatile material dispenser includes a base that houses a printed circuit board, a stand assembly that is coupled with the base, the stand assembly including a platform, a stand that extends from the platform, and a manifold that extends from the stand, the manifold containing a circular piezoelectric element. The dispenser further includes a shroud that is coupled with the stand assembly and defines a chimney, and a refill comprising a wick, the refill being removably coupled with the manifold. The manifold includes a cylindrical wall that extends upward from the manifold, a spring is disposed within the manifold and is coaxial with the cylindrical wall, and a top end of the spring is wrapped around the cylindrical wall and a bottom end of the spring applies a force against the piezoelectric element.

Abstract: A dispenser includes a housing having a cavity. A container is provided within the cavity and includes a volatile material therein. The dispenser further includes a resistive heating wire. The container is in thermal communication with at least a portion of the resistive heating wire.

Abstract: Fluid separation chambers are provided for rotation about an axis in a fluid processing system. The fluid separation chamber may be provided with first and second stages, with the first and second stages being positioned at different axial locations. In another embodiment, at least one of the stages may be provided with a non-uniform outer diameter about the rotational axis, which may define a generally spiral-shaped profile or a different profile for fractionating a fluid or fluid component. One or more of the stages may also have a varying outer diameter along the axis. The profile of the chamber may be provided by the chamber itself (in the case of rigid chambers) or by an associated fixture or centrifuge apparatus (in the case of flexible chambers).

Abstract: Fluid separation chambers are provided for rotation about an axis in a fluid processing system. The fluid separation chamber may be provided with first and second stages, with the first and second stages being positioned at different axial locations. In another embodiment, at least one of the stages may be provided with a non-uniform outer diameter about the rotational axis, which may define a generally spiral-shaped profile or a different profile for fractionating a fluid or fluid component. One or more of the stages may also have a varying outer diameter along the axis. The profile of the chamber may be provided by the chamber itself (in the case of rigid chambers) or by an associated fixture or centrifuge apparatus (in the case of flexible chambers).

Abstract: A refill for dispensing a volatile material includes a bottle having a body defined by at least one sidewall and a neck extending outwardly from the at least one sidewall. The neck includes a rim at an upper end thereof, the neck being defined by an inner surface, a top surface, and an outer surface. The refill further includes a plug and a wick having a first end positioned within the bottle and a second end extending out of the bottle, the wick further defining a longitudinal axis. The plug is coupled to the neck of the bottle, the plug retaining the wick within the bottle. At least a portion of the inner surface of the rim is tapered at an angle of between about 2 and about 9 degrees with respect to the longitudinal axis.

Abstract: A refill for dispensing a volatile material includes a bottle having a body defined by at least one sidewall and a neck extending from the body. The neck includes a rim at an upper end thereof and has an inner surface, a top surface, and an outer surface. A wick has a first end positioned within the bottle and a second end extending out of the bottle. A plug assembly is secured to the neck of the bottle and retains the wick within the bottle. A cap is coupled with the neck of the bottle. An underside of the cap includes a stop and a flange that form a seal with the plug assembly when the refill is in an assembled configuration.

Abstract: A refill for dispensing a volatile material includes a bottle having a body defined by at least one sidewall and a neck extending outwardly from the at least one sidewall. The neck includes a rim at an upper end thereof, the neck being defined by an inner surface, a top surface, and an outer surface. The refill further includes a plug and a wick having a first end positioned within the bottle and a second end extending out of the bottle, the wick further defining a longitudinal axis. The plug is coupled to the neck of the bottle, the plug retaining the wick within the bottle. At least a portion of the inner surface of the rim is tapered at an angle of between about 2 and about 9 degrees with respect to the longitudinal axis.

Abstract: Fluid separation chambers are provided for rotation about an axis in a fluid processing system. The fluid separation chamber may be provided with first and second stages, with the first and second stages being positioned at different axial locations. In another embodiment, at least one of the stages may be provided with a non-uniform outer diameter about the rotational axis, which may define a generally spiral-shaped profile or a different profile for fractionating a fluid or fluid component. One or more of the stages may also have a varying outer diameter along the axis. The profile of the chamber may be provided by the chamber itself (in the case of rigid chambers) or by an associated fixture or centrifuge apparatus (in the case of flexible chambers).

Abstract: A sheeting is provided for use with a fluid processing cassette having a valve station with a plurality of fluid flow ports. The sheeting has a generally flexible layer and a biasing member associated with the layer. The sheeting is attached to the cassette such that the biasing member is received within the valve station. The cassette may be used with a fluid processing system having a valve actuator with a piston that is aligned with the cassette during use. In an extended position, the piston presses the sheeting against the port to prevent fluid flow through the valve station. When the piston moves from the extended position to a retracted position, it allows the sheeting to uncover the port, thereby allowing fluid flow through the valve station. The biasing member assists in displacing the sheeting from the port when the piston moves to the retracted position.

Abstract: Centrifuges are provided for rotating fluid separation chambers about an axis in a fluid processing system. The centrifuge may be provided with high- and low-G walls, with a gap defined between the high- and low-G walls. A first section of the gap may have a substantially uniform radius about the axis, while a second section of the gap may have a non-uniform radius about the axis. The radius of the second section of the gap about the axis at all locations is no larger than the radius of the first section of the gap about the axis. The high-G wall may comprise an inner surface of an outer bowl, while the low-G wall may comprise an outer surface of an inner spool. At least a portion of the second section of the gap may have a varying radius along the axis and/or be configured as a spiral.