Abstract: A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.

Abstract: An aerosol spray device comprising a pressurised or pressurisable container and a spray discharge assembly mounted on the container. The spray discharge assembly comprises a valve stem moveable from a first limit position to a second limit position to effect spray discharge from the device, a spray outlet region having an outlet orifice from which fluid from the container is discharged, and a flow conduit for supplying fluid from the container to the spray outlet region. The flow conduit has at least one first inlet for liquid from the container and at least one second inlet at the same distance along the conduit as the first inlet(s) or downstream of the first inlet(s) for propellant gas from a headspace of the container.

Abstract: An aerosol spray device comprising a pressurised or pressurisable container and a spray discharge assembly mounted on the container. The spray discharge assembly comprises a valve stem moveable from a first limit position to a second limit position to effect spray discharge from the device, a spray outlet region having an outlet orifice from which fluid from the container is discharged, and a flow conduit for supplying fluid from the container to the spray outlet region. The flow conduit has at least one first inlet for liquid from the container and at least one second inlet at the same distance along the conduit as the first inlet(s) or downstream of the first inlet(s) for propellant gas from a headspace of the container.

Abstract: An aerosol spray device comprising a pressurized or pressurizable container and a spray discharge assembly mounted on the container. The spray discharge assembly comprises a valve stem moveable from a first limit position to a second limit position to effect spray discharge from the device, a spray outlet region having an outlet orifice from which fluid from the container is discharged, and a flow conduit for supplying fluid from the container to the spray outlet region. The flow conduit has at least one first inlet for liquid from the container and at least one second inlet at the same distance along the conduit as the first inlet(s) or downstream of the first inlet(s) for propellant gas from a headspace of the container.

Abstract: An aerosol spray device comprising a pressurised or pressurisable container and a spray discharge assembly mounted on the container. The spray discharge assembly comprises a valve stem moveable from a first limit position to a second limit position to effect spray discharge from the device, a spray outlet region having an outlet orifice from which fluid from the container is discharged, and a flow conduit for supplying fluid from the container to the spray outlet region. The flow conduit has at least one first inlet for liquid from the container and at least one second inlet at the same distance along the conduit as the first inlet(s) or downstream of the first inlet(s) for propellant gas from a headspace of the container.

Abstract: A spray discharge assembly is provided for use with an aerosol spray device comprising a pressurizable container holding a liquid to be discharged from the device by a propellant. The spray discharge assembly incorporates an approach channel having at least one inlet and an outlet, a flow conduit upstream of the approach channel in the direction of liquid discharge for supplying fluid to be discharged to the approach channel, at least one jetting orifice through which fluid from the conduit passes and issues as a jet into the approach channel through the inlet thereof, and a discharge orifice into which fluid from the approach channel passes via the outlet thereof to issue as a spray from the device. The outlet of the approach channel is surrounded by a sharp edge, and the jetting orifice is configured for directing the jet against the sharp edge.

Abstract: An aerosol spray device comprising a pressurized or pressurizable container and a spray discharge assembly mounted on the container. The spray discharge assembly comprises a valve stem moveable from a first limit position to a second limit position to effect spray discharge from the device, a spray outlet region having an outlet orifice from which fluid from the container is discharged, and a flow conduit for supplying fluid from the container to the spray outlet region. The flow conduit has at least one first inlet for liquid from the container and at least one second inlet at the same distance along the conduit as the first inlet(s) or downstream of the first inlet(s) for propellant gas from a headspace of the container.

Abstract: A method is provided for interfacing a plurality of processing components with a shared resource. A token signal path is provided to allow propagation of a token through the processing components, wherein possession of the token enables a processing component to conduct a transaction with the shared resource. Token processing logic is provided for propagating the token from one processing component to another along the token signal path, the propagating being done at a propagation rate related to a transaction rate of the shared resource. The token processing logic also generates a trigger signal at least in part based on the token and propagates to trigger signal to the shared resource to convey initiation of a transaction with the shared resource. A circuit comprising a plurality of processing components and a shared resource is provided wherein the processing components and the shared resource interface with one another using the method proposed.

Abstract: A discharge assembly for discharging a metered volume of a liquid held in a pressured container includes an elongate tubular housing, a valve stem having a body locating within the housing, a chamber provided within the body of the valve stem and having a liquid inlet, and a liquid discharge element moveable along the chamber from a liquid primed position to a liquid discharged position to effect discharge of the metered volume of liquid, wherein a second fluid transfer passageway is formed along the outside of the valve stem between the inlet of the housing and the first fluid transfer passageway, and a seal is provided for relative sliding movement onto a seat as the valve stem moves to close the second fluid transfer passageway to fluid flow.

Abstract: A discharge assembly apparatus for discharging a metered volume of a liquid when used in combination with a liquid-containing, pressurized or pressurizable container includes an actuator assembly incorporating a valve stem having a discharge conduit arrangement with an inlet and an outlet, a metering chamber formed within the valve stem and incorporating a liquid discharge element, an inlet/outlet arrangement, and a housing wherein the valve stem and the inner surface of the housing define a fluid transfer passageway therebetween, the discharge conduit arrangement of the valve stem providing communication between the outlet of the metering chamber and the outlet of the valve stem via the fluid transfer passageway.

Abstract: The present invention provides a valving arrangement device for an aerosol spray device comprising a pressurized or pressurizable container which, when in its fully open configuration, has a loss coefficient of 10 or less. There is also provided a valving arrangement device for an aerosol spray device wherein, when in its fully open configuration, said valving arrangement is such that fluid passes from the upstream fluid flow path section into the downstream fluid flow path section with any change of the cross-sectional area of the fluid being less than 50% and with any change in direction of the flow being less than 40°.

Abstract: A method is provided for interfacing a plurality of processing components with a shared resource component. A token signal path is provided to allow propagation of a token through the processing components, wherein possession of the token by a given processing component enables the latter to conduct a transaction with the shared resource component. Token processing logic is also provided for propagating the token from one processing component to another along the token signal path, the propagating being done at a propagation rate that is related to a transaction rate associated with the shared resource component. A circuit comprising a plurality of processing components and a shared resource component is provided wherein the plurality processing components and the shared resource components are interfaced with one another using the method proposed.

Abstract: A method is provided for interfacing a plurality of processing components with a shared resource. A token signal path is provided to allow propagation of a token through the processing components, wherein possession of the token enables a processing component to conduct a transaction with the shared resource. Token processing logic is provided for propagating the token from one processing component to another along the token signal path, the propagating being done at a propagation rate related to a transaction rate of the shared resource. The token processing logic also generates a trigger signal at least in part based on the token and propagates to trigger signal to the shared resource to convey initiation of a transaction with the shared resource. A circuit comprising a plurality of processing components and a shared resource is provided wherein the processing components and the shared resource interface with one another using the method proposed.

Abstract: A method is provided for interfacing a plurality of processing components with a shared resource component. A token signal path is provided to allow propagation of a token through the processing components, wherein possession of the token by a given processing component enables the latter to conduct a transaction with the shared resource component. Token processing logic is also provided for propagating the token from one processing component to another along the token signal path, the propagating being done at a propagation rate that is related to a transaction rate associated with the shared resource component. The token processing logic also generates a trigger signal at least in part based on the token and propagates to trigger signal to the shared resource component to convey initiation of a transaction with the shared resource component.

Abstract: A method is provided for propagating clock signals in a circuit segment having a first clocked device, a second clocked device and a data path between the first clocked device and the second clocked device. The data path propagates data released by the first clocked device to the second clocked device and is associated with a data propagation delay. The method comprises providing a clock propagation path for propagating clock signals to the first clocked device and the second clocked device, wherein the clock signal propagated to the second clocked device is delayed from the clock signal propagated to the first clocked device by a clock delay interval, the clock delay interval being related to the data propagation delay of the data path. A circuit segment making use of the above method is also provided.

Abstract: An aerosol spray device comprising a pressurised or pressurisable container and a spray discharge assembly mounted on the container. The spray discharge assembly comprises a valve stem moveable from a first limit position to a second limit position to effect spray discharge from the device, a spray outlet region having an outlet orifice from which fluid from the container is discharged, and a flow conduit for supplying fluid from the container to the spray outlet region. The flow conduit has at least one first inlet for liquid from the container and at least one second inlet at the same distance along the conduit as the first inlet(s) or downstream of the first inlet(s) for propellant gas from a headspace of the container.

Abstract: A spray discharge assembly is provided for use with an aerosol spray device comprising a pressurizable container holding a liquid to be discharged from the device by a propellant. The spray discharge assembly incorporates an approach channel having at least one inlet and an outlet, a flow conduit upstream of the approach channel in the direction of liquid discharge for supplying fluid to be discharged to the approach channel, at least one jetting orifice through which fluid from the conduit passes and issues as a jet into the approach channel through the inlet thereof, and a discharge orifice into which fluid from the approach channel passes via the outlet thereof to issue as a spray from the device. The outlet of the approach channel is surrounded by a sharp edge, and the jetting orifice is configured for directing the jet against the sharp edge.

Abstract: A method and associated processor suitable for executing machine instructions for evaluating a logical expression are provided. The approach suggested makes use of a memory and an extended set of instructions. The memory, which can be embodied in a general purpose register for example, is for storing information related to an intermediate results obtained in evaluating the logical expression as well as a nesting level of sub-expressions in the logical expression being evaluated. The extended set of instruction allows for initializing and updating the information in that memory. A processor for executing the extended set of instruction is also provided along with a process for generating machine code making use of this extended set of instructions for evaluating a logical expression.

Abstract: The present invention provides a valving arrangement device for an aerosol spray device comprising a pressurised or pressurisable container which, when in its fully open configuration, has a loss coefficient of 10 or less. There is also provided a valving arrangement device for an aerosol spray device wherein, when in its fully open configuration, said valving arrangement is such that fluid passes from the upstream fluid flow path section into the downstream fluid flow path section with any change of the cross-sectional area of the fluid being less than 50% and with any change in direction of the flow being less than 40°.

Abstract: A discharge assembly apparatus for discharging a metered volume of a liquid when used in combination with a liquid-containing, pressurised or pressurisable container includes an actuator assembly incorporating a valve stem having a discharge conduit arrangement with an inlet and an outlet, a metering chamber formed within the valve stem and incorporating a liquid discharge element, an inlet/outlet arrangement, and a housing wherein the valve stem and the inner surface of the housing define a fluid transfer passageway therebetween, the discharge conduit arrangement of the valve stem providing communication between the outlet of the metering chamber and the outlet of the valve stem via the fluid transfer passageway.