The present invention relates to a medical device for intranasal delivery of a medicament. The medicament may be any type of medicament suitable for nasal administration and delivery in the form of a spray. The present invention ensures that a complete dosage of the medicament is delivered, especially to specific areas in the nasal cavity, such as the rear of the nasal cavity where the SPG is located.

A nozzle for an abatement apparatus and a method are disclosed. The nozzle is for abatement apparatus operable to treat an effluent stream from a processing tool, the nozzle comprises: a nozzle body defining a nozzle inlet operable to receive the effluent stream, a nozzle outlet, and a conduit extending between the nozzle inlet and the nozzle outlet and operable to convey the effluent stream in a direction of flow from the nozzle inlet to the nozzle outlet; and an effluent stream rotator configured to impart a rotational component to the effluent stream to rotate the effluent stream around the direction of flow. In this way, the effluent stream is rotated as it passes through the nozzle body. The destruction rate efficiency achieved by an abatement apparatus when receiving such rotating effluent streams has been found to be significantly improved compared to non-rotating effluent streams.

The invention relates to nozzle tips including a nozzle body and a tip portion, configured to minimize the accumulation of a resin on the nozzle tip as it is dispensed through the nozzle tip. The nozzle tip can contain a central flow channel and an internal portion that branches and guides the resin into multiple exiting flow channels that define tangential pathways to the outer surface of the nozzle tip. The nozzle tip can include grooves that define extended, sharply angled flow paths for the resin.

Nozzle tips can have a neck portion separating a nozzle body and a tip end of the nozzle tip; here, a doughnut-shaped space located around the neck portion can be defined by the base of the nozzle, the crown of the nozzle, and the neck portion, for encouraging turbulent flow of the resin to scour the nozzle tip during dispensing.

The invention relates to nozzle tips including a nozzle body and a tip portion, configured to minimize the accumulation of a resin on the nozzle tip as it is dispensed through the nozzle tip. The nozzle tip can contain a central flow channel and an internal portion that branches and guides the resin into multiple exiting flow channels that define tangential pathways to the outer surface of the nozzle tip. The nozzle tip can include grooves that define extended, sharply angled flow paths for the resin.

Nozzle tips can have a neck portion separating a nozzle body and a tip end of the nozzle tip; here, a doughnut-shaped space located around the neck portion can be defined by the base of the nozzle, the crown of the nozzle, and the neck portion, for encouraging turbulent flow of the resin to scour the nozzle tip during dispensing.

A new firefighting nozzle has a series of moveable vanes that extend inwardly from a peripheral wall of a base. The inner side of the vanes extends between and of the diameter of the central channel. The vanes rotate between a linear position, in which the vanes are generally parallel to the direction of the channel, and a vortex position, in which the vanes are significantly angled with respect to the direction of the channel. In the linear position, smooth bore linear flow is produced. In the vortex position, any of a range of fog patterns are produced. An externally mounted controller connects to the vanes and enables a firefighter to change the shape of the nozzle's spray without interrupting the flow. The controller and base have a series of pins that slide in a spiral groove and cause the shaper to move axially with respect to the base when the shaper is rotated about the base. Radial stems that ride in a circumferential slot translate that axial movement into rotation of the vanes.

A continuously variable nozzle system includes a nozzle body (5) with an inlet and an outlet. A conduit is defined between the inlet and the outlet by a series connection of components which includes a flow meter (10). The flow meter (10) has a chamber (83) with internal helical splines (82) that are configured to interact with a spray liquid passing through the chamber (83) and create a cyclone-like effect. A sphere (52) is located inside the chamber (83) for free movement along a circular path (106). A sensor is located outside of the chamber (83) and configured to detect motion of the sphere (52) and generate an output (9) signal in response to detected motion.

The present invention discloses an inner spiral nozzle which is assembled to a corresponding nozzle head at its output position. The nozzle consists of a nozzle body with a pre-determined contour that connects with the nozzle head, and at least one flow channel formed through the end surface of the nozzle body at one side which is connected with the nozzle head and the outside of the nozzle body, and the inner wall of the flow channel is formed with a thread along the extending direction of the flow channel. By the composition of the above-mentioned components, the inner diameter of the flow channel is formed multiple cross-sections with different apertures due to the thread on the wall surface, which can increase the effect of the surface tension of the fluid in the flow channel.

A two part adhesive spray system is provided herein. This system provides numerous enhancements to the prior art including limiting overspray fog, saving on sprayed material because of a more efficient spray pattern, and providing a more efficient bond than that of the prior art. In particular, the present invention provides a spray pattern having both adhesive and activator. The activator is sprayed in a smaller spray area than the adhesive, which is sprayed on a larger area. As such, when sprayed on a substrate, the activator provides a rapid tack to hold a second adhered material to the substrate sufficient to hold it in place while the remainder of the adhesive dries and/or cures.

The disclosure concerns a mixing valve for mixing two coating agent components (e.g. master batch and hardener) to form a multi-component mixture, with two coating agent inlets for supplying the two coating agent components and with two coating agent valves for controlling the coating agent flow through the two coating agent inlets, as well as with a coating agent outlet for discharging the multi-component mixture in a specific outflow direction. The disclosure provides that at least one of the coating agent valves is formed as a rotary slide valve having two plane-parallel valve discs which are rotatable relative to each other about an axis of rotation.

The invention provides apparatus for spray coating of substrates using a rotary bell cup atomizer equipped with an air-driven main turbine and a supply of pressurized primary shaping air conveyed through primary shaping air channels and nozzles for controlling the shape of the atomized spray pattern exiting the bell cup edge, the apparatus further including an auxiliary, independently air-driven turbine equipped with a rotatable vortex generator, and including a separate air supply of secondary shaping air for supplying secondary shaping air through secondary air channels and nozzles to further control the shape of the atomized spray pattern exiting the bell cup, which secondary shaping air, on passing through the vortex generator, produces a curtain of shaping air in a vortex-like pattern, which, in conjunction with and mixing with the primary shaping air from the primary air nozzles, produces improved pattern control, transfer efficiency and quality of coating on the substrate.