35results about How to "Flow of air" patented technology

The hand-held air blower has a hollow, substantially cylindrical housing with an open front end, a plurality of air intake openings, an impeller situated within the housing proximate the intake openings, a motor for driving the impeller, and battery means for powering the motor. A concentrator attachment is designed for use with the blower. The concentrator has means for removably attaching the concentrator to the open front end of the blower housing and a hollow shell. The shell includes an intake section with a diameter substantially equal to the diameter of the front end of the housing and an outlet section with an outlet opening substantially smaller than the diameter of the front end of the housing. A truncated football-like shaped balancing member is provided. The balancing member has a central air flow channel. Radially directed elements mount the balancing member within the intake shell section with the balancing member spaced from the interior surface of the intake shell section so as to permit air flow therebetween.

The subject invention is an air deflector for a motor vehicle that is adapted to be attached to the posterior portion of a roof structure of a motor vehicle, with some limited overhang over the vertical rear vehicle surface for purposes of directing the flow of air over the roof of a moving motor vehicle downwardly over such rear surface of the motor vehicle, said deflector comprising an air deflector member forming with the motor vehicle an air passage that is curved downwardly from the upper rear surface of the roof in order to deflect air movements from a horizontal flow pattern over the roof surface to a substantial vertical flow directed downwardly and adjacent to the posterior surface of the vehicle, such air deflector device having a concave lower surface adapted to fit conformingly over the rear portion of the roof and the upper portion of the rear surface of the vehicle, with specialized attachment means affixed to such lower surface for attaching the air deflector to a portion of the motor vehicle without use of permanent attachment means to penetrate the body of the vehicle.

A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.

A device for fitting to a vehicular snorkel air intake is provided. The device comprises a shield and at least one arm extending from the shield, wherein the at least one arm is adapted to position the shield in front of an inlet of the snorkel air intake.

A device for fitting to a vehicular snorkel air intake is provided. The device comprises a shield and at least one arm extending from the shield, wherein the at least one arm is adapted to position the shield in front of an inlet of the snorkel air intake.

A device for controlling visibility and access to central venous access devices is comprised of a two-sided body fitted around the torso of a patient. The device has an interior surface and an exterior surface. The interior surface is fitted with a layer of absorbent, wicking material and further includes strips of anti-slip material to fix the device in place. A flexible window is positioned between two lumen retaining flaps and fixed between the interior and exterior surfaces. A pair of indentions is positioned above and below the window. A pair of locking closures is attached to the body over the indentions. The body includes a flexible closure including a resilient gauze section to provide flexibility and size adjustability. The window allows visual access to the intravenous site and prevents patient tampering. The intravenous lines are protected from breakage and tampering by the locking closures, indentions, and lumen retaining flaps.

The present application provides a slide valve, wherein the slide valve is configured to regulate a load of a twin-screw compressor. The slide valve comprises a slide valve body, wherein the slide valve body has a connecting end and a free end, the connecting end is configured to connect to a slide valve connecting rod of the twin-screw compressor, and the slide valve is driven to slide by the slide valve connecting rod. A cavity is formed in the free end of the slide valve body, and the slide valve has a passage configured to fluidly couple the cavity with an external fluid to reduce air flow pulsations on a suction side of the twin-screw compressor and thereby reduce overall air flow pulsations in the twin-screw compressor.

An airship in the shape of an annular aerofoil, designed so that the sides of the airship have a streamlined shape. Within the central passage is an efficient propulsion unit, the thrust from which is vectored to provide manoeuvrability.

A nonwoven web made of plastic fibers and having a web thickness less than 2 mm (preferably less than 1.5 mm) and a grammage less than 30 g / m2 (preferably less than 25 g / m2) and conveyed this web in a travel direction so that it physically contacts a guide or treatment roller. A stabilization plate extending in and transversely to the travel direction of the nonwoven web is provided upstream or downstream of the roller in the travel direction, and the nonwoven web is guided in the travel direction past the stabilization plate such that a spacing between a face of the stabilization plate turned toward the nonwoven web and the nonwoven web face is 0 to 20 mm (preferably 0.1 to 10 mm, and very preferably 0.2 to 5 mm).

There is provided a burner for a gas turbine engine, the burner comprising a radially inner pilot fuel flow passage surrounded by a radially outer main fuel flow passage. The main fuel flow passage is interposed between concentrically arranged radially inner and radially outer air flow passages. The inner and outer air flow passages are in fluid communication with one another via at least one diverting passage at an upstream end of the burner. The burner further comprises at least one control duct connectable to a reduced pressure / vacuum source for selectively reducing the air pressure in the vicinity of the diverting passage such that air flow is selectively diverted from the inner air flow passage to the outer flow passage via the diverting passage.

A dredging system agitates the bottom sediment of a waterway to remove particles and oxygenate the water. The system diffuses air through a grid mounted on a waterway floor, raising particle clouds. The particle clouds are transported downstream by water currents while releasing dissolved oxygen throughout the water column. The method of particle removal and oxygenation is used in shallow depths, less than thirty-three feet (2 bars) with minimum favorable water currents of one-half to one knot. The grid is used for diffusion of air to alleviate hypoxic environments in depths less than sixty-six feet (5 bars).