A check valve has an inlet end, a transition part and an outlet end, with a pair of vertically orientated lips. The transition part is twisted about the axis extending from the inlet to the outlet. As fluid passes through the check valve, the twisted portion of the check valve will impart a swirling motion to the fluid as the fluids leaves the check valve via the outlet end.

An electronic cigarette includes a power supply portion and a replaceable cartridge. The replaceable cartridge has a fluid transfer element with a first wicking part configured to extend into a liquid store in the cartridge and a second wicking part configured to extend outwardly in a direction away from the liquid store. The fluid transfer element is configured to fluidically couple the liquid store to a heater in the power supply portion. The replaceable cartridge is removably coupled to the power supply portion such that the second wicking part can be engaged and disengaged from the heater and, when disengaged, the fluid transfer element is a part of the cartridge.

A check valve, including a valve and a valve support surface, to permit a fluid to move through the check valve in a first direction and resist a fluid flow through the valve in a second direction, the valve having a valve diaphragm and an isolating bridge, with a portion of the valve engaging against valve support surface to resist deformation or stretching of the valve when a backflow of fluid into the check valve occurs. The valve support surface having a first surface portion and a second surface portion, and the valve positioned with the valve diaphragm spaced apart from the first surface portion, and the isolating bridge spaced apart from the second surface portion.

An electronic cigarette includes a power supply portion having a heater and a replaceable cartridge having a liquid store. The power supply portion has a fluid transfer element with an elongated shape including a first wicking part extending outwardly from the power supply portion as a free end, and a second wicking part configured to deliver liquid to the heater for vaporization. The power supply portion has a seating configured to fixedly attach to the second wicking part. The first wicking part is configured to extend into the liquid store when the power supply portion is connected to the cartridge. The replaceable cartridge is removably coupled to the power supply portion such that the first wicking part can be engaged and disengaged from the liquid store and, when disengaged, the fluid transfer element is a part of the power supply portion 3.

An electronic cigarette, including an air passage and a one-way valve disposed in the air passage. The one-way valve includes a soft material. When in use, a forward airflow is passable through the one-way valve, and a reverse airflow is unpassable through the one-way valve, thus preventing the reverse airflow or saliva from entering the atomizer of the electronic cigarette.

Examples of the disclosure include a universal suction cup for a cardiopulmonary resuscitation device having a first circular member extending from a piston-facing surface, and a second circular member concentric to the first circular member extending from the piston-facing surface, the second circular member having a diameter that is less than the first circular member. Example of the disclosure also include suction cups with rigid members to reduce the amount of force necessary to attach the suction cup to a patient. Examples of the disclosure also include a mechanical compression device which can detect the type of suction cup attached to a compression member and activate particular features or settings based on the attached suction cup.

A valve member provides for the flow of vapors from a fuel tank of an internal combustion engine to escape the fuel tank. The valve member may include a valve and a boss or spacer. The valve is configured to selectively control the flow of vapor from the fuel tank. The boss or spacer is positioned in a predetermined relationship to the valve, and the boss or spacer prevents a deformation of the valve from disrupting the selectively controlled flow of vapor from the fuel tank.

A gas turbine engine includes a main compressor section having a downstream most location, and a turbine section, with both the main compressor section and the turbine section housing rotatable components. A first tap taps air compressed by the main compressor section at an upstream location upstream of the downstream most location. The first tap passes through a heat exchanger, and to a cooling compressor. Air downstream of the cooling compressor is selectively connected to reach at least one of the rotatable components. The cooling compressor is connected to rotate at a speed proportional to a rotational speed in one of the main compressor section and the turbine section. A valve system includes a check valve for selectively blocking flow downstream of the cooling compressor from reaching the at least one rotatable component. A dump valve selectively dumps air downstream of the cooling compressor. A method is also disclosed.

A filter device for a vacuum cleaner having a turbine device and a motor. The vacuum cleaner includes two chambers and filter elements of the filter device are dedusted by an abrupt change in position of a dividing element in the chambers. Since, when one of the two chambers is being dedusted, the suction operation of the vacuum cleaner can be maintained through the other chamber, the filter dedusting can advantageously take place during continued suction operation of the vacuum cleaner. A method for dedusting a filter device in a vacuum cleaner, wherein, as a result of a valve being actuated, an air volume is driven out of one of the two chambers so that a dividing element is advantageously made to change position, and this can result in a backflushing pulse and mechanical shaking of the filter element, and dedusting of the filter device.

A container (5) comprising a valve (10) with a valve member (12) and a valve seat (14). The container (5) has a retainer for retaining the valve member (12). The valve (10) defines a flowpath between the valve member (12) and the valve seat (14), the flowpath being selectively openable by movement of at least a portion of the valve member (12) away from the valve seat (14) in response to suction. The flowpath does not pass through any aperture within the valve member (12).