An electronic cigarette vaporizer that includes a heating element and further includes or co-operates with an electronics module that (i) detects characteristics of the delivery of power, current or voltage to the heating element and (ii) determines if those characteristics are associated with degradation of the heating element. A characteristic that is associated with degradation of the heating element is an increase or other change in the heating element resistance. The heating element resistance can be established by the electronics module sending a test current through the heating element that is sufficient to enable a measurement of resistance to be made.

An electronic cigarette vaporizer includes a heating element for heating an e-liquid and a microcontroller; the microcontroller determines the type and/or characteristics of the e-liquid being used and uses that as an input to automatically control the power delivered to the heating element to heat the e-liquid in a manner suitable for that specific type of e-liquid, or e-liquid with those characteristics. The e-liquid can be supplied from a cartridge and that cartridge then includes a record of the type of e-liquid stored in the cartridge and/or its characteristics and the microcontroller reads that record or is provided data from that record. A variable for the type of e-liquid and/or its characteristics is the water content of the e-liquid.

An electronic cigarette vaporizer includes a heating element for heating an e-liquid and a microcontroller; the microcontroller determines the type and/or characteristics of the e-liquid being used and uses that as an input to automatically control the power delivered to the heating element to heat the e-liquid in a manner suitable for that specific type of e-liquid, or e-liquid with those characteristics. The e-liquid can be supplied from a cartridge and that cartridge then includes a record of the type of e-liquid stored in the cartridge and/or its characteristics and the microcontroller reads that record or is provided data from that record. A variable for the type of e-liquid and/or its characteristics is the water content of the e-liquid.

An electronic cigarette vaporiser includes a heating element and a microcontroller; the microcontroller monitors or measures the airflow speed or pressure drop over an air-pressure sensor or other sensor and uses that as an input to control the power delivered to the heating element. The microcontroller can compensate for a very strong inhalation by applying more power during that inhalation as compared to a very light inhalation to ensure that the heating element is kept at its optimal heating temperature.

An electronic device having an interior volume, the electronic device including a sealing mechanism to prevent ingress of water into the interior cavity. The sealing mechanism having a channel having a first opening at an external environment and a second opening that leads to the interior volume, a membrane that covers the second opening, the membrane being air permeable and water resistant such that the membrane allows air to pass and prevents passage of water up to an upper pressure threshold, a stopper mechanism, and a diaphragm comprising a surface arranged to receive an external water pressure and that is air and water impermeable, the diaphragm being coupled to the stopper mechanism that deflects in response to the water pressure such that the diaphragm actuates the stopper mechanism and seals off the channel from at the first opening preventing water pressure at the membrane from exceeding the upper pressure threshold.

An electronic device having an interior volume, the electronic device including a sealing mechanism to prevent ingress of water into the interior cavity. The sealing mechanism having a channel having a first opening at an external environment and a second opening that leads to the interior volume, a membrane that covers the second opening, the membrane being air permeable and water resistant such that the membrane allows air to pass and prevents passage of water up to an upper pressure threshold, a stopper mechanism, and a diaphragm comprising a surface arranged to receive an external water pressure and that is air and water impermeable, the diaphragm being coupled to the stopper mechanism that deflects in response to the water pressure such that the diaphragm actuates the stopper mechanism and seals off the channel from at the first opening preventing water pressure at the membrane from exceeding the upper pressure threshold.

Present invention relates to pneumatic connector assembly for pneumatically coupling a pressure source and an inflatable mattress or controlling the inflation and/or deflation of said inflatable mattress.

Present invention relates to pneumatic connector assembly for pneumatically coupling a pressure source and an inflatable mattress or controlling the inflation and/or deflation of said inflatable mattress.

An electronic cigarette vaporiser that is the same approximate size as a cigarette and has a square or rectangular cross-section with rounded corners and includes a long PCB inserted lengthwise into the vaporiser. The PBC is not mounted at the mid-point of the cross-section, but at a different position closer to a major face of the vaporiser to permit more room for a rechargeable battery. The cross-section is a squircle.

A drain valve for draining liquid from an enclosed space comprises a movable plunger, which is movable between a closed position in which the plunger does not allow liquid to flow through the drain valve, and at least one open position, in which the plunger allows liquid to flow through the drain valve; and an elastic element, which is configured to urge the movable plunger into its closed position. The plunger is provided with at least one duct extending through the plunger and allowing fluid to flow through the drain valve when the plunger is positioned in its closed position, wherein said at least one duct is closed by a semi-permeable medium, which is permeable for air and water vapor and impermeable for liquid water.