The invention is an electronic cigarette vaporizer system operable in a discrete mode to reduce the amount of vapor produced by a vaporizer that forms part of the system, compared to a normal mode. The discrete mode causes the vapor produced to be less visible or noticeable, compared to a normal mode.

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.

A product delivery system includes a product transport vehicle having at least a plurality of tank compartments, internal valves, control valves, fluid property sensors, temperature sensors, overfill sensors, pressure sensors, a system controller, and a memory module. The product delivery system may be operable to communicatively connect with the loading system at a loading station, a fleet management system, or a cloud system to obtain information, such as the amount of liquid product to be loaded into a tank compartment. The product delivery system may be operable to compare the volumes of the tank compartments with the amounts of liquid product to be loaded at a loading station and maintain the internal valve or control valve in a locked state or transition the internal valve or control valve to an unlocked state based on the comparison. Other comparisons based on liquid type or distribution tank volume can also be made.

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.

An e-liquid cartridge designed to provide e-liquid for an electronic cigarette vaporizer system, the cartridge including a chip that stores and outputs (i) a unique identity for the cartridge and/or (ii) data defining the e-liquid stored in the cartridge, and the cartridge being adapted to be inserted into or form an integral part of the electronic vaporizer system. The data stored and output by the chip defines one or more of: flavor, nicotine strength, manufacturing batch number, date of manufacture, date of filling, tax data, quantity of e-liquid stored in the cartridge.

An electronic cigarette vaporizer includes a heating element and a microcontroller; the microcontroller monitors or measures external or ambient temperature and uses that as a control input. The control input automatically controls the power delivered to the heating element to ensure that the heating element operates at its optimal temperature. Where ambient temperatures are monitored or measured as very cold, then the power to the heating element is automatically increased to compensate.

A fluid management system includes a fluid management controller and a fluid dispenser. The controller authorizes control of the one or more fluid management components over a wireless interface. A dispensing meter can be activated by an authentication device. The fluid meter includes a cartridge valve with a valve cartridge and a valve stem. The cartridge valve guides the valve stem and provides the only sealing surface for the dynamic seals and control seal disposed on the valve stem. The handheld meter dispenses through a nozzle, which includes an overmolded stem tip that generates a laminar fluid flow as the fluid exits the nozzle. The handheld fluid meter includes circuitry configured to invert the orientation of a visual output provided by a display of the handheld fluid meter to facilitate installation of the handheld fluid meter for use in an oil bar application.

An electronic cigarette vaporizer system includes a case and a vaporizer that is stored in the case; the system includes a non-contact sensor that detects release or withdrawal of the vaporizer from the case. When withdrawal of the vaporizer is detected, then the vaporizer electronic circuitry changes state, e.g. to a ready mode, or a pre-heating mode in which an inhalation detector is activated or to a heating mode, where an atomizing unit in the vaporizer is at least partly activated so that the vaporizer is fully heated when the first inhalation is taken.

A system and method prevent product-type contamination in a bulk liquid storage tank. A control unit receives an indication of a storage product type in the bulk storage and a delivery product type in the tanker truck. The control unit compares the delivery product type with the storage product type and controls delivery based on a result of the comparison.