An electronic cigarette having double atomizing cores and a method for controlling the heat balance thereof. The electronic cigarette having double atomizing cores includes: a cigarette rod, the cigarette rod includes an oil compartment having a lithium battery, a circuit board, a fixing plate, a first atomizing core, and a second atomizing core arranged therein; the lithium battery supplies power to the circuit board, and the circuit board controls the first atomizing core and the second atomizing core to maintain balanced heating under a single-core alternating operating mode and a double-core simultaneous operating mode, the fixing plate is used for fixing the first atomizing core and the second atomizing core and is connected with the positive and negative electrodes of the lithium battery.

A method for generating a clock signal from an AC power supply signal includes receiving a reference signal at a first input of a comparator and receiving the AC power supply signal at a second input of the comparator. A clock signal is output by the comparator based on a comparison of the reference signal and the AC power supply signal, such that transitions of the clock signal take place while the reference signal is at a trigger voltage. Following each clock signal transition, the reference signal is changed from the trigger voltage to a hysteresis voltage that reduces a likelihood of the comparator outputting, immediately after each clock signal transition, a spurious transition of the clock signal due to noise on the AC power supply signal. The reference signal is then returned from the hysteresis voltage to the trigger voltage prior to return of the AC power supply signal to a level intended to cause a further clock signal transition at the output of the comparator.

Disclosed herein are inventions for heating without combustion plant material or volatile compounds or oils in a disposable consumable such as a cartridge. The consumable upon insertion into a heating chamber or receivor is held in place and is restricted from rotation about its axis. The insertion may form indents or shaped portions of the consumable. It may have a case with a cartridge interface to receive the consumable into the heating system, a key guide, at least one heater element, an on/off switch, a battery, a temperature sensor; a controller in signal communication with the at least one heater element, battery, temperature sensor and the on/off switch.

A toaster includes an activation element, a power circuit, a heating device and a control device. When the activation element is moved to turn on the power circuit, the control device is powered such that an electromagnet is activated to attract a retaining element to hold the activation element and to actuate a two-state switch, which allows passage of electrical power to the heating device. After a time interval has elapsed, the control device stops the electromagnet from attracting the retaining element such that the retaining element no longer actuates the two-state switch, which cuts off electric power provided to the heating device.

A method of controlling aerosol production in an aerosol-generating device is provided, the device including: a heater including a heating element to heat an aerosol-forming substrate; and a power source to provide power to the heating element, the method including: controlling the power provided to the heating element such that in a first phase power is provided such that a temperature of the heating element increases from an initial temperature to a first temperature, in a second phase power is provided such that the temperature of the heating element drops below the first temperature, and in a third phase power is provided such that the temperature of the heating element increases again, the aerosol-forming substrate, or a portion of the aerosol forming substrate, being heated continuously or repeatedly to generate aerosol over a period of more than 30 seconds.

A system for heating a fluid and an electromagnetic acoustic transducer EMAT system is provided. Both systems have a drive circuit. The amount of heat and the amplitude (and acceleration) of the vibrations is respectively controllable by controlling an input to a terminal of a switch. The heating system comprises a porous graphite foam conductor which is exposed to an electromagnetic field generated by an oscillating circuit. When exposed, the foam conductor conducts induced electric current which heats the same and a fluid in contact with the conductor. The EMAT system comprises at least one magnet configured to generate a static magnetic field, an oscillating circuit and a working element. The working element, when exposed to the static magnetic field and the electromagnetic field produced by the oscillating circuit, vibrates against a load. The vibrations dry the load.

An adaptable system for defogging a mirror in a steamy bathroom having a tube assembly with a plurality of openings with an impeller and a plurality of heating elements for blowing hot air through the openings onto the fogged mirror. In one example embodiment, the tube assembly has louvers directing the hot air from the openings. The system has a plurality of mounting assemblies configured for all types of mirrors operative for coupling to the tube assembly, such as a portable mounting assembly with a rechargeable battery that selectively attaches on or adjacent to a mirror. The system has an articulated arm mounting assembly in one example embodiment. The system has a mounting assembly fixture in another example embodiment. A kit comprises the tube assembly and at least one mounting assembly.

Disclosed herein are methods and systems to vaporize extract, plant material containing organic material and the like, including utilizing a cartridge with a heaty transfer body which may be disposable. The cartridge may be heated in zones or portions. The cartridge may form the inhalation pathway thereby reducing the accumulation of dirt and odor in the heating device. One disclosed vaporizer system has a base with a cartridge interface, a heater element, an on/off switch, a battery, a temperature sensor in proximity to the heater element; a controller in signal communication with the heater element, battery, temperature sensor and the on/off switch; that mates with a disposable cartridge.

A flexible heating device includes a pouch defined in-part by a flexible heating textile that defines a cavity. The size of the cavity defined by the pouch is adjustable to snugly receive objects, e.g., sex toys, of different sizes. In embodiments, the pouch supports closing structure to facilitate adjustment of the size of the cavity to accommodate different size objects. In embodiments, the flexible heating textile includes an adapter that receives power from a power source such as a battery or wall plug to heat the flexible heating textile.

A circuit configuration is disclosed for use in an appliance includes a power switch configured to open and close a first group of electrical contacts, where the contacts while closed cause the appliance to energize upon a user initiating a use of the appliance. The circuit configuration also includes a primary timing device electrically connected to the first group of electrical contacts, the primary timing device being actuated upon energization of the appliance and the primary timing device being configured to de-energize the appliance after a first time period by opening the first group of electrical contacts. The circuit configuration also includes a secondary timing device electrically connected to the power switch by a second group of electrical contacts, where the secondary timing device is configured to de-energize the appliance after a second time period, where the second time period is set based on the first time period.