An electric heating device comprises a housing with a partition wall which separates a connection chamber from a heating chamber for dissipating heat and from which at least one PTC heating element with a heater casing protrudes in the direction toward the heating chamber. The at least one PTC element and conductor tracks are supported in the heater casing in an insulated manner. The heater casing is sealed against the partition wall by way of a seal arranged in a receptacle of the partition wall circumferentially surrounding the heater casing. A press ring is arranged in the receptacle and surrounds the heater casing circumferentially, securing the seal in the receptacle. A method of forming such an electric heating device also is disclosed.

A light fixture includes a housing and an LED light assembly provided on the housing. A visor extends from the housing at least partially around the LED light assembly. A heater element is connected to the visor.

A multi-purpose detection circuit for object detection and vehicle position determination is described. For example, the circuit is configurable for detecting foreign metallic objects, living objects, and a vehicle or type of vehicle above an inductive wireless power transmitter. The circuit is also configurable for determining the vehicle's position relative to the inductive wireless power transmitter. An example apparatus includes a measurement circuit including a multiplexer, electrically connected to a plurality of inductive and capacitive sense circuits, for measuring one or more electrical characteristics in each of the inductive and capacitive sense circuits according to a predetermined time multiplexing scheme. The apparatus further includes a control and evaluation circuit for evaluating the measured electrical characteristics and determining at least one of a presence of a metallic object, a living object, a vehicle, or a type of vehicle, and a vehicle position based on changes in the measured electrical characteristics.

It is an objective of the present invention to reduce the disadvantages in currently available Vaporizers by providing a method and system of controlling the output voltage of the Battery such that the electrical current within and the temperature of the heating element and Extract are controllable. The present invention discloses the Battery that operates by supplying voltage that varies with time and provides various automatically or manually selectable voltage-time profiles. The voltage is controlled by an integrated controller that is able to vary the battery output voltage via voltage modulation and is able to continuously vary the output voltage. The voltage is modulated using pulse width modulation. The integrated controller is capable of storing and executing an embedded program for voltage modulation.

Provided is a life jacket having a function of maintaining body temperature and preventing a drowning accident when water distress occurs. The life jacket includes: an inflatable buoyant member configured to be inflated to provide buoyancy; a jacket including a sealed bag, and being wearable on an upper body of a user; a vacuum pack having a spout and provided inside the sealed bag, the spout being configured such that an end thereof is exposed to an outside of the jacket; a self-triggering inflating body provided inside the vacuum pack; a heating element configured to generate heat by reacting with water flowing into the vacuum pack; and an interlock-type opening member, which is configured to open a stopper by being in conjunction with inflation of the inflatable buoyant member, the stopper being configured to normally close an inlet opening of the spout.

A separate-loading firearm, which may be configured as a muzzle-loading pepperbox pistol, uses a battery-powered electric resistance heating element to ignite a propellant. A relatively long current pulse, which may be of controllable duration, is used to ignite the propellant and a much shorter pulse may be used to test the integrity of the heater. Detection of the firearm's recoil may be used to terminate the relatively long firing pulse, which can increase the service life of the heating element and reduce the current drain from the battery.

Provided is an LED lamp for prevention of freezing, comprising: a housing opened at a front side thereof; an LED unit disposed inside the housing; a lens mounted at the opened front side of the housing and configured to allow lighting light emitted from the LED unit to transmit therethrough; a heating member disposed at the rear side of the lens and configured to generate heat by being supplied with power; a sensor unit disposed at the inside of the housing and configured to sense the internal temperature of the housing; and a control unit configured to control the power supplied to the heating member depending on the internal temperature of the housing, sensed by the sensor unit.

A hot stapler comprises a body, two heat conducting units, an electrical storage unit, a circuit unit, and a switch button. The body includes a head and a handle. The electrical storage unit is disposed in the handle and has a voltage value less than 6 volts. A first wire and a first resistor of the circuit unit are electrically mounted between one of the two heat conducting units and the electrical storage unit. A second wire and a second resistor of the circuit unit are electrically mounted between the other one of the two heat conducting units and the electrical storage unit. The switch button is disposed on the handle and is switchable between a power-on position and a power-off position.

A heating tape comprises an insulated heating element that includes a heating element layer comprising a polymer composite having conductive particles and at least one set of conductive electrodes at least partially embedded in the polymer composite and extending along at least a substantial portion of the length of the heating tape. A heating tape system for a pipe or other surface, further includes a power ramp controller having a solid state relay component to regulate an in-rush of current to the heating element. The heating tape system also includes a connector having multiple contact points.

The present invention is directed to an electrical heating device, and in particular, a planar electrical heating device and method for assembling the planar electrical heating apparatus. The planar electrical heating apparatus operable using AC or DC power comprising: an outer shell with an upper shell layer joined to a lower shell layer and defining an internal cavity therebetween; a heating element having at least one heating conductor and a first and a second non-heating conductors positionable with the internal cavity, between the upper shell layer and lower shell layer; a first connector end portion secured to the first and second non-heating conductors for coupling to an electrical power supply; a sealing end portion enclosed the connector end portion for electrical isolation and protection from water ingress.