Heat retaining bottle
AssigneeChien-Cheng Lin
InventorsChiencheng Lin, Yuefeng Zheng
Life of this patent
Estimating the term…
Abstract
A thermos consists of a body, a cap and a heating device. The body has an inner wall, an outer wall and a bottle opening, where an intermediate space is formed between the inner and outer walls. The cap is fitted to the bottle opening. The heating device contains an induction coil, a donut magnet and a resistance heater. The induction coil is wound in the inner wall. The donut magnet is placed in the intermediate space and it can move freely within the intermediate space. The resistance heater is electrically connected to the induction coil and touches the inner wall.
Claims3
A thermos, comprising:
- a body with an inner wall, an outer wall and a bottle opening, an intermediate space defined between the inner and outer walls;
- a cap fitted to the bottle opening;
- and
- a heating device, including:
- an induction coil wound in the inner wall;
- a donut magnet in the intermediate space to move freely within the intermediate space;
- a resistance heater in circuit with the induction coil and touching the inner wall;
- a thermal switch to disconnect an electrical connection between the induction coil and the resistance heater when a temperature of the thermos is higher than a set value;
- and
- a rectifier and a charger, the rectifier to rectify an induced current for the charger.
A thermos, comprising:
- a body with an inner wall, an outer wall, and a bottle opening, the inner and outer walls defining an intermediate space;
- a cap fitted to the bottle opening;
- and
- a heating device, including:
- an induction coil in the intermediate space;
- a bar magnet to move freely within the intermediate space;
- a resistance heater in circuit with the induction coil, the resistance heater in contact with the inner wall
- a thermal switch to disconnect the induction coil from the resistance heater when a temperature is higher than set value;
- and
- a rectifier and a charger, the rectifier to rectify an induced current for use by the charger.
A thermos, comprising:
- a bottle having an opening;
- a cap fitted to the bottle opening, the cap defining an internal heating room;
- and
- a heating device, including:
- an induction coil in the heating room;
- a bar magnet to move within the induction coil;
- a resistance heater electrically connected to the induction coil, the resistance heater to heat the inner wall when the cap is fitted to the bottle opening
- a thermal switch to sense a temperature of the thermos, the thermal switch to disconnect an electrical connection between the induction coil and the resistance heater when the temperature is higher than a set value;
- and
- a rectifier and a charger, the rectifier to rectify an induced current, the rectified current to be used by the charger.
Dependencies are inferred from the claim text.