Light tube
US11408596B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2019 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Sep 6, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device has a light tube with a cylindrical housing that has a longitudinal axis and encases an electrical circuit including a switch, a rechargeable battery, a secondary induction coil, a receiver circuit, and an elongated light panel. The cylindrical housing includes a ferromagnetic material and an elongated window, and the elongated light panel extends substantially parallel to the longitudinal axis adjacent to the elongated window. The light tube is magnetically held in place by a permanent magnet in a mount and can rotate around a concave surface on the forward side of the mount which has a complementary shape to the cylindrical housing of the light tube. The mount also has a primary induction coil and a transmitter circuit within the interior space of its shell. The mount can rotate on a base, and a power cord operatively engages the transmitter circuit in the mount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.