Adjustable magnetic counterbalance
US11852212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2020 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Jun 3, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2222/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An adjustable magnetic counterbalance assembly wherein a counterbalance force of the adjustable magnetic counterbalance is adjustable. The adjustable magnetic counterbalance assembly includes at least one ferromagnetic tube; a magnet disposed in the at least one ferromagnetic tube and configured to be axially movable and wherein the magnet is configured to be rotationally movable relative to the respective at least one ferromagnetic tube; wherein the counterbalance force is configured to be adjustable by adjusting the rotational position between the magnet and a respective ferromagnetic tube to change the polar alignment of the magnet. Alternatively, the adjustable magnetic counterbalance assembly changes the counterbalance force based on the relative alignment of the poles of one magnet to an adjacent one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.