Rotating electric switch actuated by fixed magnetic means, usable for a surface cleaning device
US4959628A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 1989 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | Jul 26, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L13/144
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A rotary electrical switch is provide for a portable power operated surface treating device having a fixed handle assembly, a hollow generally cylindrical roller supported for rotation on and relative to the handle assembly, and an absorbent generally cylindrical applicator sleeve coaxially supported on said roller for rotation therewith. The roller is driven by an electrical motor contained within it and powered by a rechargeable battery also supported within the roller. Operation of the motor is controlled by the rotary electrical switch which includes a pair of magnetically responsive electrical switch contacts contained within the roller and a magnetic switch actuator mounted on the handle assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.