Metal fitting cleaner
US5937470A · kind A · utility
Inventor
Key dates
| Filing date | Mar 11, 1998 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Mar 11, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B13/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A metal fitting cleaner includes a support; an electrical power supply; a first bearing assembly mounted by the support; a first brush detachably mounted by the first bearing assembly for pivotal movement; a first electric motor which is mounted by the support and which is mechanically coupled to the first bearing assembly for pivotably driving the first brush; a second bearing assembly mounted by the support; a second brush detachably mounted by the second bearing assembly for pivotal movement; and a second electric motor which is mounted by the support and which is mechanically coupled to the second bearing assembly for pivotably driving the second brush. Preferably, the first and second brushes are of different size or configuration. The first bearing assembly includes a first normally-open pressure switch in electrical communication with the first electric motor for conducting electrical power from the electrical power supply to the first electric motor when the first normally-open pressure switch detects an axial force no less than a first threshold force. Likewise, the second bearing assembly includes a second normally-open pressure switch in electrical communication with the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.