Method and apparatus for removing and collecting dust
US4780927A · kind A · utility
Inventor
Key dates
| Filing date | Aug 11, 1986 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Aug 11, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/221
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A portable device for removing and collecting dust, particularly from vehicle friction brake and clutch assemblies, comprises a base having a high efficiency filter and vacuum assembly, a transparent evacuation hood designed to surround the brake or clutch, a vacuum hose for removing contaminated air from the hood to the base, and adjustable means for disposing the hood at variable heights above the base. The filter and vacuum assembly, which may serve as a stand alone unit having application outside the automotive field, is oriented such that a disposable filter is located in a compartment upstream of the vacuum motors and may be removed from the base while the vacuum motors are running, thereby preventing dispersal of hazardous materials during the filter changing operation. Apertures provided in the hood include two gloved portals for allowing a worker's hands and arms to have unimpeded access to the brake and clutch assemblies. A highly portable embodiment includes an inflatable hood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.