Discharge of blasting media from a treating chamber
US4524550A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1982 |
| Grant date | Jun 25, 1985 |
| Priority date | — |
| Expiry date | Nov 30, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24C9/003
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In the blasting of articles with impact media, the mixture of used media and fragments of material thereby removed from said articles fall to the bottom of the thermally insulated treating chamber. Novel structure is herein disclosed for discharging such mixture through an opening in the bottom of the chamber, utilizing a rotating sweeping device having a plurality of sweep arms extending outwardly from a central hub each of the arms being formed of segments to approximate the shape of an ogee curve. Heat leakage into the chamber is minimized by driving the sweeping device from below the bottom of the chamber by an enclosed shaft passed through the insulated bottom of the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.