Cleaning method and apparatus
US4617064A · kind A · utility
68Cited by
4References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1984 |
| Grant date | Oct 14, 1986 |
| Priority date | — |
| Expiry date | Jul 31, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24C1/003
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A particle-blast cleaning apparatus using sublimable carbon dioxide pellets and a high pressure carrier gas. The apparatus includes a body which houses a rotary pellet transport. The transport conveys pellets from a gravity feed storage hopper to a high pressure carrier gas stream for application of the pellets to a discharge nozzle. Leakage of high pressure gas into the rotary transport is inhibited by the application of a force of gas seals which force is derived from carrier gas pressure. The apparatus enables the use of relatively high pressure carrier gas, the complexity and cost of the apparatus and method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.