Method and device for sandblasting, especially removing in a precise manner and/or compacting and/or coating solid surfaces
US6997780B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2002 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Mar 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method and device for sandblasting, especially removing in a precise manner and/or compacting and/or coating solid surfaces, such as removing defective spots of paint from coats of lacquer, smoothing out soldered and welded joints, removal of contaminated concrete coatings or rust coatings, hardening, planing or coating metal surfaces, wherein a sandblasting agent is added by means of gravity and/or due to the effect of an injector to a carrier air flow produced by an underpressure, conveyed in a flexible hose- line system (13) to a jet lance (14) before being guided via a processing surface subject to low pressure by a sandblasting chamber, whereupon it is returned in the air flow, purified and returned to the circuit, whereby acceleration of the sandblasting agent is produced by the low pressure and the sandblasting chamber is displaced from one processing surface to another. The aim of the invention is to increase the sandblasting speed in a significant manner while at the same time economically adjusting the amount of power furnished to the processing surface for various wide-ranging fields of application using as little power as possible yet providin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.