Abrading – Abrading process – Utilizing fluent abradant
Patent
1998-04-08
2000-07-18
Rachuba, M.
Abrading
Abrading process
Utilizing fluent abradant
451 40, 451 89, 451 90, B24C 100
Patent
active
060899565
ABSTRACT:
The present invention relates to a device and a method for abrasive blasting, in particular for the sand-blasting of relatively small workpieces, for example in the hobby sector (model building). The device comprises a chamber (2), which is closed in an essentially airtight manner on all sides and has at least one, and preferably a plurality of, closable openings (3), it being possible to evacuate the chamber. A blasting pipe unit (5), which can be introduced into the chamber via one of the openings and which has an inlet (12) for the blasting agent, an inlet (13) for air and an outlet opening (14) for the blasting agent, is connected to a blasting-agent container (8) via a feed line (7). Both the method and the device operate using subatmospheric pressure, so that it is possible, for example, to use a commercially available vacuum cleaner for evacuating the chamber. Owing to the subatmospheric pressure, the blasting agent remains in the chamber or is extracted via the extraction appliance, so that disturbance to the environment is minimal.
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patent: 4300318 (1981-11-01), Bown
patent: 4603515 (1986-08-01), Gilmore et al.
patent: 5143102 (1992-09-01), Blaul
patent: 5177911 (1993-01-01), Ruemelin et al.
Gunther Bohler GmbH
Rachuba M.
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