Blasting method and apparatus

Details Blasting method and apparatus Blasting method and apparatus

2003-07-01

2009-02-03

Hwu, Davis D (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Processes

Of discharge modification of flow varying

C239S406000, C239S434000, C239S417500

Reexamination Certificate

active

07484670

ABSTRACT:
Blasting method for cleaning surfaces, wherein a carrier gas is supplied under pressure through a blasting line (10) to a blasting nozzle (14), and liquid CO2is supplied through a feed line (32), is transformed into dry snow through expansion and is fed into the blasting line (10), characterised in that CO2from the feed line (32) is introduced into the blasting line (10) through an expansion volume (34) having an enlarged cross section.

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patent: WO 00/74897 (2000-12-01), None

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