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1. WO2020000095 - ICE BLASTING MACHINE WITH DUAL-MODE OPERATION FOR WATER ICE AND DRY ICE

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

CLAIMS:

1. An ice blasting machine comprising:

a crusher for crushing water ice; and

a crusher-activation mechanism to activate or deactivate the crusher, wherein the crusher is activated to operate in water ice mode and wherein the crusher is deactivated to operate in dry ice mode.

2. The ice blasting machine of claim 1 wherein the crusher is a V-shaped crusher having two jaws.

3. The ice blasting machine of claim 2 wherein the crusher-activation mechanism comprises a reversing cam clutch disengagement system.

4. The ice blasting machine of claim 2 wherein the crusher-activation mechanism comprises a worm gear style crusher teeth retraction mechanism.

5. The ice blasting machine of claim 2 wherein the crusher-activation mechanism comprises a lead screw style crusher tooth retraction mechanism.

6. The ice blasting machine of claim 1 further comprising a portable frame having wheels.

7. An ice-blasting method comprising:

activating a crusher to crush water ice when operating in water ice mode; and

deactivating the crusher when operating in dry ice mode.