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US 4,655,847 AGranted
Cleaning method
OwnerTsuyoshi Ichinoseki, Hirobumi Kato +2inventors
InventorsTsuyoshi Ichinoseki, Hirobumi Kato, Shuji Miyahara, Harumi Kimuro
Life of this patent
Estimating the term…
Abstract
Dry-ice particles are blasted against an object to be cleaned under the presence of ice particles, whereby drawbacks in the case of blasting the dry-ice particles alone can be eliminated.
Claims1
A cleaning method comprising:
- blasting a mixture of abrasive dry-ice particles and abrasive ice particles against an object to be cleaned.
Dependencies are inferred from the claim text.