Title:
ABRASIVE GRAIN BLAST METHOD, AND DEVICE FOR SAME
Document Type and Number:
Japanese Patent JP2958767
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To raise the operating efficiency of a cleaning device by preventing pollution of the working environment and a waste of abrasive grains both resulting from scatter of abrasive grains and dispensing with halts of the cleaning device while cleaning objects are changed.
SOLUTION: A plurality of storage chambers 2a and 2b for accommodating abrasive grains Q are intercommunicated via a two-way passage 3 for vacuum airflow A, and are further communicated with a vacuum means P via a selector valve 10. The vacuum direction is changed over at intervals of preset periods via the selector valve 10, when a main portion 21 of a cleaning object 20 is exposed to the two-way passage 3 for surface cleaning.
Inventors:
Yamada, Tadao
Application Number:
JP1998000242712
Publication Date:
July 30, 1999
Filing Date:
August 28, 1998
Export Citation:
Assignee:
TAIYO DENSAN KK
International Classes:
B24C1/04; B24C3/32; (IPC1-7): B24C1/04; B24C3/32