Title:
AIR BLAST DEVICE
Document Type and Number:
Japanese Patent JPH08155837
Kind Code:
A
Abstract:
PURPOSE: To provide an air blast device that can reduce the jet noise of only compressed air after the end of air blast work.
CONSTITUTION: A blow pipe 11 is branched off from a pressure pipe 4, from a position between a transport pipe 8 and a first pressure reducing valve 3, and the tip of the blow pipe 11 is communicated with the lower reaches position of a second switching valve 7 in the transport pipe 8. The blow pipe 11 is provided with a second pressure reducing valve 12 or an orifice and a third switching valve 13 in this order from the upper reaches side.
Inventors:
SHIGA MASAHARU
OZAWA TOSHIO
AOKI YOJI
OZAWA TOSHIO
AOKI YOJI
Application Number:
JP23416694A
Publication Date:
June 18, 1996
Filing Date:
September 02, 1994
Export Citation:
Assignee:
SINTOKOGIO LTD
International Classes:
B24C7/00; (IPC1-7): B24C7/00