HOLLOW SPACE CREATOR Russian patent published in 1994 - IPC

FIELD: construction. SUBSTANCE: hollow space creator has hollow body with located in it exciter of vertically directed force pulses. Working chamber of hollow space creator shock worker is connected with source of working agent and is made in the form of located along longitudinal axis body and mounted in it transversal partitions of pipe with stoppers at its ends. Pipe has holes on its surface to communicate with cavity of body. Shock worker is mounted in cavity of the body with capability to contact with opposite surfaces of pipe. In the case, body has branch pipe to divert working agent and transversal partitions have holes. EFFECT: hollow space creator is used in construction in reinforced pieces production. 4 cl, 5 dwg