VACUUM INJECTOR Russian patent published in 2003 - IPC

FIELD: meat industry, in particular, vacuum transportation of farce and like materials. SUBSTANCE: injector has squeezing out device with two paired screws arranged for periodic rotation, vacuumizing system, and control system. Vacuum system has first valve positioned forward of vacuum pump, and gas pipeline equipped with second valve. Injector control system provides for opening of first valve and closing of second valve during rotation of screws and, vice versa, closing of first valve and opening of second valve upon stopping of screws. EFFECT: increased efficiency, reduced probability of vacuum system locking and reduced amount of residual air in farce. 5 dwg