PUMPING DEVICE Russian patent published in 2017 - IPC B05B11/00 

FIELD: engines and pumps.

SUBSTANCE: pumping device contains a head (2) of the pump and a container (20) for the liquid to be fed. The head (2) contains the feed providing tube, which is in the fluid communication with the interior of the container (20). Fluid communication between the feed providing tube and the interior of the container (20) is provided by the feeding tube (28), which interacts with the feed providing tube for the check valve function provision. The end (48) of the feeding tube (28) is located inside of the feed providing tube end, and return valve function is provided by means of hole (46) in the side wall of the feeding tube (28) at the section, where the feed providing tube overlaps the feeding tube. The feed providing tube provides the sealing over this hole (46) for preventing the penetration of fluid, when the internal pressure in the container (20) is below the external pressure. The method of pumping device sterilizing, including the liquid in the container (20), contains this device exposure to gamma radiation. Additionally, the method includes providing the possibility of the gas pressure reduction, generated by the heating of liquid through the gas discharge by means of check valve function. The container (20) for the liquid to be distributed through the pumping device includes the feeding tube (28). The feeding tube (28) has a free end and a hole (46) in the side wall near the free end.

EFFECT: provision of possibility to adjust the internal pressure by reducing the liquid container internal volume due to the fluid pumping off without the pump complication.

14 cl, 18 dwg