| 摘要 |
FIELD: instrument making. ^ SUBSTANCE: filtration cartridge has a drain hole with a locked edge directed inward that can be bent out from the first lower locked position into the second upper locked position and vice versa. The cartridge support comprises a branch pipe that enters the cartridge drain hole. The said branch pipe incorporates one actuator to move the locking edge in setting the cartridge from the first lower locked position into the second upper locked position whereat locking edge abuts tightly upon the branch pipe to clamp it. ^ EFFECT: eliminating extra safety elements. ^ 27 cl, 8 dwg |
