TEAT CUP Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: teat cup comprises a body 1 with a flexible rubber liner 2 and an interwall 5 and a teat cup chamber 6 therebetween. Installed on the side wall of the body 1 is a pipe 4 for delivery of variable vacuumetric pressure. Said pipe 4 protrudes into interwall chamber 5 and its outlet hole is closed by rubber liner 2. In the course of milking the rubber liner cannot expand because the outlet hole of the pipe 4 is closed and air cannot be sucked out through the pipe which rules out stretching of the rubber liner in the teat cup, reduces the creeping of the cup onto the teat in the course of milking and permits extraction of milk without final operation of machine milking. EFFECT: improved design. 1 dwg