TEAT CUP Russian patent published in 2000 - IPC

FIELD: agriculture, in particular, milking equipment. SUBSTANCE: teat cup has sleeve with boss and teat liner embraced with sucker. Teat liner is positioned within boss. Elastic membrane with openings is positioned within boss perpendicular to axial line. Membrane divides cavity within boss into two chambers. Central opening in upper chamber has diameter exceeding that of openings in membrane and sucker, and side openings in lower chamber are adapted for communicating with atmosphere. Sucker surface adjoining to membrane is provided with axial openings and is positioned for overlapping these openings with membrane in initial position of teat cup. When pressure in upper chamber of boss and in teat liner sucker is changed, teat cup performs vertical oscillating motions relative to teat with increasing frequency by the end of milking process. As a result, teat is weakened and lengthened to maximum extent to provoke milk-producing reflex. Such construction eliminates breaking of connection between teat and udder due to creeping of teat cup over teat. EFFECT: increased efficiency by providing full milking and eliminating necessity for manual stripping operation. 1 dwg