TEAT CUP Russian patent published in 2001 - IPC

FIELD: agriculture. SUBSTANCE: teat cup has teat sleeve, circular membrane put onto teat sleeve and adapted for serving as pneumatic doser sensor, and teat tube serving as nonreturn valve. Membrane provides air distribution in portions between teat cup chambers depending upon elasticity of animal udder teats. Nonreturn valve serves for disconnecting chamber positioned under teat from vacuumized milk pipeline and for cycled discharge of milk withdrawn from udder teat. As teat elasticity changes, circular membrane deformation value and periodicity of transfer of circular membrane from one operating state to the other also change. By changing deformation state of circular membrane, ratio of vacuum gage pressure values in chamber positioned under teat and in chambers between walls of teat cup may be regulated so that vacuum extent in the region under teat is altered in proportion to teat elasticity, provided total balance of forces acting upon teat tube and causing flattening of its lower part and disconnection of chamber under teat from vacuumized milk pipeline are maintained. For short time interval mentioned balance of forces is disturbed, effective section of teat tube is opened and milk is withdrawn into milk pipeline. EFFECT: increased efficiency and improved versatility by adaptation of milking units to cows of various breeds. 4 cl, 2 dwg