Teat cup assembly

Claim 1

AN IMPROVEMENT IN A TEAT CUP ASSEMBLY HAVING A SUBSTANTIALLY RIGID SHELL HAVING A PORT ADAPTED TO BE CONNECTED TO THE PULSATING VACUUM LINE OF A MILKING MACHINE, A RESILIENT LINER POSITIONED IN SAID SHELL FOR RECEIVING THE TEAT OF A COW IN THE UPPER PORTION THEREOF AND BEING ADAPTED TO HAVE ITS LOWER END CONNECTED TO THE VACUUM MILK LINE OF SAID MILKING MACHINE, SAID IMPROVEMENT COMPRISING: (A) A RESILIENT DISK ADAPTED TO BE POSITIONED IN THE TOP PORTION OF SAID SHELL, (B) SAID DISK HAVING A SUBSTANTIALLY CENTRALLY LOCATED APERTURE DEFINED BY A CONTINUOUS EDGE HAVING ALTERNATING UPPER AND LOWER PORTIONS FOR RECEIVING THE TEAT OF A COW, (C) SAID UPPER EDGE PORTIONS ENGAGING THE WALL OF SAID TEAT TO PREVENT SAID TEAT CUP ASSEMBLY FROM DROPPING OFF OF SAID TEAT, (D) SAID DISK HAVING A PLURALITY OF LOWER CHANNEL SECTIONS FORMED IN THE TOP OF SAID DISK BETWEEN SAID UPPER EDGE PORTIONS AND EXTENDING OUTWARDLY FROM THE LOWER EDGE PORTIONS OF SAID CENTRAL APERTURE, AND (E) SAID TEAT ENGAGING UPPER EDGE PORTIONS MAINTAINING SAID LOWER EDGE PORTIONS FROM THE TEAT WALL FOR ADMITTING AIR THROUGH SAID LOWER CHANNEL SECTIONS INTO THE TOP OF SAID LINER AT THE END POINT OF MILKING.