Teat cup inflation
阅读：1007发布：2021-06-11
专利汇可以提供Teat cup inflation专利检索，专利查询，专利分析的服务。并且A teat cup assembly for an automatic milking machine including an inflation assembly having a retaining diaphragm integrally formed with the cup liner for engaging the teat of a cow to retain the cup against falling off while venting the space between the teat and liner at the end point of milking. The inflation is formed by initially molding the liner and diaphragm from a single mass of resilient elastic material, with the diaphragm having vent means integrally formed thereon to permit the egress of air into the liner at the end point of the milking operation. The configuration of the vent means facilitates molding the liner and diaphragm as a unitary structure.，下面是Teat cup inflation专利的具体信息内容。
1. An inflation for use in a teat cup assembly for automatic milking machines employing a vacuum milk line and a vacuum pulsator, said cup assembly including a rigid substantially cylindrical outer shell having a ledge extending around its inner periphery adjacent its upper end defining an inflation seat, the improvement wherein said inflation comprises an elongated hollow cup liner having a body portion adapted to receive the teat of a cow, said body portion terminating at its lower end in an outlet adapted to be attached to the vacuum milk line of a milking machine and at its upper end in a retaining diaphragm extending substantially transverse to said body portion and having a central opening therein coaxial with and having a diameter less than the diameter of said body portion, said body portion and said retaining diaphragm being integrally molded from a single homogeneous mass of resilient elastic material, and vent means integrally formed on said diaphragm for permitting the egress of air into said liner at the end point of milking, said vent means including a plurality of radially extending corrugations formed on said diaphragm whereby the periphery of said central opening in undulated, said cup liner and said diaphragm being initially molded as portions of a unitary coaxiAl tube with said body portion and the diaphragm portion having substantially equal peripheries, said corrugations extending generally coaxially of said diaphragm portion whereby the mean diameter of said diaphragm portion is substantially less than the diameter of said body portion, and an expansion ring being mounted within said body portion whereby said diaphragm is deflected inwardly substantially transverse to the longitudinal axis of said body portion.
2. The inflation defined in claim 1 wherein said vent means comprises a plurality of radially extending corrugations formed on said diaphragm whereby the periphery of said central opening is undulated.
3. The inflation defined in claim 1 wherein said opening is said lower end has a periphery substantially less than the periphery of said body portion.
4. In a teat cup assembly for an automatic milking machine of the type employing a vacuum milk line and a vacuum pulsator, said cup assembly including a rigid outer cylindrical shell having an enlarged portion at the upper open end thereof defining an inflation seat and retaining ring, and a resilient inflation mounted coaxially within said cup and being retained on said seat by said retaining ring, the improvement wherein said inflation comprises an elongated hollow cup liner member integrally molded from a single homogeneous mass of resilient elastic material, said liner including an open bottom end adapted to be connected to the vacuum milk line of the milking machine and a body portion adapted to receive the teat of a cow, said body portion terminating adjacent its top end in a diaphragm-forming segment having a plurality of axially extending corrugations formed therein, said corrugations being spaced around the periphery of said body whereby the mean diameter of said diaphragm-forming portion is substantially reduced, and an expansion ring having an outer periphery substantially larger than the internal periphery of said body portion positioned in said portion in fixed spaced relation from said top end whereby said diaphragm-forming segment is deflected inward substantially transversely to the longitudinal axis of said body portion to define a retaining diaphragm having an undulated central opening therein defined by the open top end of said body portion, said undulated central opening being of a diameter less than the diameter of said body portion whereby at least a portion of said diaphragm adjacent said central opening is normally maintained under a light compressive force, said retaining diaphragm being adapted to be deflected inwardly of said body portion to engage a cow''s teat at said periphery to retain the cup assembly from falling off the teat with said corrugations permitting the egress of air between the teat and said body portion at the end point of milking.
5. The teat cup assembly defined in claim 4 wherein the distance from said open top end to said expansion ring is greater than the difference in the diameter of said expansion ring and said body portion whereby the diameter of said central opening is normally less than the diameter of said body portion, said corrugations permitting said diaphragm to be readily deflected axially inward to expand said central opening to substantially the diameter of said body portion to accommodate the teat of a cow.
6. The teat cup assembly defined in claim 5 wherein the diameter of said bottom end is substantially less than the diameter of said body portion.
7. The teat cup assembly defined in claim 5 wherein there are at least four of said corrugations formed in said diaphragm portion.
8. The teat cup assembly defined in claim 5 wherein there are six of said corrugations in said diaphragm.
9. A method of forming an inflation for use in a teat cup assembly of an automatic milking machine, comprising the steps of molding an elongated tubular member including a substantially cylindrical body portion with an outlet at one end and a plurality of circumferentially spaced corrugations formed in its side walls at the other end thereof, said corrugations extending axially from the open end of said tubular member to define a diaphragm-forming portion at said other end, the periphery of said diaphragm-forming portion being substantially equal to that of said body portion with said corrugations producing a mean diameter of said diaphragm-forming portion which is substantially less than the diameter of said body portion, and installing an annular expansion ring coaxially within said tubular member adjacent the junction thereof with said diaphragm-forming portion, said expansion ring having a diameter substantially greater than the diameter of said body portion whereby said tubular member is radially expanded to form a head thereon to seat said inflation in a rigid teat cup shell and to deform said diaphragm-forming portion into a substantially disk-shaped diaphragm having a central opening therein coaxial with said body portion, said corrugations producing an undulated periphery on said central opening.
10. The method defined in claim 9 further comprising the step of spacing said expansion ring from said other end a distance which is greater than the difference in the diameter of said expansion ring and said body portion whereby said central opening has a diameter less than the diameter of said body portion.
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