Milking machine

阅读:845发布:2021-06-11

专利汇可以提供Milking machine专利检索,专利查询,专利分析的服务。并且A milking machine has teat cups each provided between the shell and the liner with a pulse space subjected alternately to atmospheric pressure and a vacuum to expand and contract the liner while the space within the liner is subjected to a milking vacuum. When the milk flow rate is below a certain level, a monitoring apparatus automatically regulates the flow of air from the pulse space to effect a gradual opening of the liner, to avoid the usual sudden opening.,下面是Milking machine专利的具体信息内容。

1. A milking machine including teat cups each having a shell and a liner, the pulse space between the shell and the liner being subjected alternately to atmospheric pressure and a vacuum to expand and contract the liner while the space within the liner is subjected to a milking vacuum, a milk flow indicator associated with the teat cups for detecting changes in the flow rate of milk from the teat cups, and means operable in response to changes in the flow rate of milk as detected by said indicator for regulating the flow of air from the pulse space to effect gradual opening of the liner when the milk flow rate is below a predetermined level, said regulating means comprising a solenoid valve having a valve seat, a valve member, resilient means biasing the valve member toward the valve seat to close the valve, and a solenoid operable to open the valve against the action of said resilient means when the milk flow rate exceeds said predetermined level, the force of said resilient means being sufficient to move said valve member to its closed position when said solenoid is deenergized.
2. The milking machine of claim 1, in which one of said valve member and valve seat has a bleed groove which allows a restricted passage of air through the valve when the valve is closed.
3. The milking machine of claim 2, in which the valve member is actuatable by said resilient means to close the valve when air is flowing from the pulse spaces of the teat cups, said resilient means allowing the valve to open when air is flowing in the opposite direction to provide a generally unrestricted flow of air to said pulse spaces even when the solenoid is not energized.
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