Milking device
First Claim
1. A milker comprising a walled chamber with a lower milk exit and upper entry nipples adapted to be connected to teat cups and communicate milk into said chamber, said exit being connectible to a vacuum milk line and having a valved seat adjacent the bottom of said chamber, said chamber having vacuum inlet means that maintains an operating vacuum therein, a float valve on said seat and said valve being pivoted to the milker to rise and expose the exit responsive to the level of milk in said chamber, said valve having curved sides, said nipples extending upwardly from leads into the chamber side wall adjacent the float, and positioned to direct at least a substantial portion of the milk inflow downwardly to below the upper surface of the float tangentially with respect to said sides, whereby said float can rise unimpeded during the inflow of milk.
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Accused Products
Abstract
A milker has a lower base with a concave bottom and a lower exit under vacuum that can be closed by a float with valve until the milk level pivots and/or raises the float to open the exit. An enclosure body is fitted on the base and includes a main vacuum inlet and a milk inlet nipple positioned and angled to direct milk inflow at the side and/or below the float. An enclosure cap is releasably fitted on the top of the enclosure body and mounts an air valve, pulsation nipples and a further vacuum inlet. A central stem from the bottom extends up through a central passageway in the float and also through the cap to afford a fulcrum or support for an arm that pivots or slides to close the main vacuum inlet when the air valve is opened. The float can pivot and rise to a limited extent when milking or when the milker is inverted for washing. The assembled cap, enclosure body and base are interfitted and sealed when the inlets and milk outlet are in alignment. With the assembled milker, there is no milk backflow and the float acts as a baffle for milk inflow. When the milker is drained of milk, the float promptly valves the exit shut to preserve the vacuum.
8 Citations
15 Claims
- 1. A milker comprising a walled chamber with a lower milk exit and upper entry nipples adapted to be connected to teat cups and communicate milk into said chamber, said exit being connectible to a vacuum milk line and having a valved seat adjacent the bottom of said chamber, said chamber having vacuum inlet means that maintains an operating vacuum therein, a float valve on said seat and said valve being pivoted to the milker to rise and expose the exit responsive to the level of milk in said chamber, said valve having curved sides, said nipples extending upwardly from leads into the chamber side wall adjacent the float, and positioned to direct at least a substantial portion of the milk inflow downwardly to below the upper surface of the float tangentially with respect to said sides, whereby said float can rise unimpeded during the inflow of milk.
- 14. A milker comprising a walled chamber with a lower milk exit and upper entry nipples adapted to be connected to teat cups and communicate milk into said chamber, said exit being connectible to a vacuum milk line and having a valved seat adjacent the bottom of said chamber, said chamber having vacuum inlet means adapted to maintain an operating vacuum therein, a float valve on said seat and said valve being pivoted to the milker to rise and expose the exit responsive to the level of milk in said chamber, said valve being generally oval when viewed from the side, said nipples extending upwardly from leads into the chamber side wall adjacent the float and positioned to direct at least a substantial portion of the milk inflow downwardly to below a horizontal centerline of the float, whereby said float can rise unimpeded during the inflow of milk.
Specification