Milking inflations
AssigneeHi-Life Rubber, Inc.
InventorsDon F. Siddall, Vincent L. Hoffman
Life of this patent
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Abstract
An improvement in milking inflations having a teat-receiving collar wherein the inner periphery of the collar is of generally uniform thickness and the projection of the periphery onto a plane passed perpendicularly to the major axis of the body portion of the inflation has a generally circular configuration with a perimeter of finite length, i.e., the projection is substantially circular. The inner periphery of the collar is formed of a series of contiguous wave forms. If the aforementioned plane is passed through the periphery of the collar, the contiguous wave forms may be considered as representing periodic oscillations above and below the aforementioned plane, the true length of the inner periphery along the wave forms exceeding the length of the projected perimeter.
Claims3
A milking inflation comprising an elongated, tubular body portion, a generally cylindrical cuff portion merged with one end of said body portion and a teat-receiving collar extending inwardly from generally the point of merger of said body and cuff portions, and extending conically upwardly beyond the end of said body portion when said cuff portion is folded down over the former, the inner periphery of said collar (a) being of generally uniform thickness, (b) having a generally circular configuration about its perimeter and (c) being formed of a series of contiguous wave forms free of sharp corners representing periodic oscillations above and below a plane passed through the center of said inner periphery perpendicularly to the major axis of said body portion, so that a portion of the true length of said inner periphery lies above said plane and a portion lies below said plane, said true length of said inner periphery along said wave forms exceeding the finite length of said periphery projected onto said plane, the portion of said true length of said inner periphery lying above said plane being unequal to the portion lying below said plane.
Dependencies are inferred from the claim text.