Milling jar with integrated lifters

摘要

A milling jar has a jar body and a jar neck. The jar body has an internal surface and an external surface. Ridges with gently sloping slides, called “lifters,” are formed by indenting the surface of the jar wall so that the internal surface projects toward the center of the jar. Because the depressions (on the external surface) and the lifters (on the internal surface) are segmented, portions of the circumference of the jar remain cylindrical. The jar neck has a lid that secures the materials inside the jar when the lid is fastened.

主权项

1. A milling jar, comprising:
a jar body formed as a cylindrical wall to define an internal volume, the cylindrical wall closed at a first end and open at a second end; a jar neck extending from the second end of the cylindrical wall and configured to receive a lid to seal the jar; a plurality of lifters formed as segmented linear indentations in the cylindrical wall that extend into the internal volume of the jar, the segmented linear indentations having a long dimension and a short dimension, the long dimension aligned axially along the cylindrical wall, the lifters radially aligned with one another and spaced apart from one another around the circumference of the cylindrical wall to leave at least two completely uninterrupted radially-aligned cylindrical regions along the cylindrical wall.