Apparatus for making knots in drawstrings of catamenial tampons
AssigneeHauni Richmond, Inc.
InventorAlfred Hinzmann
Life of this patent
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Abstract
One end of a drawstring which is connected to a catamenial tampon at the other end is pulled downwardly by suction while an intermediate portion of the drawstring is convoluted around a hollow mandrel to form a closed loop. The one end of the drawstring is then drawn into the mandrel by suction to convert the loop into a relatively loose knot which is or can be tightened by exerting a pull by suction upon the one end while and after the convoluted portion of the drawstring is stripped off the mandrel.
Claims9
Apparatus for making a knot in an elongated flexible element, such as the drawstring of a catamenial tampon, comprising means for forming in the element a closed loop between the ends of the element, including means for overlapping two intermediate portions of the element;
- means for pneumatically threading one end of the element through the loop to thus form a relatively loose knot;
- and means for tightening the knot, including means for pulling one end of the element away from the other end until the loop closely surrounds an intermediate portion of the element.
Dependencies are inferred from the claim text.