Apparatus for making knots in drawstrings of catamenial tampons

Knots and knot tying – Knotters

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28120, 289 161, B65H 6904

Patent

active

048365874

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.

REFERENCES:
patent: 1481754 (1924-01-01), Stalson
patent: 2913270 (1959-11-01), Sachenroder
patent: 3490801 (1970-01-01), Feighery
patent: 3814469 (1974-06-01), Simon
patent: 3868133 (1975-02-01), Franzen
patent: 3970022 (1976-07-01), Kopatz et al.
patent: 4490894 (1985-01-01), Friese

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