IP Library Granted Patent US 11,007,090
Granted Patent B2
US 11,007,090 · App. 16/066,026 · Granted May 18, 2021

Method of winding up tampon material

Inventors: Thomas Cankar (Wuppertal, DE); Markus Klar (Wuppertal, DE); Markus Anger (Wuppertal, DE); Martin Bergermann (Wuppertal, DE); Jens-Petter Arnesen (Sezanne, FR)
Assignee: Johnson & Johnson GmbH
A61F13/2085A61F13/2082B65H57/20B65H69/04A61F13/34B65H2701/31
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,007,090
App. No.
16/066,026
Granted
May 18, 2021
Kind
B2
Abstract

An improved apparatus for forming tampon blanks for further processing into compressed, self-sustaining tampons, permits increased speed and accuracy of the process step. The apparatus includes a sliver guide; a gripper capable of reciprocating motion and arranged and configured to cooperate with the sliver 5 guide to grasp an end of a sliver maintained therein; a winding mandrel; a plurality of winding cups; and e) a string application and knotter apparatus comprising a circular ring bearing having a string conveyor mounted thereon. The circular ring bearing of the string application and knotter apparatus defines a plane perpendicular to the sliver guide and motion of the gripper and parallel to the 10 winding axis of the winding mandrel.

Claims (14)

1. Apparatus for forming tampon blanks for further processing into compressed, self-sustaining tampons, the apparatus comprising:

a) a sliver guide;

b) a gripper capable of reciprocating motion and arranged and configured to cooperate with the sliver guide to grasp an end of a sliver maintained therein;

c) a winding mandrel;

d) a plurality of carriers; and

e) a string application and knotter apparatus comprising a substantially rigid circular ring bearing having a string conveyor mounted thereon arranged and configured to rotate about the sliver;

wherein the circular ring bearing of the string application and knotter apparatus defines a plane perpendicular to the sliver guide and motion of the gripper and parallel to the winding axis of the winding mandrel.

2. A process for manufacturing tampon blanks for further processing into compressed, self-sustaining tampons, the process comprising the steps of:

a) drawing a fibrous web from a fibrous web supply, through a sliver guide and across a carrier disposed on a turntable by grabbing a free end of the fibrous web supply with a gripper and drawing the gripper away from the fibrous web supply;

b) severing the fibrous web from the fibrous web supply to form an elongate fibrous web having a first end held by the gripper and a second end, distal the first;

c) elevating the carrier while the first end remains held by the gripper and the second end is restrained by the sliver guide wherein the carrier is disposed perpendicular to a central portion of the elongate fibrous web;

d) advancing a winding mandrel across the central portion of the elongate fibrous web, wherein the winding mandrel has a slot arranged and configured to accept the elongate fibrous web therein;

e) rotating the winding mandrel as the gripper releases the first end of the elongate fibrous web to form a tampon blank; and

f) transferring the tampon blank to the carrier.

Assignments (2)
CHANGE OF NAME Recorded Oct 21, 2025
From: JOHNSON & JOHNSON GMBH
To: KENVUE GERMANY GMBH
Reel/Frame 073188/0552 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 7, 2020
From: CANKAR, THOMAS; KLAR, MARKUS; ANGER, MARKUS; BERGERMANN, MARTIN; ARNESEN, JENS-PETTER
To: JOHNSON & JOHNSON GMBH
Reel/Frame 051753/0652 →