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US 9,434,565 B2Granted
Winding method
AssigneeDuracell U.S. Operations, Inc.
InventorsDale F. Bittner, Christopher R. Lyman
Life of this patent
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Abstract
A winding method includes rotating a winding drum; transferring a first web structure from a first lay down station to the web stabilizing bed of a first winding station; cutting the web structure; contacting the web structure with a web assembly hold down element, winding the web structure into a roll assembly; and discharging the roll assembly from the winding drum.
Claims7
A method of winding a layered structure comprising steps of:
- a) rotating a winding drum, the winding drum having a circumference;
- b) transferring a first web structure from a first lay down station to a first winding station of the winding drum;
- c) contacting the web structure with a winding mandrel;
- d) contacting the web structure with a web assembly hold down element, wherein the web assembly hold down element is disposed adjacent to and extends along a portion of the circumference of the winding drum;
- e) winding the web structure by rotating the winding mandrel;
- f) fixing a trailing edge of the web structure relative to the wound structure;
- g) discharging the wound structure from the winding drum, wherein the first lay down station and the web assembly hold down element are provided by different structure.
4 more elements
Dependencies are inferred from the claim text.