Apparatus for perforating a nonlinear line of weakness
AssigneeThe Procter & Gamble Company
InventorsDeborah Sue Slovut, Laura Marie Tanno, Kathryn Christian Kien
Life of this patent
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Abstract
A perforating apparatus has a base having at least one counter component. The counter component has a length, Lcc, and a nonlinear repeat length. A support is operatively engaged with the base. A blade having a length, LB, is disposed on the support so as to cooperate in interacting relationship with the counter component. The blade has a plurality of teeth. A web material is perforated as it passes between the base and the support and the blade cooperates with the counter component. A drive is associated with one of the support and the base to reciprocally shift the one of the support or the base for a distance, D, in a shifting direction.
Claims21
An apparatus for providing a nonlinear line of weakness on a web material, the apparatus comprising:
- a base comprising at least one counter component having a length, LCC, wherein the counter component comprises a repeating pattern of nonlinear shapes each having a shape width, W;
- a support operatively engaged with the base;
- a blade having a length, LB, and being disposed on the support so as to cooperate in interacting relationship with the counter component, wherein the blade has a plurality of teeth, wherein a web is perforated as the web passes between the base and the support and the blade cooperates with the counter component;
- and
- a driving means associated with at least one of the support and the base to reciprocally shift the at least one of the support or the base in an axial shifting direction by a distance, D, that corresponds to the shape width, W, during perforation of the web.
Dependencies are inferred from the claim text.