Nonlinear line of weakness formed by a perforating apparatus
AssigneeThe Procter & Gamble Company
InventorsKathryn Christian KIEN, Deborah Sue SLOVUT, Jeffrey Moss VAUGHN
Life of this patent
Estimating the term…
Abstract
A web includes a curvilinear line of weakness. The curvilinear line of weakness includes a plurality of perforations. Each of the plurality of perforations is separated by a bond area. Each of the plurality of perforations has a perforation length and each bond area has a non-perforation length. In one embodiment, at least two of the perforations lengths are substantially equal. In an alternate embodiment, at least two of the non-perforations lengths are substantially equal. In yet another embodiment, at least two of the non-perforations lengths are substantially unequal and at least two of the perforation lengths are substantially unequal.
Claims21
A web comprising:
- a curvilinear line of weakness, the curvilinear line of weakness comprising a plurality of perforations, wherein each of the plurality of perforations is separated by a bond area, and
- wherein each of the plurality of perforations has a perforation length and each bond area has a non-perforation length, and
- wherein at least two of the perforations lengths are substantially equal.
A web comprising:
- a curvilinear line of weakness, the curvilinear line of weakness comprising a plurality of perforations, wherein each of the plurality of perforations is separated by a bond area, and
- wherein each of the plurality of perforations has a perforation length and each bond area has a non-perforation length, and
- wherein at least two of the non-perforations lengths are substantially equal.
A web comprising:
- a curvilinear line of weakness, the curvilinear line of weakness comprising a plurality of perforations, wherein each of the plurality of perforations is separated by a bond area, and
- wherein each of the plurality of perforations has a perforation length and each bond area has a non-perforation length, and
- wherein at least two of the non-perforations lengths are substantially unequal and at least two of the perforation lengths are substantially unequal.
Dependencies are inferred from the claim text.