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US 7,743,773 B2Granted
Over-wrap for smoking article
AssigneePhilip Morris USA Inc.
InventorCharles L. Gaworski
Life of this patent
Estimating the term…
Abstract
An over-wrap for connecting a tobacco rod and a cigarette filter. The over-wrap includes a tipping wrapper and a plurality of raised ribs extending from the tipping wrapper and forming a plurality of channels between the tipping wrapper and the plug wrap. The plurality of channels allow air to flow from a tobacco rod end of the filter to a plurality of ventilation holes within a plug wrap of the filter when the over-wrap is wrapped around the filter and tobacco rod.
Claims10
An over-wrap adjacent a tobacco rod and a filter comprising:
- a tipping wrapper;
- and
- a plurality of raised ribs extending from the tipping wrapper and forming a plurality of channels between the tipping wrapper and the filter, wherein the plurality of channels allow air to flow from a tobacco rod end of the filter to a plurality of ventilation holes within a plug wrap of the filter when the over-wrap is wrapped around the filter and the tobacco rod,
- wherein the over-wrap is crimped at a butt end of the filter to prevent leakage.
1 more element
A cigarette comprising:
- a tobacco rod including a tobacco filler and a wrapper around the tobacco filler;
- a filter comprising a filter material and a plug wrap wrapped around the filter material;
- and
- an over-wrap connecting the tobacco rod and the filter, the over-wrap comprising:
- a tipping wrapper;
- and
- a plurality of raised ribs extending from the tipping wrapper and forming a plurality of channels between the tipping wrapper and the plug wrap, wherein the plurality of channels allow air to flow from a tobacco rod end of the filter to a plurality of ventilation holes within the plug wrap,
- wherein the over-wrap is crimped at a butt end of the cigarette to prevent leakage.
5 more elements
Dependencies are inferred from the claim text.