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US 12,672,668 B2Granted
Applying an additive from within during shaping of a sheet into a rod
AssigneePhilip Morris Products S.A.
InventorMatteo Balboni
Life of this patent
Estimating the term…
Abstract
A method for producing a rod (3) containing herbaceous material comprises the steps of: providing a sheet material (5) containing herbaceous material; shaping the sheet material into a rod-shape by conveying the sheet material along a conveying direction (7) through a funnel-shaped converging device (13); and dispensing an additive (21) onto the sheet material within the converging device.
Claims18
A method for producing a rod containing herbaceous material, comprising the steps of:
- providing a sheet material containing herbaceous material;
- shaping the sheet material into a rod-shape by conveying the sheet material along a conveying direction through a funnel-shaped converging device;
- and
- dispensing an additive onto the sheet material within the converging device;
- wherein the sheet material is a cast of a slurry containing herbaceous material or of a paste containing herbaceous material;
- wherein the additive is dispensed as a liquid;
- wherein the liquid flows on the sheet material,
- wherein the additive is dispensed within the converging device through an end section of a pipe;
- and
- wherein a wall thickness of the end section of the pipe varies around a circumference of the end section of the pipe, and wherein the pipe comprises a base section provided within the converging device upstream of the end section and a bent section connecting the base section with the end section.
7 more elements
A method for producing a rod containing herbaceous material, comprising the steps of:
- providing a sheet material containing herbaceous material;
- shaping the sheet material into a rod-shape by conveying the sheet material along a conveying direction through a funnel-shaped converging device;
- and
- dispensing an additive onto the sheet material within the converging device;
- wherein the sheet material is a cast of a slurry containing herbaceous material or of a paste containing herbaceous material;
- wherein the additive is dispensed as a liquid;
- wherein the liquid flows on the sheet material;
- and
- wherein the additive is dispensed onto the sheet material at a position within the converging device, at which a maximum diameter of the rod-under-formation is at most 400 percent of a maximum diameter of the final rod-shape upon exiting the converging device.
6 more elements
A method for producing a rod containing herbaceous material, comprising the steps of:
- providing a sheet material containing herbaceous material;
- shaping the sheet material into a rod-shape by conveying the sheet material along a conveying direction through a funnel-shaped converging device;
- and
- dispensing an additive onto the sheet material within the converging device;
- wherein the sheet material is a cast of a slurry containing herbaceous material or of a paste containing herbaceous material;
- wherein the additive is dispensed as a liquid;
- wherein the liquid flows on the sheet material;
- wherein the additive is dispensed within the converging device through an end section of a pipe;
- and
- wherein the rod-shape is formed around the end section of the pipe in an at least essentially coaxial arrangement between the rod and the end section of the pipe.
7 more elements
A method for producing a rod containing herbaceous material, comprising the steps of:
- providing a sheet material containing herbaceous material;
- shaping the sheet material into a rod-shape by conveying the sheet material along a conveying direction through a funnel-shaped converging device;
- and
- dispensing an additive onto the sheet material within the converging device;
- wherein the sheet material is a cast of a slurry containing herbaceous material or of a paste containing herbaceous material;
- wherein the additive is dispensed as a liquid;
- wherein the liquid flows on the sheet material;
- wherein the additive is dispensed within the converging device through an end section of a pipe;
- and
- wherein an outer circumferential shape of the pipe within the converging device and upstream of the end section of the pipe is different from an outer circumferential shape of the end section of the pipe.
7 more elements
A method for producing a rod containing herbaceous material, comprising the steps of:
- providing a sheet material containing herbaceous material;
- shaping the sheet material into a rod-shape by conveying the sheet material along a conveying direction through a funnel-shaped converging device;
- and
- dispensing an additive onto the sheet material within the converging device;
- wherein the sheet material is a cast of a slurry containing herbaceous material or of a paste containing herbaceous material;
- wherein the additive is dispensed as a liquid;
- wherein the liquid flows on the sheet material;
- wherein the additive is dispensed within the converging device through an end section of a pipe;
- and
- wherein an outer diameter of the pipe decreases along the conveying direction.
7 more elements
A method for producing a rod containing herbaceous material, comprising the steps of:
- providing a sheet material containing herbaceous material;
- shaping the sheet material into a rod-shape by conveying the sheet material along a conveying direction through a funnel-shaped converging device;
- and
- dispensing an additive onto the sheet material within the converging device;
- wherein the sheet material is a cast of a slurry containing herbaceous material or of a paste containing herbaceous material;
- wherein the additive is dispensed as a liquid;
- wherein the liquid flows on the sheet material;
- wherein the additive is dispensed within the converging device through an end section of a pipe;
- and
- wherein the end section of the pipe is coated with a friction reducing coating.
7 more elements
A method for producing a rod containing herbaceous material, comprising the steps of:
- providing a sheet material containing herbaceous material;
- shaping the sheet material into a rod-shape by conveying the sheet material along a conveying direction through a funnel-shaped converging device;
- and
- dispensing an additive onto the sheet material within the converging device;
- wherein the sheet material is a cast of a slurry containing herbaceous material or of a paste containing herbaceous material;
- wherein the additive is dispensed as a liquid;
- wherein the liquid flows on the sheet material;
- wherein the additive is dispensed within the converging device through an end section of a pipe;
- and
- wherein an angle between the end section of the pipe and the conveying direction is less than 10 degrees.
7 more elements
A device for producing a rod from sheet material, comprising:
- a funnel-shaped converging device;
- a conveyor device configured to convey sheet material along a conveying direction through the funnel-shaped converging device;
- and
- a pipe having an end section configured for dispensing an additive from the end section within the converging device,
- wherein a wall thickness of the end section of the pipe varies around a circumference of the end section of the pipe;
- and
- wherein the pipe comprises a base section provided within the converging device upstream of the end section and a bent section connecting the base section with the end section.
4 more elements
Dependencies are inferred from the claim text.