Celanese Gmbh

Other

Robert E Swander

William L Millen

Ronald O Bryant

Richard E St Pierre

Rebecca A Hyde

Kenneth R Krimminger

A continuous rod of a product such as a cigarette filter material is coated with a treating liquid by being passed axially through a cylindrical applicator zone comprising a permeable cylindrical wall, the cylindrical wall being concentrically enclosed within a reservoir and manifold zone connected to a source of liquid. The feed supply for the liquid additive can be pressurized and/or heated, so that application of the additive can be in either liquid or vapor form. The process and apparatus of this invention may be used alone or in conjunction with prior art homogeneous applicators and processes. When used to apply a plasticizer to a rod of continuous filament tow, e.g. for use in producing cigarette filters, annular regions of varying concentrations of the plasticizer are produced in the rod. A relatively dense region of plasticized fiber can be produced on the outside of the filter. Filter rods having wrapping paper uniformly adhered about the periphery of the rod can be produced. By installing the applicator apparatus between the transport jet and the garniture tongue of a typical cigarette filter rod making machine, the invention permits the production of satisfactory paper wrapped filter rods having unique depression on loading characteristics.

Localized liquid additive applicator system for continuous cylindrical

A continuous rod of a product such as cigarette filter material is coated with a treating liquid by being passed axially through a cylindrical applicator zone comprising a permeable cylindrical wall, the cylindrical wall being concentrically enclosed within a reservoir and manifold zone connected to a source of liquid. The feed supply for the liquid additive can be pressurized and/or heated, so that application of the additive can be in either liquid or vapor form. The process and apparatus of this invention may be used alone or in conjunction with prior art homogeneous applicators and processes. When used to apply a plasticizer to a rod of continuous filament tow, e.g. for use in producing cigarette filters, annular regions of varying concentrations of the plasticizer are produced in the rod. A relatively dense region of plasticized fiber can be produced on the outside of the filter. Filter rods having wrapping paper uniformly adhered about the periphery of the rod can be produced. By installing the applicator apparatus between the transport jet and the garniture tongue of a typical cigarette filter rod making machine, the invention permits the production of satisfactory paper wrapped filter rods having unique depression on loading characteristics.

The present invention relates to high speed processes and apparatus for the manufacture of cigarette filter rods. In accordance with this invention it has been discovered that in a process of manufacturing filter elements from opened and deregistered crimped continuous filament tow, wherein said tow is conducted from a mechanical forwarding means through an aspirating jet positioned adjacent a compacting means and wherein means are provided for dissipating aspirating fluid, that filter rod pressure drop and weight variations are reduced by causing the opened and deregistered tow to contact a drag inducing tow width and direction controlling means positioned substantially intermediate said mechanical forwarding means and said aspirating jet.

Method and apparatus for forming cigarette filter rods

An electrical power generating system is disclosed which utilizes as a source of energy the otherwise wasted energy expended by motor vehicles moving along a roadway. The system includes a vibrational transducer which is mounted in the roadway and which is constructed for producing electrical energy directly from the vibrational energy imparted to the transducer from the motor vehicles passing thereacross. The electrical energy thus produced may be used to charge a storage battery for powering various devices, such as traffic signals, warning devices, and the like.

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Charlotte, NC, United States of America

Robert E Swander