Patent · US Expired

Apparatus for making composite filter plugs

US4044659A · kind A · utility

26Cited by
5References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 14, 1975
Grant dateAug 30, 1977
Priority date
Expiry dateOct 14, 1995

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA24D3/0291
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

Apparatus for producing composite filter plugs for cigarettes or other smokers' products has two sets of conveyors which feed filter rod sections of different types to the flutes of a rotary assembly conveyor. The latter assembles the sections into groups each having a section of first and second type and moves the groups to an auxiliary conveyor which transports the groups sideways to successive pneumatic holders of a transfer conveyor. The transfer conveyor has two carriers which rotate about parallel axes and are coupled to each other by linkages, one for each holder. The linkages cause the holders to rotate relative to that carrier which supports the holders so that the orientation of holders remains unchanged during travel through 90.degree. or 270.degree. when the groups are taken over by successive increments of a web which is moved lengthwise and is draped around the resulting rod-like filler to form therewith a rod. The rod is severed to yield composite filter plugs each having a section of the first type and a section of the second type.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.