Patent · US Expired

Filter attachment machines

US4290518A · kind A · utility

4Cited by
1References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 3, 1979
Grant dateSep 22, 1981
Priority date
Expiry dateAug 3, 1999

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T83/6558
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

A device for staggering and aligning filter portions cut from multiple-length filter rods includes a first fluted drum which conveys the filter rods (already cut) to a second fluted drum with a rolling plate for rolling at least one portion of each filter rod into a staggered position with respect to another portion of the same rod, at least one stationary finger being arranged to hold adjacent filter portions out of the flutes until they have been rolled to their staggered positions at least some of the filter portions along the flutes of the second drum are then displaced to align all the filter portions.

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