Patent · US Expired

Apparatus for separating particles of tobacco or the like from a gaseous carrier medium

US4264238A · kind A · utility

7Cited by
2References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 2, 1979
Grant dateApr 28, 1981
Priority date
Expiry dateOct 2, 1999

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA24C5/392
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

The discharge end of a supply conduit for a mixture of tobacco particles and air communicates with the top portion of a hollow cylindrical housing for a driven cell wheel whose cells are subdivided into inner and outer chambers by impermeable partitions. The outer chamber of each preceding cell communicates with the inner chamber of the respective next-following cell by way of a sieve which forms part of the corresponding vane of the cell wheel. The outlet for tobacco particles is disposed at the lowermost point of the housing and communicates with successive outer chambers, the same as the discharge end of the supply conduit. A suction pipe for evacuation of gaseous carrier medium has an intake end which is coaxial with the wheel and communicates with successive inner chambers at a level above the axis of the wheel so that the inner chambers of cells whose outer chambers discharge tobacco particles into the outlet are sealed from the suction pipe. The discharge end of the supply conduit has a wall portion which deflects particles of tobacco onto successive partitions of the wheel. A pipe for admission of compressed air which cleans the sieves communicates with successive inner cha…

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