Patent · US Expired

Expanding apparatus for agricultural product or the like

US5365950A · kind A · utility

6Cited by
11References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 9, 1994
Grant dateNov 22, 1994
Priority date
Expiry dateFeb 9, 2014

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S131/901
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

An expanding apparatus supplies an expanding agent to an impregnating vessel, and continuously supplies and discharges a material, e.g., a tobacco material to and from the impregnating vessel through a valve while pressure-increasing or pressure-decreasing the material, thereby continuously expanding the material. The expanding agent supplied to the impregnating vessel, the valve, and the like is recovered and, air, an impurity gas, or the like mixed in it is removed. Thereafter the expanding agent is pressure-increased to a high pressure and supplied to the impregnating vessel and the valve again.

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