Patent · US Expired

Dry feeder for finely divided solids into high pressure atmosphere

US4557403A · kind A · utility

2Cited by
1References
10Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 13, 1984
Grant dateDec 10, 1985
Priority date
Expiry dateApr 13, 2004

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01F11/021
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A feeder for finely divided solids from atmospheric pressure into a high pressure atmosphere. It has a chute to hold the solids at atmospheric pressure, and a valve with seals to deliver the solids into a loading chamber. There is an arrangement for pressurizing the loading chamber, and the chamber is oriented so that the solids will discharge through another valve by gravity flow into the high pressure atmosphere after pressurization of the chamber. There is also an arrangement for displacing the high pressure atmosphere from the chamber after discharge of the solids and before the next delivery of another charge from the chute.

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