Patent · US Expired

Trickle valve

US6569317B1 · kind B1 · utility

2Cited by
11References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 9, 2000
Grant dateMay 27, 2003
Priority date
Expiry dateFeb 9, 2020

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10G11/18
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

An apparatus comprising a trickle valve positioned at the lower end of a vertical dipleg of a gas-solids separator comprising a pair of co-operable clamshell doors arranged in such a manner that mutual opposite swinging movement between a closed position wherein the doors adjoin along a midline, and an open position wherein the doors swing outwardly around a horizontal axis of rotation, is possible, and wherein either clamshell door is provided with means to press the doors together towards a closed position and at least one clamshell door is provided with an opening.

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