The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 1989
Filed:
May. 18, 1988
Earl R Collins, Jr, La Canada, CA (US);
Jerry W Suitor, El Toro, CA (US);
David Dubis, Morgantown, WV (US);
Abstract
A continuous flow ash lockhopper includes an ash hopper at the outlet of a high temperature, high pressure reactor vessel containing heated high pressure gas, a fluidics control chamber having an input port connected to the ash hopper's output port and an output port connected to the input port of a pressure letdown means, and a control chamber connected to a variable pressure control fluid (gas or steam) supply for regulating the pressure in the control chamber to be equal to or greater than the internal gas pressure of the reactor vessel, whereby the reactor gas is contained while ash is permitted to continuously flow from the ash hopper's output port, impelled by gravity. The fluidics control chamber may be provided with a variable port to inject control fluid at a desired velocity. The control fluid impinges the flow of ash into the chamber at a right angle to create a vortex in the chamber with the vortex path being from the input port around the output port and then crossing generally over the output port offset from the input port.