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:
Oct. 16, 1990
Filed:
Mar. 14, 1986
Applicant:
Inventors:
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
414217 ; 23921425 ; 239418 ; 406 71 ;
Abstract
A centrifugal pump for feeding pulverized material such as coal particles from a low pressure zone into a high pressure zone, said pump having nozzles mounted on a rotor. The pulverized material is ejected into the high pressure space through the nozzles, and gas is supplied to the nozzles to control the flow rate of the pulverized material. Devices are provided that ensure mass flow of the material through the nozzles, even if the nozzles have a short length.