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:
Jun. 27, 1989
Filed:
Aug. 25, 1987
Applicant:
Inventor:
John D Boadway, Kingston, CA;
Assignee:
B.W.N. Vortoil Rights Co. Pty. Ltd., Danenong, AU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B04C / ; B04C / ;
U.S. Cl.
CPC ...
209144 ; 209211 ; 2105121 ; 554591 ; 554592 ;
Abstract
A special form of fluid cyclone in which the velocity energy in the exit fluid is converted into exit pressure, thus permitting the device to discharge to atmospheric pressure or a higher pressure while a vacuum may exist in the central core of the vortex. A vortex finder defines an uninterrupted annular outlet passage that gradually increases in cross sectional flow area from an axial inlet to a tangential outlet. The length of the axial inlet portion is sufficiently long relative to the radial portion to insure a gradual transition of velocity energy into pressure, thereby avoiding vortex instability in the outlet passage.