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:
Jan. 31, 1995
Filed:
Oct. 12, 1993
Applicant:
Inventor:
Reneau Dufour, Breakeyville, CA;
Assignee:
Les Traitements des Eaux Poseidon Inc., Outremont, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
415116 ; 415188 ; 4151701 ; 261 87 ; 277 / ; 277 74 ;
Abstract
Disclosed is a centrifugal liquid pump, preferably of the rotary disc type, which incorporates a gas injection assembly of very simple yet efficient structure, whereby up to 15% per volume of a gas such as air, may be mixed with the pumped liquid. The gas injection is achieved with a gas feed pipe that enters the pump through its axial inlet and with a plurality of gas injector pipes that projects from the gas feed pipe radially within the impeller.