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:
Nov. 09, 2004
Filed:
Nov. 22, 2002
Francis C. Peterson, Spooner, WI (US);
Nesson Enterprises, River Forest, IL (US);
Abstract
In accordance with the present invention, a system is provided for circulating fluids, both gases and liquids, in a body of liquid. The system comprises a rotatable shaft having a tubular segment immersed in the body of liquid. The tubular segment of the shaft is in fluid communication with the fluid to be circulated. Means are provided for rotating the shaft. One or more tubular arms extend radially outwardly from the tubular shaft segment, and are in fluid communication with the tubular shaft segment. Each tubular arm comprises an extension spring which, under static conditions, is substantially straight but which upon rotation of the shaft is believed to be arcuately deflected by hydrodynamic force so as to impel fluid into the body of liquid. The system may be utilized for simply circulating the liquid, or for injecting a gas into the body of liquid. The method and apparatus of the present invention are particularly useful in effecting aeration of water to maximize the concentration of dissolved oxygen therein.