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:
May. 18, 2004
Filed:
Feb. 26, 2003
Huan-Jan Chien, Hsinchui, TW;
PolyVane Technology Corp., Hsinchu, TW;
Abstract
The present invention is an improved structure for an oxygen adding and aeration device includes a pump; a two-layer impeller, which is installed on a top of the pump; a pump case, which covers on outside of the two-layer impeller; an air tube, which is installed in impeller inlets of a lower-layer impeller of the two-layer impeller, a top end of the air tube protrudes out of a water level; when starting the pump, the two-layer impeller is then driven to deliver air from the air tube into the lower-layer impeller, partial water is sucked from filter holes into air tube to mix with air becoming an air-water flow, continuously, the air-water injection flow is injected by the lower-layer impeller and the lower-layer outlet of the pump case to form an air-water injection flow, other partial water is sucked from the impeller inlet of the upper-layer impeller into the air tube, continuously, the water passes through the impeller outlet of the upper-layer and the upper-layer outlet of the pump case to form a water injection flow. Via a high-speed and strong structure of the upper-layer water injection flow guiding the lower-layer air-water injection flow moving forward so as to that the time and the distance of bubbles retaining in water are both raised to increase oxygen in water.