Catalin Petrescu

US Patent:

7048260, May 23, 2006

Filed:

May 12, 2004

Appl. No.:

10/844593

Inventors:

Peter S. Gross - Plymouth MN, US
Catalin Petrescu - Eden Prairie MN, US

Assignee:

Aeromix Systems, Incorporated - Golden Valley MN

International Classification:

B01F 3/04

US Classification:

261 28, 261 87, 261 91, 261 93

Abstract:

The present invention is an aerator for inducing air flow below the surface of a liquid. The aerator includes a motor having a drive shaft. A propeller is operably connected to the drive shaft of the motor and a blower is operably connected to the motor. The aerator further includes an air flow path that has an inlet and an outlet, with the inlet connected to the blower and the outlet located near the propeller. The blower and the propeller rotate at different speeds.

US Patent:

20030030157, Feb 13, 2003

Filed:

Aug 10, 2001

Appl. No.:

09/927152

Inventors:

Catalin Petrescu - Eden Prairie MN, US
Peter Gross - Plymouth MN, US

Assignee:

Aeromix Systems, Inc. - Minneapolis MN

International Classification:

B01F003/04

US Classification:

261/092000, 261/120000, 210/219000, 210/242200

Abstract:

The invention is a paddlewheel aerator comprising a support structure, a drive mechanism contained within the support structure, a rotatable shaft extending horizontally from the drive mechanism; and a plurality of paddlewheels surrounding the shaft. A plurality of support legs are formed integrally with the support structure. In a preferred embodiment, a watertight drive box is positioned within the support structure. The drive box has a removable cover and a substantially water tight seal for preventing ingress of water. The drive box contains a motor drivably connected to the shaft. The motor is contained within an upper portion of the drive box so that the motor is positioned at a vertically elevated level compared to the shaft.