Water pressure-type aeration device

• US 6,398,194 B1
• Filed: 11/29/1999
• Issued: 06/04/2002
• Est. Priority Date: 11/29/1999
• Status: Expired due to Fees

• Current Assignee: Shih-Tse Wang, Tsung-Hsin Tsai
• Original Assignee: Shih-Tse Wang, Tsung-Hsin Tsai
• Inventors: Tsai, Tsung-Hsin, Wang, Shih-Tse
• Primary Examiner(s): BUSHEY, CHARLES S
• Application Number:
  US09/450,010
• Time in Patent Office: 918 Days
• Field of Search: 261/36.1, 261/37, 261/77, 261/120, 261/121.1, 261/124, 261/DIG.75, 963/71
• US Class Current: 261/36.1
• CPC Class Codes: B01F 23/23121 having injection means, e.g. nozzles with circumferential outlet
• CPC Class Codes: B01F 25/21 with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
• CPC Class Codes: B01F 25/312 with Venturi elements; Details thereof
• CPC Class Codes: B01F 25/31242 the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit B01F25/31243 takes precedence
• CPC Class Codes: B01F 33/503 Floating mixing devices
• CPC Class Codes: C02F 7/00 Aeration of stretches of water
• CPC Class Codes: Y02W 10/10 Biological treatment of water, waste water, or sewage

Abstract

A water pressure-type aeration device including a water pump that generates powerful water pressure, with the water pumped through a water distribution head and a number of water distribution tubes which are placed throughout the water of a pond (or tank). The ends of the water distribution tubes are installed to cavitation housings, with the each of the cavitation housings connected at an angle of 90 degrees to the fresh air supply tubes which are directly conjoined to air filter and delivery devices floating on the surface of the water. When water is conveyed under pressure to the cavitation housings at the ends of the water distribution tubes, rear pressure constrictive openings in conjunction with a spray guide elements inside the housings generate powerful water pressure and the resulting friction across the tubular openings of fresh air supply tubes draw air in that is mixed with water in the cavitation housings and discharged from spray nozzles, thereby replenishing oxygen in the water. As such, the structure of the present invention promotes confluent activity in the water of a pond (or tank) that revitalizes the water into an oxygen-rich aquatic environment.

Claims

1. A water pressure aeration device comprised of:

a water pump equipped with two pipes that respectively convey the pumped water, of which a small pipe conveys water to a water filtering basin and another large outlet pipe conveys water under pressure to a water distribution head;

said water distribution head consists of a round cover that is connected to the end of said outlet pipe by a rotated thread and washer fastening means;

said water distribution head cover has a number of short tubular connector fittings, with the fittings along an outer periphery of said cover being relatively short, while the tubular connector fitting at the center section of said cover is longer to facilitate installation;

a cavitation housing that is a T-shaped tubular fixture having at the bottom section a low planar stabilizer appendage;

a water distribution tube is connected to one end of said tubular fixture, means forming a rear pressure constrictive opening is disposed posteriorly inside said cavitation housing, with a facing spray guide element inclined downward and situated between a fresh air intake opening of a vertically connected fresh air supply tube and said means for forming said rear pressure constrictive opening;

said guide element is approximately one-third the distance away from the nearest end of the fixture, thereby functioning to increase pressure of the water column flowing through said, water distribution tube at said rear constrictive opening and, furthermore, said spray guide element deflects the water column downward;

a front pressure constrictive opening is formed in said tubular fixture anterior to a spray nozzle; and

a mixture chamber is formed in between said front and rear pressure constrictive openings such that after the water column flows through said rear pressure constrictive opening and passes both said spray guide element and the fresh air supply tube opening, fresh air is drawn into said mixture chamber and swirled into a cavitated wash and then discharged from said spray nozzle into the water of a pond or tank for utilization;

an air filter and delivery device consisting of an air filter and delivery device float situated on the underside that enables stable buoyancy on the surface of the water;

an air filter housing is installed on said float that contains a horizontally placed activated carbon filter screen element, at the upper section of which is an air intake opening, an outer dust filter screen hood, a top protective cover, an air filter and delivery device decorative object, and a threaded shaft is inserted through the middle of the air filter and delivery device secured with a nut to fasten the assembled structure of the air filter and delivery device.