Fluid treatment apparatus

• US 5,672,268 A
• Filed: 05/15/1996
• Issued: 09/30/1997
• Est. Priority Date: 04/03/1995
• Status: Expired due to Fees

• Current Assignee: Red Sea Fish Dharm Ltd.
• Original Assignee: Red Sea Fish Pharm Ltd.
• Inventors: Marks, Neil, Shagas, Gennady, Mizrahi, Tamir, Brons, Robert
• Primary Examiner(s): McCarthy, Neil
• Assistant Examiner(s): GREEN, THEODORE
• Application Number:
  US08/648,252
• Time in Patent Office: 503 Days
• Field of Search: 210/110, 210/150, 210/151, 210/169, 210/266, 210/416.2, 210/520, 210/661, 210/807, 210/903, 210/119
• US Class Current: 210/110
• CPC Class Codes: A01K 63/045 Filters for aquaria

Abstract

Fluid treatment apparatus including a vessel having a fluid inlet port, a fluid outlet port and a deflector plate and containing a medium and an inlet having an inlet end in flow communication with the fluid inlet port and a discharge end providing an incoming flow of untreated fluid against the deflector plate for reversal thereby to an outgoing flow of fluid passing through the medium for treatment, the clearance between the discharge end and the deflector plate being selectively adjustable for controlling the flow of fluid through the vessel.

Claims

1. Fluid treatment apparatus operating with a reaction medium comprising:

(a) an elongated vessel having a first end and a second end and containing said reaction medium, said first end constituting a deflector plate, said vessel formed with a fluid inlet port and a fluid output port both disposed toward said second end; and

(b) an inlet tube having an inlet end in flow communication with said fluid inlet port and a discharge end providing an incoming flow of untreated fluid in a first direction against said deflector plate for reversal of flow thereby to an outgoing flow of fluid in a second direction opposite to said first direction passing through said reaction medium for treatment, the clearance between said discharge end and said deflector plate being selectively adjustable for controlling the flow of fluid through said vessel and maintaining the flow at a desired rate, means for externally adjusting said clearance during the continuous operation of the apparatus.

2. Apparatus according to claim 1 further comprising a rotatable flow regulator connected to said inlet tube such that rotation of said flow regulator adjusts the clearance between said discharge end and said deflector plate.

3. Apparatus according to claim 2 wherein said inlet tube is displaceably coupled to said flow regulator which maintains a fixed distance from said deflector plate during said adjustment of said clearance.

4. Apparatus according to claim 3 wherein said flow regulator is disposed intermediate said fluid inlet port and said inlet tube.

5. Apparatus according to claim 4 wherein said fluid inlet port is rotatably mounted with respect to said flow regulator.

6. Apparatus according to claim 5 wherein said vessel includes a removable lid assembly including said fluid inlet port, said fluid outlet and said flow regulator.

7. Apparatus according to claim 6 wherein said inlet tube is downward depending for providing a flow of untreated fluid against said deflector plate for reversal thereby to an outgoing upward rising flow of fluid passing through a fluidized bed filter medium.

8. Apparatus according to claim 7 further comprising an one-way valve disposed at said discharge end for preventing back suction of said reaction medium into said inlet tube on interruption of said incoming flow of untreated fluid.

9. Fluid treatment apparatus operating with a fluidized bed filter medium for treatment of a liquid comprising:

(a) an upright elongated vessel having an upper end and a lower end and containing said filter medium, said lower end constituting a deflector plate, said vessel formed with a liquid inlet port and a liquid output port both disposed toward said upper end; and

(b) an inlet tube having an inlet end in flow communication with said liquid inlet port and a discharge end providing a downward incoming flow of untreated liquid against said deflector plate for reversal of flow thereby to an upward outgoing flow of liquid passing through said filter medium for treatment, the clearance between said discharge end and said deflector plate being selectively adjustable for controlling the flow of liquid through said vessel and maintaining the flow of liquid at a desired rate, means for externally adjusting said clearance during the continuous operation of the apparatus.

10. Apparatus according to claim 9 further comprising a rotatable flow regulator connected to said inlet tube such that rotation of said flow regulator adjusts the clearance between said discharge end and said deflector plate.

11. Apparatus according to claim 10 wherein said inlet tube is displaceably coupled to said flow regulator which maintains a fixed distance from said deflector plate during said adjustment of said clearance.

12. Apparatus according to claim 11 wherein said flow regulator is disposed intermediate said liquid inlet port and said inlet tube.

13. Apparatus according to claim 12 wherein said liquid inlet port is rotatably mounted with respect to said flow regulator.

14. Apparatus according to claim 13 wherein said vessel includes a removable lid assembly including said fluid inlet port, said fluid outlet and said flow regulator.

15. Apparatus according to claim 14 further comprising an one-way valve disposed at said discharge end for preventing back suction of said medium into said inlet tube on interruption of said incoming flow of untreated liquid.