Filtration system and mount for beverage dispensers and automatic beverage brewing machines

• US 5,651,887 A
• Filed: 07/28/1995
• Issued: 07/29/1997
• Est. Priority Date: 02/14/1990
• Status: Expired due to Fees

• Current Assignee: Iraco Filtration Systems, Inc.
• Original Assignee: Iraco Filtration Systems, Inc.
• Inventors: McQueen, Al, Posner, Mark A.
• Primary Examiner(s): Walker, W. L.
• Application Number:
  US08/508,752
• Time in Patent Office: 732 Days
• Field of Search: 210/232, 210/341, 210/264, 210/277, 210/282, 210/284, 210/340
• US Class Current: 210/232
• CPC Class Codes: B01D 35/147 Bypass or safety valves
• CPC Class Codes: B01D 35/153 Anti-leakage or anti-return valves
• CPC Class Codes: B01D 35/303 the housings being modular, e.g. standardised
• CPC Class Codes: B01D 65/00 Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
• CPC Class Codes: C02F 2201/006 Cartridges

Abstract

A filtration system having an in-line filter cartridge with the inlet at one end of the filter cartridge and the outlet at the opposite end of the cartridge. The filter cartridge is connected to the cartridge mounting on the fluid conduits via quick-disconnect couplers with built-in automatic water shutoff capability which enables the filter cartridge to be installed and removed in a horizontal movement. A recirculating bypass is provided in the system which includes a pair of bypass branch lines to recirculate the fluid and prevent trapped stagnant water in the bypass lines. In a shown preferred usage, the filtration system utilizes a filtration cartridge and mount to allow filter cartridges to be easily mounted upon and removed from automatic beverage dispensers.

Claims

1. A fluid treatment cartridge system, comprising:

a cartridge for through flow treatment of fluid, the cartridge having an inlet fluid coupling at one end of the cartridge and an outlet fluid coupling at an opposite end of the cartridge, the inlet and outlet couplings providing detachable fluid access to separate fluid conduits of a fluid utilization system, wherein the cartridge'"'"'s in-line orientation is in a plane of installation such that the cartridge can be installed and removed with motion substantially perpendicular to the plane of installation.

2. The cartridge system of claim 1, wherein the inlet and outlet couplings are quick-disconnect couplers.

3. The cartridge system of claim 1, wherein the couplers have a built-in automatic fluid shutoff.

4. The cartridge system of claim 1, wherein the fluid passing the inlet fluid coupling is evenly disbursed throughout the cartridge'"'"'s cross-sectional area for through flow treatment.

5. The cartridge system of claim 1, wherein the cartridge provides the only fluid access between the separate fluid conduits.

6. The cartridge system of claim 1, wherein the inlet and outlet fluid couplings are symmetrically identical.

7. The cartridge system of claim 1, wherein the couplings are keyed couplers.

8. The cartridge system of claim 1, wherein the cartridge may be removed without eliminating fluid flow in the separate fluid conduits.

9. The cartridge system of claim 1, wherein a plurality of cartridges may be installed in parallel to increase the fluid treatment capacity and speed.

10. The cartridge system of claim 9, wherein the cartridges may be separately removed and replaced without eliminating through flow fluid treatment.