Fluid disinfection system

• US 5,471,063 A
• Filed: 01/13/1994
• Issued: 11/28/1995
• Est. Priority Date: 01/13/1994
• Status: Expired due to Fees

• Current Assignee: Trojan Technologies Incorporated (Danaher Corporation)
• Original Assignee: Trojan Technologies Incorporated (Danaher Corporation)
• Inventors: Pearcey, Richard, White, Philip T., Hayes, Stewart J.
• Primary Examiner(s): Berman, Jack I.
• Assistant Examiner(s): Beyer, James
• Application Number:
  US08/181,107
• Time in Patent Office: 684 Days
• Field of Search: 250/436, 250/455.11, 267/166, 267/166.1, 267/167, 267/180, 210/748
• US Class Current: 250/436
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: B01J 19/123 Ultraviolet light
• CPC Class Codes: C02F 1/325 Irradiation devices or lamp constructions
• CPC Class Codes: C02F 2201/3223 Single elongated lamp located on the central axis of a turbular reactor
• CPC Class Codes: C02F 2201/326 Lamp control systems
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors

Abstract

A fluid disinfection unit comprising a fluid treatment housing, an electrical supply module and electrical connection means connecting the fluid treatment housing and the electrical supply module;

the fluid treatment housing comprising a fluid inlet and a fluid outlet in communication with a reaction chamber, an ultraviolet radiation lamp disposed in the reaction chamber and having a first electrical connection receiving means at a first end thereof and a second end thereof being closed, the second end of the ultraviolet radiation lamp being received and held in place by fixture means;

the electrical supply module comprising ballast means and a second electrical connection receiving means; and

the electrical connection means comprising lamp receptacle connector means at one end thereof for removable connection to the ultraviolet radiation lamp and electrical connection receiving means for connection to the electrical supply module.

Claims

1. A fluid disinfection unit comprising (i) a fluid treatment housing, (ii) an electrical supply module, and (iii) electrical connection means connecting the fluid treatment housing and the electrical supply module;

(i) the fluid treatment housing comprising a fluid inlet and a fluid outlet in communication with a reaction chamber, an ultraviolet radiation lamp disposed in the reaction chamber and having a first electrical connection means at a first end of said lamp, said lamp being surrounded by a sleeve, an end of the sleeve distal the first end of said lamp having a closed end and being received and held in place by a spring having a first diameter less than diameter of said sleeve, and a second diameter greater than a diameter of said sleeve;

(ii) the electrical supply module comprising ballast means and a second electrical connection means; and

(iii) the electrical connection means comprising lamp connector means for removable connection to said first electrical connection means, and ballast connector means for connection to said second electrical connection means.

2. The fluid disinfection unit defined in claim 1, wherein said spring is a helical spring.

3. The fluid disinfection unit defined in claim 2, wherein said helical spring is tapered.

4. The fluid disinfection unit defined in claim 3, wherein said spring comprises a first, leading portion having a diameter slightly less than that of the reaction chamber.

5. The fluid disinfection unit defined in claim 4, wherein said spring comprises a second portion after the first, leading portion, the second portion comprising a decreasing diameter.

6. The fluid disinfection unit defined in claim 5, wherein said spring comprises a third portion after the second portion, the third portion having said second diameter.

7. The fluid disinfection unit defined in claim 6, wherein said spring comprises a fourth portion after the third portion, the fourth portion having said first diameter.

8. The fluid disinfection unit defined in claim 7, wherein said spring comprises a fifth portion after the fourth portion, the fifth portion comprising affixation means for securing the spring to the reaction chamber.

9. The fluid disinfection unit defined in claim 1, wherein said reaction chamber further comprises ultraviolet radiation sensor means.

10. The fluid disinfection unit defined in claim 1, wherein said ultraviolet radiation lamp and said lamp receptacle connector means are keyed to one another.

11. A fluid disinfection unit comprising:

a chamber having a fluid inlet, a fluid outlet, and a removable end and an opposite end;

a radiation unit disposed in said chamber and having a radiation lamp surrounded by a sleeve;

an electrical connector coupled to one end of said sleeve and disposed at said removable end of the chamber; and

a spring having a first diameter less than a diameter of said sleeve, and a second diameter greater than a diameter of said sleeve, said spring disposed at the opposite end of said chamber for receiving and cushioning a second end of said sleeve.

12. A unit according to claim 11, wherein said spring is non-removable from said chamber.

13. A unit according to claim 12, wherein said spring is coupled to the opposite end of said chamber.

14. A unit according to claim 11, wherein said spring comprises a helical spring.

15. A unit according to claim 14, wherein said second diameter is substantially the same as an inside diameter of said chamber.

16. A unit according to claim 11, wherein the opposite end of said chamber is permanently sealed.

17. A fluid disinfection unit comprising (i) a fluid treatment housing, (ii) an electrical supply module, and (iii) electrical connection means connecting the fluid treatment housing and the electrical supply module:

(i) the fluid treatment housing comprising a fluid inlet and a fluid outlet in communication with a reaction chamber, an ultraviolet radiation lamp disposed in the reaction chamber and having a first electrical connection means at a first end of said lamp, the second end of said lamp being received and held in place by a fixture means;

(ii) the electrical supply module comprising ballast means and a second electrical connection means;

(iii) the electrical connection means comprising lamp connector means for removable connection to said first electrical connection means, and ballast connector means for connection to said second electrical connection means; and

(iv) said fixture means comprising a tapered helical spring having a first portion with a diameter slightly less than that of the reaction chamber, a second portion having a decreasing diameter, and a third portion having a substantially constant diameter which is slightly larger than that of said lamp.

18. A unit according to claim 17, wherein said ultraviolet radiation lamp includes a sleeve surrounding an ultraviolet radiation bulb, an end of said sleeve distal the first end of said lamp having a closed end and being received and held in place by said fixture means.

19. A unit according to claim 17, wherein said helical spring is coupled to an end of said fluid treatment housing.

20. A unit according to claim 17, further comprising an ultraviolet radiation sensor coupled to said fluid treatment housing, for sensing radiation output by said ultraviolet radiation lamp.