Combined sewer overflow - Patent 1627970

(19)

(11)

EP 1 627 970 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	03.01.2007 Bulletin 2007/01

(43)	Date of publication A2:
	22.02.2006 Bulletin 2006/08

(21)	Application number: 05254718.9

(22)	Date of filing: 28.07.2005

(51)

International Patent Classification (IPC):

E03F 5/12^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK YU

(30)

Priority:

30.07.2004 GB 0417065

(71)	Applicant: Asset International Ltd
	South Wales, NP19 4XH (GB)

(72)	Inventors:
	Wright, Simon c/o Asset International Ltd. Newport, South Wales NP19 4XH (GB) Holvey, Alun c/o Asset International Ltd. Newport, South Wales NP19 4XH (GB)

(74)	Representative: Hackett, Sean James
	Marks & Clerk, 5th Floor, Alpha Tower, Suffolk Street Queensway Birmingham B1 1TT Birmingham B1 1TT (GB)

(54)	Combined sewer overflow

(57) A combined sewer overflow comprises a chamber 1 formed from a length of plastics pipe for ease of off-site manufacture. The chamber has storm and foul water inlet and outlet ports 4, 5 for connection to a drainage system. A barrier 12 and weir 17 is provided to divide the chamber into a normal flow passage 13 and an overflow passage 14. A filter 16 is provided in relation to the barrier 12 and weir 17 so that when the level of sewerage within the chamber rises above the filter, at least some solids are prevented from reaching an overflow 6.

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