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A cooling system for cooling sleeves (2) fixed to a carrier plate (1), by means of a fluid which is passed from a fluid inlet (15) to a fluid outlet (22) by way of fluid conduits (7, 14, 10, 11, 21) supported by means of the carrier plate (1). The fluid conduits (7, 14, 10, 11, 21) include main supply conduits (7) and supply conduits (10, 11) which extend approximately transversely with respect to each other. The supply conduits extend in a mutually parallel relationship and are arranged in pairs in the carrier plate (1) and are connected to a row of sleeves (2) by way of intake (16) and discharge conduits (17). The row of sleeves (2) is so disposed between the supply conduits (10, 11) of a pair such that each sleeve (2) is connected to both supply conduits (10, 11), and fluid communication is interrupted (plug 24) in at least the one supply conduit (10) of the pair substantially at the middle of its longitudinal extent (l).

Titel:	Cooling system for sleeves that are fixed to a carrier plate
Autor/in / Beteiligte Person:	Lausenhammer, Manfred ; Thömmes, Helmut
Link:	View record in USPTO Patent Grants (Volltext)
Veröffentlichung:	2007
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Grants Sprachen: English Patent Number: 7,306,452 Publication Date: December 11, 2007 Appl. No: 10/506706 Application Filed: February 12, 2003 Assignees: MHT Mold & Hotrunner Technology AG (Hochheim, DE) Claim: 1. A cooling system for cooling sleeves (2) fixed to a carrier plate (1), by means of a fluid which is passed from a fluid inlet (15) to a fluid outlet (22) by way of fluid conduits (7 , 14 , 10 , 11 , 21) supported by means of the carrier plate (1), wherein the fluid conduits (7 , 14 , 10 , 11 , 21) include main supply conduits (7) and supply conduits (10 , 11) which extend approximately transversely with respect to each other, the supply conduits extending in mutually parallel relationship and being arranged in pairs in the carrier plate (1) and being connected to a row of sleeves (2) by way of intake (16) and discharge conduits (17), wherein the row of sleeves (2) is so disposed between the supply conduits (10 , 11) of a pair such that each sleeve (2) is connected to both supply conduits (10 , 11), wherein fluid communication is interrupted by a plug (24) in at least the one supply conduit (10) of the pair substantially at the middle of its longitudinal extent (l). Claim: 2. A cooling system according to claim 1 wherein in addition to the first interruption by a plug (25) in the one supply conduit (11) of the pair fluid communication in the other supply conduit (10) of the pair is also interrupted at two locations by plugs (24 a , 24 b) which are each respectively in approximately opposite relationship to the centre of the longitudinal extent of the remaining conduits (R 1 , R 2). Claim: 3. A cooling system according to claim 1 wherein fluid communication is interrupted by a plug (24). Claim: 4. A cooling system according to claim 1 wherein the pairs of the supply conduits (10 , 11) extend over almost an entire width (B) of the carrier plate (1) and a respective supply conduit (10 , 11) of a pair is in fluid communication with a respective main supply conduit (7) disposed in a distributor (4) beside the carrier plate (1). Claim: 5. A cooling system according to claim 2 wherein fluid communication is interrupted by a plug (24). Claim: 6. A cooling system according to claim 2 wherein the pairs of the supply conduits (10 , 11) extend over almost an entire width (B) of the carrier plate (1) and a respective supply conduit (10 , 11) of a pair is in fluid communication with a respective main supply conduit (7) disposed in a distributor (4) beside the carrier plate (1). Claim: 7. A cooling system according to claim 4 wherein the pairs of the supply conduits (10 , 11) extend over almost an entire width (B) of the carrier plate (1) and a respective supply conduit (10 , 11) of a pair is in fluid communication with a respective main supply conduit (7) disposed in a distributor (4) beside the carrier plate (1). Current U.S. Class: 425/547 Patent References Cited: 5725891 March 1998 Reid, Jr. ; 0718084 June 1996 ; 0283644 October 1996 ; 0937566 February 2003 Assistant Examiner: Chaet, Marissa W Primary Examiner: Davis, Robert B. Attorney, Agent or Firm: Dunn, Michael L.

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Cooling system for sleeves that are fixed to a carrier plate