VULCANIZING RUBBER COVERED WIRE
First Claim
1. Apparatus including a supply source of metal wire cord, an extruder for applying an unvulcanized rubber coating to said cord, a pressure chamber connected directly to said extruder, a high energy induction heating coil disposed within said pressure chamber concentrically of wire cord passing therethrough, an adjustable seal assembly forming the outlet of said chamber, means for maintaining a pressure within said chamber between about 20 and 400 pounds per square inch gauge pressure, means for advancing said coated cord through said induction heating coil and from said pressure chamber through said seal assembly, means for advancing said coated cord to a rotatable drum and guide means operably connected with said rotatable drum for positioning said coated cord on said drum in a zigzag pattern with reversals at the edges;
- said seal assembly including a compressible rubber sealing member with surfaces tapering to the periphery thereof, a first member having a surface with a conical taper matching the mating surface of the sealing member, a second member of a cup configuration in contact with said first member and being disposed over said sealing member and in contact with another tapered surface thereof, openings through said first, second and sealing members to provide a passage through said assembly, and means for adjusting the position of said second member with respect to said first member to vary the compressive forces on said sealing member and thereby change the size of the opening therethrough.
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Accused Products
Abstract
Apparatus including a supply source of metal wire cord, an extruder for applying a coating to the cord, a pressure chamber including a high frequency induction heating source, an adjustable seal assembly for the outlet of the chamber, means for withdrawing coated cord from the pressure chamber through the seal assembly, and means for collecting the coated cord in a desired configuration.
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Citations
2 Claims
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1. Apparatus including a supply source of metal wire cord, an extruder for applying an unvulcanized rubber coating to said cord, a pressure chamber connected directly to said extruder, a high energy induction heating coil disposed within said pressure chamber concentrically of wire cord passing therethrough, an adjustable seal assembly forming the outlet of said chamber, means for maintaining a pressure within said chamber between about 20 and 400 pounds per square inch gauge pressure, means for advancing said coated cord through said induction heating coil and from said pressure chamber through said seal assembly, means for advancing said coated cord to a rotatable drum and guide means operably connected with said rotatable drum for positioning said coated cord on said drum in a zigzag pattern with reversals at the edges;
- said seal assembly including a compressible rubber sealing member with surfaces tapering to the periphery thereof, a first member having a surface with a conical taper matching the mating surface of the sealing member, a second member of a cup configuration in contact with said first member and being disposed over said sealing member and in contact with another tapered surface thereof, openings through said first, second and sealing members to provide a passage through said assembly, and means for adjusting the position of said second member with respect to said first member to vary the compressive forces on said sealing member and thereby change the size of the opening therethrough.
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2. Apparatus according to claim 1 wherein the rubber sealing member is silicone rubber.
Specification
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- Resources
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Current AssigneeHerbert R. King
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Original AssigneeHerbert R. King
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InventorsKing, Herbert R.
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Primary Examiner(s)Kee Chi, James
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Application NumberUS05/046,416Time in Patent Office841 DaysField of Search118/620,405,DIG.18,DIG.22 156/500,117,397 277/110,115US Class Current118/620CPC Class CodesB05D 1/265 Extrusion coatingsB05D 2202/00 Metallic substrateB05D 3/0281 with induction heatingB05D 7/20 to wires for insulating ele...B29C 48/00 Extrusion moulding, i.e. ex...B29C 48/05 Filamentary, e.g. strandsB29K 2021/00 Use of unspecified rubbers ...
