ENDLESS ON-SITE PIPE MANUFACTURING
First Claim
1. A method of manufacturing a pipe of any length and any cross-section, the method comprising:
- forming at least one inner-layer around a mandrel, using sheets of desired material or using sprayed chemical compounds;
wrapping a desired number of resin-saturated fabric layers over the formed inner-layer, to complete a pipe segment;
partially removing the completed pipe segment from the mandrel;
adding, over the mandrel, a similarly formed inner-layer to the inner-layer of the partially removed pipe segment;
wrapping a desired number of resin-saturated fabric layers over the similarly formed inner-layer on the mandrel, to complete a new pipe segment; and
wherein curing of the resin-saturated fabric layers may be optionally accelerated.
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Accused Products
Abstract
Method and article of manufacture are disclosed for on-site manufacturing of any length, any shape, size, and any thickness pipe. Sheets of materials fulfilling the requirements of the inner surface of the pipe is first wrapped around a mandrel of a desired size and cross-section to form a pipe-liner. As described, the pipe-liner can also be manufactured by spraying fast-setting materials on the mandrel or injecting desired materials into a form surrounding the mandrel. Afterwards, fabrics saturated with resin are wrapped around the manufactured pipe-liner. Completed pipe section is partially pushed off the mandrel and another similar partial pipe is manufactured around the mandrel as a continuation of the previous partial pipe section. This process is repeated to manufacture a seamless pipe of any desired length. Disclosed pipes eliminate almost all weaknesses of plastic, metal, and concrete pipes and noticeably reduce costs of transportation and manufacturing.
19 Citations
20 Claims
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1. A method of manufacturing a pipe of any length and any cross-section, the method comprising:
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forming at least one inner-layer around a mandrel, using sheets of desired material or using sprayed chemical compounds; wrapping a desired number of resin-saturated fabric layers over the formed inner-layer, to complete a pipe segment; partially removing the completed pipe segment from the mandrel; adding, over the mandrel, a similarly formed inner-layer to the inner-layer of the partially removed pipe segment; wrapping a desired number of resin-saturated fabric layers over the similarly formed inner-layer on the mandrel, to complete a new pipe segment; and wherein curing of the resin-saturated fabric layers may be optionally accelerated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of manufacturing a pipe of any length, the method comprising:
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Wrapping, continuously, a desired number of resin-saturated fabric layers over a mandrel, to form a tube; moving, continuously or intermittently, the formed tube off the mandrel; and spraying the inner surface of the tube with a desired inner-liner; and wherein curing of the resin-saturated fabric layers may be optionally accelerated. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A pipe comprising:
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a first pipe segment that includes a first outer-layer and a first inner-layer, wherein the first outer-layer is formed by wrapping a layer of glue- or resin-saturated fabric around a mandrel of desired shape and size and wherein the first inner-layer is formed by wrapping a sheet of desired material or spraying a desired chemical compound over the mandrel before the first outer-layer is formed or by spraying a desired chemical compound inside the first outer-layer after the first outer-layer is formed; a second pipe segment that includes a second outer-layer and a second inner-layer, wherein the second outer-layer is formed by wrapping a layer of glue- or resin-saturated fabric around the mandrel and wherein the second inner-layer is formed by wrapping a sheet of desired material or spraying a desired chemical compound over the mandrel before the second outer-layer is formed or by spraying a desired chemical compound inside the second outer-layer after the second outer-layer is formed; and wherein the first pipe segment and the second pipe segment have been connected over the mandrel. - View Dependent Claims (18, 19, 20)
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Specification