Patents Assigned to Delta Plastics of the South
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Patent number: 11746934Abstract: Woven irrigation tubing comprising a woven, extrusion coated & laminated tube formed of a high density polyethylene (HDPE) outer layer, a low density polyethylene (LDPE) middle layer and a linear low density polyethylene (LLDPE) inner layer. The finished tubing is treated for ultraviolet resistance. The tubing is tied off at a distal end with a proximal end connected to a pressurized irrigation source. Watering holes are created in the tubing at spaced intervals and the resulting water streams are directed into parallel plowed furrows. The tubing is completely recyclable. The tubing is formed by manufacturing tape for the woven outer tubing cover, stretching the tape along its length to strengthen it, weaving the outer layer from the tape, flattening the woven outer layer, extrusion coating each surface of the outer layer with LDPE, laminating the LLDPE inner layer to the LDPE, reversing and winding the tubing for storage and distribution.Type: GrantFiled: November 28, 2021Date of Patent: September 5, 2023Assignee: Delta Plastics of the SouthInventor: Michael Mitchell
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Publication number: 20220372674Abstract: Woven irrigation tubing comprises a woven, extrusion coated & laminated tube formed of a high density polyethylene (HDPE) outer layer, a low density polyethylene (LDPE) middle layer and a linear low density polyethylene (LLDPE) inner layer. The finished tubing is treated for ultraviolet resistance. The tubing is tied off at a distal end with a proximal end connected to a pressurized irrigation source. Watering holes are created in the tubing at spaced intervals and the resulting water streams are directed into parallel plowed furrows. The tubing is completely recyclable. The tubing is formed by manufacturing tape for the woven outer tubing cover, stretching the tape along its length to strengthen it, weaving the outer layer from the tape, flattening the woven outer layer, extrusion coating each surface of the outer layer with LDPE, laminating the LLDPE inner layer to the LDPE, reversing and winding the tubing for storage and distribution.Type: ApplicationFiled: August 8, 2022Publication date: November 24, 2022Applicant: Delta Plastics of the SouthInventor: Michael Mitchell
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Patent number: 11441706Abstract: Woven irrigation tubing comprising a woven, extrusion coated & laminated tube formed of a high density polyethylene (HDPE) outer layer, a low density polyethylene (LDPE) middle layer and a linear low density polyethylene (LLDPE) inner layer. The finished tubing is treated for ultraviolet resistance. The tubing is tied off at a distal end with a proximal end connected to a pressurized irrigation source. Watering holes are created in the tubing at spaced intervals and the resulting water streams are directed into parallel plowed furrows. The tubing is completely recyclable. The tubing is formed by manufacturing tape for the woven outer tubing cover, stretching the tape along its length to strengthen it, weaving the outer layer from the tape, flattening the woven outer layer, extrusion coating each surface of the outer layer with LDPE, laminating the LLDPE inner layer to the LDPE, reversing and winding the tubing for storage and distribution.Type: GrantFiled: November 28, 2021Date of Patent: September 13, 2022Assignee: Delta Plastics of the SouthInventor: Michael Mitchell
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Publication number: 20220080685Abstract: Woven irrigation tubing comprising a woven, extrusion coated & laminated tube formed of a high density polyethylene (HDPE) outer layer, a low density polyethylene (LDPE) middle layer and a linear low density polyethylene (LLDPE) inner layer. The finished tubing is treated for ultraviolet resistance. The tubing is tied off at a distal end with a proximal end connected to a pressurized irrigation source. Watering holes are created in the tubing at spaced intervals and the resulting water streams are directed into parallel plowed furrows. The tubing is completely recyclable. The tubing is formed by manufacturing tape for the woven outer tubing cover, stretching the tape along its length to strengthen it, weaving the outer layer from the tape, flattening the woven outer layer, extrusion coating each surface of the outer layer with LDPE, laminating the LLDPE inner layer to the LDPE, reversing and winding the tubing for storage and distribution.Type: ApplicationFiled: November 28, 2021Publication date: March 17, 2022Applicant: Delta Plastics of the SouthInventor: Michael Mitchell
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Publication number: 20220082187Abstract: Woven irrigation tubing comprising a woven, extrusion coated & laminated tube formed of a high density polyethylene (HDPE) outer layer, a low density polyethylene (LDPE) middle layer and a linear low density polyethylene (LLDPE) inner layer. The finished tubing is treated for ultraviolet resistance. The tubing is tied off at a distal end with a proximal end connected to a pressurized irrigation source. Watering holes are created in the tubing at spaced intervals and the resulting water streams are directed into parallel plowed furrows. The tubing is completely recyclable. The tubing is formed by manufacturing tape for the woven outer tubing cover, stretching the tape along its length to strengthen it, weaving the outer layer from the tape, flattening the woven outer layer, extrusion coating each surface of the outer layer with LDPE, laminating the LLDPE inner layer to the LDPE, reversing and winding the tubing for storage and distribution.Type: ApplicationFiled: November 28, 2021Publication date: March 17, 2022Applicant: Delta Plastics of the SouthInventor: Michael Mitchell
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Patent number: 5853013Abstract: A pre-wash process and apparatus for recycling polymer tubing contaminated with large amounts of organic matter, soil, and so forth. The pre-wash process includes the steps of sizing the contaminated polymer tubing into small pieces, conveying the polymer tubing on a first conveyor into a rotating wash trommel, washing the polymer tubing in the rotating wash trommel, conveying the polymer tubing on a second conveyor through a pre-rinse stage and then into a rotating rinse trommel, rinsing the polymer tubing in the rinse trommel, discharging the polymer tubing from the rinse trommel into a float/sink tank, passing the polymer tubing through the float/sink tank to a third conveyor, and conveying the polymer tubing into a suitable container for delivery to a final wash and pelletizing process. The wash trommel and rinse trommel each comprises a rotating cylinder with internal helical flighting that causes intense rolling and agitation of the polymer tubing.Type: GrantFiled: March 4, 1997Date of Patent: December 29, 1998Assignee: Delta Plastics of the South LLCInventors: Lon D. Busick, Billy Marlow