System for manufacturing an irrigation pipe and a device and method for detecting holes in the wall of an irrigation pipe
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United States of America Patent
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May 5, 2015
Grant Date -
Jun 5, 2014
app pub date -
May 24, 2012
filing date -
May 26, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A system for manufacturing an irrigation pipe comprises an extrusion unit, a calibrator unit, a cooling unit for cooling the irrigation pipe in a cooling liquid, and a traction unit for drawing the irrigation pipe in the cooling unit. The cooling unit comprises a device for detecting holes in the wall of the irrigation pipe and arranged for being immersed in the cooling liquid. The device for detecting holes comprises at least one optical transmitter and at least one optical receiver which define an optical barrier. The device is arranged so that the holes in the irrigation pipe located below the device produce gas bubbles which modify the optical barrier.
First Claim
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International Classification(s)
- F16L:PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR ....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- G01M:TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR S....
- B29D:PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FRO....
- F17D:PIPE-LINE SYSTEMS; PIPE-LINES
- A01G:HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, ....
- B21C:MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PR....
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