DEVICE FOR CURING COATINGS OR PLASTIC LINERS ON INTERNAL WALL OF ELONGATED HOLLOW SPACES
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United States of America Patent
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Issued Date -
Jun 26, 2014
app pub date -
Jul 4, 2012
filing date -
Aug 4, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A known device for curing of coatings or plastic liners on the internal wall of elongated hollow spaces includes a UV lamp having a bulb for emission of optical radiation. Based on this known device, it is proposed to provide a device for the curing of coatings or plastic liners on the internal wall of elongated hollow spaces that has a long service life and has a reduced attendant risk of damage to health and materials. The proposed device has an optical filter element to reduce the emission of an ultraviolet fraction of the optical radiation. The optical filter element has a spectral transmission of at least 80% cm−1in a wavelength range of 400 nm to 450 nm, and has an edge wavelength in the range of 350 nm to 380 nm.
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