Coating processes – Spraying – With programmed control or using mechanized nozzle or...
Reexamination Certificate
2011-01-11
2011-01-11
Koch, III, George R (Department: 1745)
Coating processes
Spraying
With programmed control or using mechanized nozzle or...
C118S677000, C118S679000, C118S682000, C118S684000, C118S692000
Reexamination Certificate
active
07867576
ABSTRACT:
A method for monitoring the quality of a pattern of fluid beads applied to a moving substrate measures time delays between the passage of a reference point on a substrate element and leading and trailing edges of a bead, the quality of which is to be measured. A time delay ratio is generated, and compared to a reference ratio. The result of the comparison is indicative of variations in the quality of the measured bead. The invention has utility in a variety of industries, including industries in which adhesive beads are applied to a substrate, such as the envelope and box industries. An apparatus in accordance with the invention may conveniently utilize non-contact sensors to monitor the passage of the substrate and beads, and further may advantageously monitor the leading edge of the substrate and leading and trailing edges of the beads.
REFERENCES:
patent: 6770142 (2004-08-01), Estelle
patent: 2006/0096530 (2006-05-01), Klein
Nordson Corporation, “Seal Sentry Series 10 Bead Detection System”, 6 pages, Jul. 2003.
ITW Dyna Tec, “DY 2008 Pattern Controller”, 2 pages, date unknown.
Nordson Corporation, “Seal Sentry Series 10 Bead Detection System”, 2 pages, Jan. 2001.
Levin Leonard
Levin Sophia
Koch, III George R
Ladas & Parry LLP
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