Coating apparatus – Projection or spray type – With projector heating – cleaning or conditioning
Reexamination Certificate
2007-01-09
2007-01-09
Edwards, Laura (Department: 1734)
Coating apparatus
Projection or spray type
With projector heating, cleaning or conditioning
C239S114000, C239S123000, C222S148000, C425S229000
Reexamination Certificate
active
10308840
ABSTRACT:
The present invention relates to a system and method suitable for automatic cleaning of a coating or extrusion head of a coating apparatus. The invention includes a scrubbing station wherein a combination of physical contact and strong solvent solution combine to remove coating fluid from the exterior of an extrusion head. A second cleaning station, preferably a rinsing station then further cleans the head of coating fluid and removes solvent used at a first cleaning station. The solvent used at the rinsing station is preferably self-drying thereby obviating the need for any further cleaning action. The invention also provides for the ability to prime the coating bead at the extrusion head so as to have a fully formed bead ready before the head begins coating a substrate, thereby providing an even coating across said substrate. The priming operation preferably comprises holding the head steady over a rotating priming roller while extruding fluid preferably at a constant volumetric flow rate. The extrusion head is removed from the priming station when the coating bead is properly formed, and the extruded coating material is dissolved in a solvent bath at the priming station. The priming operation may also be performed at either of the cleaning stations.
REFERENCES:
patent: 3146950 (1964-09-01), Lancaster
patent: 3405682 (1968-10-01), King et al.
patent: 4052305 (1977-10-01), Arvanitakis
patent: 4567494 (1986-01-01), Taylor
patent: 4860883 (1989-08-01), Knaul et al.
patent: 4895603 (1990-01-01), Semp et al.
patent: 5002008 (1991-03-01), Ushijima et al.
patent: 5136972 (1992-08-01), Naka et al.
patent: 5147028 (1992-09-01), Raggi
patent: 5213696 (1993-05-01), Patrone et al.
patent: 5367326 (1994-11-01), Pond et al.
patent: 5432539 (1995-07-01), Anderson
patent: 5548310 (1996-08-01), Binnert et al.
patent: 5574485 (1996-11-01), Anderson et al.
patent: 5766356 (1998-06-01), Kurimoto
patent: 5793390 (1998-08-01), Claflin et al.
patent: 5849084 (1998-12-01), Hayes et al.
patent: 5853812 (1998-12-01), Kawasaki et al.
patent: 6010570 (2000-01-01), Motoda et al.
patent: 6090216 (2000-07-01), Yamaguchi et al.
patent: 6145953 (2000-11-01), Medin
patent: 94703 (2000-04-01), None
Gibson Gregory M.
Hawes John E.
Kabbani Samer M.
Snodgrass Ocie T.
Edwards Laura
Ehrlich Henry L.
FAStar, Ltd.
Winstead Sechrest & Minick P.C.
LandOfFree
System and method for cleaning and priming an extrusion head does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for cleaning and priming an extrusion head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for cleaning and priming an extrusion head will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3764050