Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2005-06-07
2005-06-07
Aftergut, Jeff H. (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S218000, C493S264000, C493S267000, C493S276000, C493S331000
Reexamination Certificate
active
06902639
ABSTRACT:
A solvent-based adhesive is used to form a continuous, adhesively bonded and welded seam at the longitudinal edge portions of plastic film which have been overlapped. First, a bead of the adhesive is disposed on the edge portion of a web of film passing over an applicator roll. Next, as the film moves between the applicator roll and nip rolls, the adhesive dissolves a portion of the film to form a longitudinal channel having a generally semicircular cross-section. Then the edge portion is overlapped onto the other edge portion with the bead of adhesive between them. Finally the overlapped edge portions are squeezed between the nip rolls, so that the adhesive exudes laterally outward from the groove and is distributed smoothly between the overlapped edge portions, until the adhesive and dissolved film form a uniform band having a rounded hat-shaped cross-sectional profile.
REFERENCES:
patent: 2307280 (1943-01-01), Krasno
patent: 2679195 (1954-05-01), Whytlaw
patent: 2914108 (1959-11-01), Coakley
patent: 2926723 (1960-03-01), Clark
patent: 3005742 (1961-10-01), Kennedy, Jr.
patent: 3597292 (1971-08-01), Takeda
patent: 4035211 (1977-07-01), Bill et al.
patent: 4276333 (1981-06-01), Cobean
patent: 4477304 (1984-10-01), Westermann
patent: 4617683 (1986-10-01), Christoff
patent: 4708705 (1987-11-01), Aubry et al.
patent: 5507872 (1996-04-01), Antenucci et al.
patent: 5759337 (1998-06-01), Fujio et al.
patent: 6312550 (2001-11-01), Tiburtius et al.
EFD Brochure, “When you specify boringly reliable fluid dispense valve systems, you say “Good-bye” to costly downtime.” pp. 1-4, 12-13, 24-25, 37-40, Printed in U.S.A. ©2000 EFD Inc.
DeFoggi David Jonathan
Perelman Alexander
Aftergut Jeff H.
Beiriger Tracey D
Eckert Seamans Cherin & Mellott
Goff John L.
Reynolds Metals Company
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