Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2005-03-15
2005-03-15
Haran, John T. (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S157000, C156S304600
Reexamination Certificate
active
06866732
ABSTRACT:
A method and apparatus for continuously seaming cured EPDM membrane to form a composite sheet of predetermined width and indefinite length. The method includes the steps of providing at least two rolls of cured EPDM membrane having longitudinal marginal edges and feeding the cured EPDM membrane from the at least two rolls in a first direction. The longitudinal marginal edges of the cured EPDM membranes are positioned in an overlapping relationship as the cured EPDM membranes are fed in the first direction and then the overlapping longitudinal marginal edges are continuously seamed to form a composite sheet of indefinite length.
REFERENCES:
patent: 4343667 (1982-08-01), Hollis
patent: 4931126 (1990-06-01), McCarville et al.
patent: 5545685 (1996-08-01), Davis et al.
Hubbard Michael J.
Kelly Walter J.
Verrocchi Anthony
Weinert Raymond J.
Haran John T.
Meenan Larry R.
OMNOVA Solutions Inc.
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