Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2007-04-24
2010-11-16
Wyrozebski, Kat (Department: 1791)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S110100, C156S122000, C156S131000, C156S134000, C156S136000, C156S304100, C156S304300, C156S304500, C156S502000, C156S504000
Reexamination Certificate
active
07833375
ABSTRACT:
A method and an apparatus for butt-jointing edges of an elastic material sheet is disclosed. The elastic material sheet is supported such that the two edges to be butt-jointed are oppositely opposed. By moving a pair of counterrotating conical surfaces along the edges, the surfaces of the edges portions are drawn toward the center between the two edges so that the edges are butt-jointed. Between the conical surfaces, a small space is provided so as to form a small rib-like protrusion along the butt-joint. Then, the small rib-like protrusion of the elastic material is pressed down to flatten. Therefore, at the butt-joint interface, the elastic material irregularly interfuses to increase the strength of the butt-joint.
REFERENCES:
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patent: 2003-71951 (2003-03-01), None
Sakamoto Masayuki
Tanaka Gaku
Yarimizu Kazuaki
Birch & Stewart Kolasch & Birch, LLP
Rivera Joshel
Sumitomo Rubber Industries Ltd.
Wyrozebski Kat
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