Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Reexamination Certificate
2005-07-26
2005-07-26
Loney, Donald J. (Department: 1772)
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
C264S257000, C264S259000, C428S172000, C428S493000
Reexamination Certificate
active
06921502
ABSTRACT:
At least one embodiment of this invention relates to a cushioned dust control mat article wherein the mat comprises at least two distinct layers of rubber, one comprising foam rubber, the other comprising solid rubber. The solid rubber layer is present over the foam rubber layer on the side of the mat in which at least one integrated rubber protrusion is present to provide cushioning characteristics. The solid rubber layer acts as a cap or barrier for the foam rubber layer, particularly over the integrated protrusion or protrusions, in order to provide a mat which is resilient, will not easily degrade in its modulus strength after appreciable use and/or washing within industrial cleaning processes, and will not exhibit appreciable cracking or breaking, particularly within the integrated protrusion(s), after standard use for pedestrian traffic. A method of producing such an inventive cushioned floor mat article is also provided.
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Webster's II Dictionary, 1984, p. 836.
Burke III William O.
Kerr Robert C.
Kobayashi Seiin
Nord Thomas D.
Streeton Amy K.
Alexander Daniel R.
Loney Donald J.
Milliken & Company
Moyer Terry T.
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