Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Reexamination Certificate
2007-01-09
2007-01-09
McNeil, Jennifer C. (Department: 1772)
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
C428S034100, C428S034400, C428S034500, C428S034600, C428S034700, C428S035700, C428S035800, C428S036300, C428S036910
Reexamination Certificate
active
09890860
ABSTRACT:
An elongate tubular heat transfer element having a longitudinal tube axis that runs through the hollow interior of the heat transfer element. The heat transfer element includes a wall of monolithic construction having an outer surface and an inner surface. The wall is formed from a composite material including a matrix and rovings embedded in the matrix. The composite material is in contact with the hollow interior such that the inner surface determines a boundary of the hollow interior which extends longitudinally along the axis of the heat transfer element. The matrix is of a fluoropolymer having embedded therein rovings of boron-free chemically resistant glass fibres. The rovings include from about 20% to about 60% by volume based upon the volume of the composite material, rovings that extend longitudinally in a lengthwise direction parallel to the axis of the heat transfer element and rovings that extend spirally around the axis.
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Merriam-Webster Online Dictionary, entry for “monolithic” and “monolith”.
Patent Abstracts of Japan, vol. 012, No. 471, Dec. 9, 1988 and JP 63 194195, Aug. 11, 1986.
Dodd Keith Herbert
Price Christopher Barry
Welton Nicholas Jason
Aughenbaugh Walter B.
McNeil Jennifer C.
Nixon & Vanderhye P.C.
Security Composites Limited
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