Heat transfer element

Details Heat transfer element Heat transfer element

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.

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