Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1990-06-13
1992-01-14
Ryan, Patrick J.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428 357, 428 3691, 428 73, 428116, 428284, 428367, 428368, 428408, 156172, 156197, 156215, 156292, 138109, 138148, 138153, 138172, 138DIG7, F16L 300
Patent
active
050809431
ABSTRACT:
Composite tube, which is a sandwich structure, comprising a plurality of fiber strata, each made of epoxy-saturated fibers, and at least one layer of a honeycomb material sandwiched between. The fiber strata and the honeycomb layers are in alternating sequence. Each fiber stratum may include a fiber web surrounded by a fiber cable, which consists essentially of a large number of twisted fibers arranged in the axial direction and parallel to each other. The composite tube of this invention is very light in weight, yet has tensile strength and other mechanical properties corresponding to those of conventional tubes made of steel. The tube of this invention is especially useful as a guide roller or an expansion shaft.
REFERENCES:
patent: 3145000 (1964-08-01), Mackie
patent: 3490983 (1970-01-01), Lee
patent: 3853600 (1974-12-01), Hou
patent: 4773656 (1988-09-01), Chlupsa
Modern Plastics Encyclopedia 1984-1985, pp. 125 and 126, Pub. by McGraw-Hill Inc., NY, 1984.
Chlupsa Otto
Ryan Patrick J.
Vetter Otto
Weddington J.
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