Structural cores and their fabrication

Details Structural cores and their fabrication Structural cores and their fabrication

1979-06-14

1980-12-23

Ball, Michael W.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

52727, 52731, 52DIG10, 156172, 156425, 156433, 428377, 428398, E04C 330, B65H 8100

Patent

active

042411173

ABSTRACT:
Structural cores in the form of open-ended polyhedrons joined together al common edges or sides are generating high industrial interest because of the great strengths they possess relative to their weights. A structural core medium of interwoven fibrous filaments coated with plastic is highly satisfactory, but it has the disadvantage that it is very difficult, if not heretofore impossible, to produce in other than planar, sandwich or cylindrical form. A jig for the fabrication of such cores has not come into existance. This invention provides a jig which makes possible the fabrication of such polyhedral structural cores.

REFERENCES:
patent: 3501880 (1970-03-01), Bosch
patent: 3551237 (1970-12-01), Cox et al.
patent: 3579422 (1971-05-01), Minick et al.
patent: 3615883 (1971-10-01), Palfreyman et al.
patent: 3642566 (1972-02-01), Figge
patent: 3645833 (1972-02-01), Figge
patent: 3657059 (1972-04-01), Figge
patent: 3689345 (1972-09-01), Fiss et al.
patent: 3772126 (1973-11-01), Myers
patent: 3813273 (1974-05-01), Loustau

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