Former for use in the manufacture of fiberglass articles

Details Former for use in the manufacture of fiberglass articles Former for use in the manufacture of fiberglass articles

1993-09-13

1994-12-20

Watkins, III, William P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428137, 428167, 428181, 428156, 428174, 249 37, 249113, 52381, 52380, 52382, 52383, B32B 306, B32B 324

Patent

active

053744667

ABSTRACT:
A former for supporting a layer of settable plastics material while it sets into hollow reinforcing ribs bonded to a laid up article of fibre reinforced plastics material during manufacture of said article, comprising a foraminous sheet (5) wherein the region of the sheet between each pair of neighbouring holes (6) is elevated above the plane in which the rims of the holes are disposed by means of one or more upstanding formations (7) joined to one another by a flexible web (10). The upstanding formations have rigidifying patterns (11) formed thereon. An article produced using the former is also disclosed.

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patent: 4695033 (1987-09-01), Imaeda et al.
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patent: 4923733 (1990-05-01), Herbst
Supplementary European Search Report for EP 90 906063.
Patent Abstract of Japan vol. 8, No. 96, of Appl. No. 57-121033.

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