Hollow plate made of synthetic resin

Details Hollow plate made of synthetic resin Hollow plate made of synthetic resin

1987-09-23

1988-10-18

Song, Robert R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

296 3716, 296901, 428167, 428178, 52792, 52508, B05D 312

Patent

active

047787090

ABSTRACT:
A hollow plate made of synthethic resin including hollow portions, and contacted portions intermittently formed by bending the lower face of each of the hollow portions inward and then contacting it with the underside of an upper face, wherein the lower face at each of the contacted portions is tapered to become thicker and thicker toward its center.

REFERENCES:
patent: 3222237 (1965-12-01), McKelvy
patent: 3935357 (1975-01-01), Padovani
patent: 3935358 (1976-01-01), Wyeth et al.
patent: 4167598 (1979-09-01), Logan et al.
patent: 4670324 (1987-06-01), Sato et al.

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