Composite plate, especially for raised floors

Details Composite plate, especially for raised floors Composite plate, especially for raised floors

1988-07-25

1991-10-15

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Edge feature

428332, 428138, 428179, 428213, 428218, 521266, F32B 2302

Patent

active

050573551

ABSTRACT:
With the composite plates for raised floors which are supported at their four corners and consist of a shell with open top and manufactured of tension-resistant material as well as a filling of pressure-resistant material, for instance anhydrite, when the plate is under stress there is a higher deflection at the plate border than in the middle of the plate, which is undesirable. In order to substantially equalize the bearing strength of composite plates of the above structural design in the border and the middle of the plate and to assure such plates against rupture at the border, a reinforcement which is practically plate-high is provided on the side wall of the shell, which is connected with the bottom plate of the shell. In addition or alternatively thereto the density and strength of the filling in the border area of the composite plate could also be increased at least twofold as compared with the rest of the area extending toward the middle of the plate.

REFERENCES:
patent: 4640854 (1987-02-01), Radtke
patent: 4833845 (1989-05-01), Bruckner

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