Grid plate
First Claim
1. A grid plate comprising a base and vertical side walls integral to the base which form chambers open to the top, the bottom of each chamber being provided with a drainage hole and the base having projections on a plate rim which protrude beyond the plate rim and grip the base area of an adjacent grid plate, the plate rim of the grid plate intersecting the rim-bordering side walls of at least every second rim-bordering chamber to form intersected laterally open chambers, the intersected laterally open chambers being completed by rim-bordering side walls of adjacent grid plates to additional laterally closed chambers, the rim-bordering side walls of adjacent grid plates being in contact only along vertical edges of the side walls intersected by the plate rim.
1 Assignment
0 Petitions
Accused Products
Abstract
A grid plate is comprised of a base and vertical one piece side walls which form chambers open to the top, the bottom of each chamber being provided with a drainage hole and the bottom having projections on a plate rim which protrude beyond the rim of the grid plate and grip the bottom area of an adjacent grid plate, the plate rim of the grid plate intersecting at least every second rim-bordering chamber, the chambers forming additional chambers with side walls of adjacent grid plates and the side walls of a pair of grid plates only coming into contact along their vertical edges.
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Citations
17 Claims
- 1. A grid plate comprising a base and vertical side walls integral to the base which form chambers open to the top, the bottom of each chamber being provided with a drainage hole and the base having projections on a plate rim which protrude beyond the plate rim and grip the base area of an adjacent grid plate, the plate rim of the grid plate intersecting the rim-bordering side walls of at least every second rim-bordering chamber to form intersected laterally open chambers, the intersected laterally open chambers being completed by rim-bordering side walls of adjacent grid plates to additional laterally closed chambers, the rim-bordering side walls of adjacent grid plates being in contact only along vertical edges of the side walls intersected by the plate rim.
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10. A grid plate as defined in claim 19, in which the projections are located on alternate partial chambers.
Specification