US Patent 8091705 Diamond polishing pad caddy

A caddy for storing diamond polishing pads used by grinding machines holds multiple containers in a rack in a case. Each container is independently removable from the rack and case and stores a complete set of stacked pads so that sets of used pads are always sorted and accessible according to both their grit and wear characteristics. The case, rack and containers are configured with respect to the sets of pads and to each other so as to minimize their relative three dimensional motion during transport of the caddy. The case, rack and body of the containers are preferably made of cardboard so that many sets of pads can be stored and transported in one or more lightweight and inexpensive caddies.