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Ameritech Holding Corporation

Ameritech Holdings Corporation

Perlucid Corporation

Guido Greco

Barry E Scheetz

Vincent Pernice

William D Rizzardi

Systems and methods of making and using fine particle materials in pigment blends and for using the aforementioned pigment blends in paint, coating, or coloring compositions are provided. This invention further provides systems and methods of enhancing the visual appearance of a variety of substrates by introducing a paint, coating, or coloring composition to the substrate. The fine particle materials of the present invention have a substantially random geometric shape, a particle size less than about 100 microns, and help provide both functional and visual enhancing properties to compositions and substrates containing these fine particle materials.

Systems and methods for producing and using fine particle materials

A locking grate for a floor sink includes a screen member having holes dimensioned to allow the passage of liquid but prevent the passage of solid waste and a mounting hole, a threaded member dimensioned to extend through the mounting hole, and a locking member which is adapted to be engaged by the threaded member. According to a presently preferred embodiment, the threaded member is a screw having a non-standard or atypical head which requires a non-standard or unusual screw driver. The locking member includes a tube which is orthogonally engaged by the screw and which has at least one rod slideably disposed therein. The tube and the rod are arranged such that when the screw engages the tube, the screw forces the rod to slide partially out of the tube. The end of the rod which extends out of the tube is preferably provided with a surface which frictionally engages the inner wall of the floor sink drain pipe. According to a presently preferred embodiment, the locking member includes a tube with two rods slideably disposed therein and an orthogonal hole located between the rods for receiving the screw. When the screw enters the orthogonal hole, it urges the two rods away from each other and partially out of the tube to engage the side wall of the floor sink drain pipe. Either the tube, the rods, or both include a thread engaging portion for engaging the threads of the screw.

Locking grate device for a floor sink

A solid material pulverizer using a vertical shaft has a plurality of bearings above a lower fixed bearing that are resiliently held in fixed mounts allowing the bearings to rise vertically against spring pressure as the shaft lengthens from thermal expansion. Impellers fixed to the shaft between the bearings hurl solid material against rings arranged around the impellers, and the rings have multi-sided interiors with ridges and grooves confronting the impeller and angled inward from bottom to top of each ring.

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Northport, NY, United States of America

Guido Greco