Abstract: An abrasive drill bit includes: a hollow tubular body having a rotation axis and being configured to be rotated by a drill about the rotation axis; and a plurality of teeth disposed around the periphery of a distal end of the tubular body and extending distally from the tubular body, each of the plurality of teeth supporting a drilling abrasive, wherein the distal extension of the teeth relative to each other varies cyclically along the periphery of the distal end of the tubular portion such that when the drill bit is rotated about the rotation axis and advanced along the rotation axis into a surface of a drilled material, at least one distal-most tooth maintains contact with the surface and at least one least distally extending tooth does not contact the surface.

Abstract: An abrasive drill bit includes: a hollow tubular body having a rotation axis and being configured to be rotated by a drill about the rotation axis; and a plurality of teeth disposed around the periphery of a distal end of the tubular body and extending distally from the tubular body, each of the plurality of teeth supporting a drilling abrasive, wherein the distal extension of the teeth relative to each other varies cyclically along the periphery of the distal end of the tubular portion such that when the drill bit is rotated about the rotation axis and advanced along the rotation axis into a surface of a drilled material, at least one distal-most tooth maintains contact with the surface and at least one least distally extending tooth does not contact the surface.

Abstract: Set forth are systems and methods for moving objects in a modular structure, and particularly to parking vehicles within a parking structure. A system may include a pallet configured to receive an object, e.g., a vehicle; a structure including a plurality of modules configured to receive the pallet with the object, wherein the modules include multi-directional pallet transfer systems, the pallet transfer systems configured to transfer the pallet with the object to adjacent modules in any one of four orthogonal directions. The modules including sensing and control, may be remotely constructed, and assembled as units on site.

Abstract: Set forth are systems and methods for moving objects in a structure, and particularly to parking vehicles within a parking structure. A system may include a pallet configured to receive an object, e.g., a vehicle; a structure including a plurality of modules configured to receive the pallet with the object, wherein the modules include multi-directional pallet transfer systems, the pallet transfer systems configured to transfer the pallet with the object to adjacent modules in any one of four orthogonal directions.