Abstract: In certain embodiments, a system filter has a hollow, perforated, inner structure inside a hollow, perforated, outer structure that define an annular gap that receives granular filtering media retained by an (optional) media liner. An outer filter surrounds the outer structure. An (electric) pump may be located within the inner cavity of the inner structure or external to the system filter. When deployed in an underground vault, vault water flows through the outer filter, the outer structure, the outer portion of the media liner (if present), the filtering media, the inner portion of the media liner (if present), and the inner structure into the inner cavity from where the pump moves the filtered water out of the vault. The outer filter and/or the media liner may have a lipophobic, hydrophilic material that allows water to pass while blocking lipids without having the lipids adhere to the material.

Abstract: A cushion for a billiard table is disclosed. The cushion includes an extruded member having a substantially triangular or L-shaped cross-section and a layer of tape on one surface thereof for affixing the cushion to a billiard table. Also disclosed is an improved cue for billiards wherein a substantial portion of the weight of the cue is disposed in a distal portion of the cue located near the tip of the cue, which is used to strike a ball. The cue is preferably modular to allow substitution of various portions of the cue to permit it to be customized to a specific player. Also disclosed is a device for metering the speed of the surface of a billiard table. Also disclosed is a quick-change tip for a cue which includes an elastomeric material that is sized to snugly fit over the distal end of a cue to releasably secure the quick-change tip to the cue.

Abstract: A cushion for a billiard table is disclosed. The cushion includes an extruded member having a substantially triangular or L-shaped cross-section and a layer of tape on one surface thereof for affixing the cushion to a billiard table. Also disclosed is an improved cue for billiards wherein a substantial portion of the weight of the cue is disposed in a distal portion of the cue located near the tip of the cue, which is used to strike a ball. The cue is preferably modular to allow substitution of various portions of the cue to permit it to be customized to a specific player. Also disclosed is a device for metering the speed of the surface of a billiard table. Also disclosed is a quick-change tip for a cue which includes an elastomeric material that is sized to snugly fit over the distal end of a cue to releasably secure the quick-change tip to the cue.