Abstract: Methods directed to a producing precast pervious concrete panels. Each pervious concrete panel has a plurality of layers of concrete mixture, wherein the aggregate used in each layer may be a different size and each layer is compacted after being laid. The method may further include providing a slip-former machine or an extruder machine to lay the layers of pervious concrete mixture.

Abstract: Systems and methods directed to a precast pervious concrete panel. Each pervious concrete panel has a plurality of layers of concrete mixture, wherein the aggregate used in each layer may be a different size. The panels have slots at predetermined locations allowing installation of a joint connector; either dry or with a bonding material thereby allowing connection of multiple panels into a solid slab. Multiple pervious concrete panels can be combined with a collection system allowing collection/reuse of water passing through the panels. Precast pervious concrete panels can be used as inserts in ready mix or cast in place concrete frames allowing for easy replacement of the pieces.

Abstract: The present invention relates to an expandable net device. An embodiment includes an expandable structure that is configurable in an expanded configuration and a contracted configuration. In an embodiment, the contracted configuration can facilitate insertion of the net device through an ice fishing hole.