Abstract: A low-cost safety valve for gas lines and similar supply lines that can be remotely activated via a secure wireless link employing a low leakage sealing mechanism that is compatible with low energy actuators to for extended battery life. A miniaturized controller and wireless electronics assembly provides the control mechanism for actuating the valve, as well as reporting data regarding the valve status to wireless interrogators or external networks via an ad hoc wireless network. A variety of simple magnetic valve operating mechanisms can be implemented with the miniaturized electronic control circuits and the valve body. Such control actuation mechanisms enable automatic resetting or manual resetting valves. The gas line shut off valve can provide important safety benefits at an affordable price. An RFID transceiver may be included to enable low-power operation and communications using RFID technologies as well as an automatic antenna tuning capability to maximize radio range.

Abstract: The present invention is an improved shelving unit which is ideally suited for mounting in the corner of a room. The shelving unit includes comprising a first shelf comprising a substantially pentagonal flat shelf having a front edge, a first and second side edge and a first and second rear edge. The two rear edges are at right angles to each other to form a first corner, the first corner being opposite the front edge. The front edge and the first side edge forming a second corner, the front edge and second side edge forming a third corner, the first side edge and the first rear edge forming a right angled forth corner and the second side edge and the second rear edge forming a right angled fifth corner. The shelving unit further includes a rectangular second shelf having a first edge and four corners, the second shelf being mounted adjacent to and parallel with the first shelf, the first edge of the second shelf abutting one of the side edges of the first shelf.