Abstract: A device for maintaining a plurality of ocean wave energy converters at a predetermined proximity. The device includes at least one deck having a plurality openings, each adapted to receive a portion of an ocean wave energy converter.

Abstract: Microstrip patch antenna (46), feed structure (48), and matching circuit (50) designs for an RFID tag (10). A balanced feed design using balanced feeds coupled by a shorting stub (56) to create a virtual short between the two feeds so as to eliminate the need for physically connecting substrate to the ground plane. A dual feed structure design using a four-terminal IC can be connected to two antennas (46a,46b) resonating at different frequencies so as to provide directional and polarization diversity. A combined near/field-far/field design using a microstrip antenna providing electromagnetic coupling for far-field operation, and a looping matching circuit providing inductive coupling for near-field operation. A dual-antenna design using first and second microstrip antennas providing directional diversity when affixed to a cylindrical or conical object, and a protective superstrate (66). An annual antenna (46c) design for application to the top of a metal cylinder around a stem.

Abstract: The system of the present invention is a system for supplying air and controlling the flow of air into and out of the chambers of a patient supporting air mattress. It includes an electric motor powered variable speed blower, a two position rotary valve, air mattress supply lines communicating between the rotary valve and the chambers of the air mattress, a continuous exhaust line also connected to the rotary valve, stepper motor controlled valves in the air mattress supply lines, pressure sensors between the stepper motor controlled valves and the chambers of the air mattress and a control unit for controlling the stepper motor controlled valves to control the amount by which the chambers of the air mattress are inflated.