Abstract: A concentrated solar thermal receiver is mounted on a tower to receive concentrated solar thermal energy from a concentrating array of solar reflectors. The receiver comprises a single layered array of tubes configured to carry a heat transfer fluid such as sodium and defining in combination an exposed concentrated solar thermal energy receiving surface. The array of tubes have a lower fluid inlet header communicating with an inlet conduit, and an upper fluid outlet communicating with an outlet conduit. The tubes are arranged in a serpentine configuration and define a fluid flow path which is predominantly transverse and upward. The receiver includes a thermally insulating cover movable between an open position and a closed position in which the solar thermal energy receiving surface is covered to block or reduce the incidence of solar flux on the tubes or to reduce heat loss from the array of tubes when they are not operational.

Abstract: FCHTMC engine defines a new device, not any makeover. Some instances of conflict, which may arise in general claims for the Stirling or all other engines, are, therefore, of no consequences. This engine improves over the power, efficiency, size, weight, complicity, and versatility of the Stirling and other engines—all known to this date. This application makes the use of the specific refrigerant, Duracool™, for propulsion, not cooling, and the use of the specific ceramic Z500. Multiple horizontal layers describe the engine inner configuration within these layers, defining the space for internal components, providing a simplicity of assembly/dis-assembly and the pipes' usage in structure. The meaning—pipes are incorporated inside of the device, excluding external piping. This style of construction defines the unimpeded access to improve manufacturing costs. This device is a single-hot cycle, multi-cylinder, and none-rotary engine without any vibratory or gyroscopic reactions.

Abstract: The present invention relates to interactive advertising which permits a vendor to be provided with feedback from interested consumers. A publically accessible data transfer system is also disclosed which permits members of the public equipped with personal digital assistants (PDA) (45) to receive and transmit data via a transponder (9) located on outdoor advertising signs (1) or similar locations. The transponder (9) includes a cache memory (54) and is able to communicate with a server (42) to upload and download data. A system of product data dissemination and a commercial premises data transfer system are also disclosed.

Abstract: The present invention relates to interactive advertising which permits a vendor to be provided with feedback from interested consumers. A publically accessible data transfer system is also disclosed which permits members of the public equipped with personal digital assistants (PDA) (45) to receive and transmit data via a transponder (9) located on outdoor advertising signs (1) or similar locations. The transponder (9) includes a cache memory (54) and is able to communicate with a server (42) to upload and download data. A system of product data dissemination and a commercial premises data transfer system are also disclosed.