Abstract: A multi-fluid heat exchanger having separate fluid flow paths for two fluid streams to be heated or cooled by a third fluid stream includes first and second elongated, parallel tubular headers (10, 12), having opposed ends (14), generally uniformly spaced elongated tube slots (16) in each of the headers (10, 12) with the tube slots (16) in one header (10) facing-and aligned with the tube slots (16) and the other header (12), a plurality of flattened tubes (20) extending between the headers (10, 12) and having ends (22) received in aligned ones of the tube slots (16), one tube slot (24) in each header being unoccupied by any of the flattened tubes (20), the one tube slots (24) being aligned with each other and located at a predetermined location between the ends (14) of the headers (10, 12) and between two groups (A, B) of the flattened tubes (20) so there are two groups of the flattened tubes (20) on each side of the one tube slot (24), a pair of baffles (30) in each header (10, 12) with one on each side of t

Abstract: An electronic purse card value system (10) includes terminal devices (12). Each terminal device includes a processor (26) which is in operative connection with a memory (28) and a modem (36). The processor is further in operative connection with components of the terminal device including a customer interface (14) through which inputs are accepted and outputs are delivered, a card reader (22) and a printing device (30,34). The terminal devices are operative to communicate with host computers (42,44,46) through a communication system (38). The system is operative to carry out transactions in which data representative of value is loaded and unloaded from integrated circuit chips on customer cards (24). Data representative of value is stored in the memories of the cards such that certain value amounts are stored in one memory area while other value amounts are stored in a second memory area.

Abstract: An electronic purse card value system (10) includes terminal devices (12). Each terminal device includes a processor (26) which is in operative connection with a memory (28) and a modem (36). The processor is further in operative connection with components of the terminal device including a customer interface (14) through which inputs are accepted and outputs are delivered, a card reader (22) and a printing device (30,34). The terminal devices are operative to communicate with host computers (42,44,46) through a communication system (38). The system is operative to carry out transactions in which data representative of value is loaded and unloaded from integrated circuit chips on customer cards (24).

Abstract: An electronic purse card value system (10) includes terminal devices (12). Each terminal device includes a processor (26) which is in operative connection with a memory (28) and a modem (36). The terminal devices operate in response to configuration data which is stored in the terminal memory. The configuration data is enabled to be programmed into the terminal device by transferring the configuration data from the memory of a smart card (24) which is read by a card reader (22) of the terminal device. The configuration data stored in the terminal may also be transferred to a smart card through the card reader. The smart card may then be taken to other terminals and used to program those terminals with similar configuration data.