Steven A Brock

US Patent:

41868714, Feb 5, 1980

Filed:

Mar 1, 1978

Appl. No.:

5/882529

Inventors:

Robert W. Anderson - Morgan Hill CA
Steven F. Brock - San Jose CA
May L. Gee - San Jose CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06K 500
H04Q 354

US Classification:

235380

Abstract:

A transaction execution system having a multiple account data base and a plurality of transaction terminals in communication with the host. The terminals each include a keyboard, a display, document handlng subsystems, a hardware control subsystem, a communication subsystem and a programmable control subsystem supervising the other subsystems. A user initiates a transaction request by inserting a card, which may have been issued by any of a plurality of cooperating card issuers or banks, into one of the terminals. The issuer identification number is read from the card, and used to search a table of card format and encryption key data. If the corresponding format and key data is located in the table, the terminal requests entry of a preassigned personal ID number through the keyboard. Verification data located on the card by format data from the table is encrypted in response to the key data from the table for comparison with the keyboard entered ID number. If the corresponding format and key data is not located in the table, the card data is sent to the host, which accesses a master table with the issuer identification number, and communicates back to the terminal the corresponding format and key data located in the master table.

US Patent:

43017479, Nov 24, 1981

Filed:

Jun 25, 1979

Appl. No.:

6/052056

Inventors:

Hanford N. Lockwood - San Mateo CA
Louis D. Siegert - Burlingame CA
Steven B. Brock - Palo Alto CA

Assignee:

Coen Company, Inc. - Burlingame CA

International Classification:

F23J 100

US Classification:

110171

Abstract:

A furnace includes a downdraft combustion chamber, a burner mounted at the top of a combustion chamber for burning particulate ash-containing fuel, and a generally horizontal duct near the lower end of the combustion chamber for withdrawing hot gases rsulting from the combustion. The combustion chamber is downwardly tapered to a relatively small conduit, downward into which molten slag from the ash flows. The slag, upon passing through the conduit, passes into and through a downwardly open slag-receiving chamber below the combustion chamber. The slag falls through out the bottom of the slag-receiving chamber into a volume of water immediately below. A portion of the hot gases is diverted through the slag-receiving chamber in order to maintain the slag-receiving chamber at a sufficiently high temperature so that the slag passing therethrough is prevented from solidifying. The portion of hot gas is then directed to a mill for drying fuel therein prior to combustion.