Other

Century International Corporation

Paul A Crafton

The present invention is a system for the robotic fabrication of a set of parallel pipelines or tunnels along a curvilinear path without limitation as to distance, direction and depth. A large diameter bore is made by a boring unit as the boring unit moves tangentially along the path through the earth. Prefabricated segments of the pipeline body or tunnel body are then installed by the system at a plurality of locations in the bore, such that their axes are instantaneously parallel to each other and to the large diameter bore, as extensions of the duct body already installed. The annular space between the extensions and the large diameter bore is then occasionally filled along the ducts with a composite material thereby supporting the several smaller diameter structurally independent permanent ducts in the large diameter bore. The prefabricated duct segments function as the structural body of the ducts. Along those segments of the path not through solid material, the prefabricated segments, as successively installed, structurally function as a cantilever bridge through the non-solid region of the path.

System for the robotic fabrication of pipelines and tunnels along

A system for very high speed ground transportation employing vehicles running in tunnels. The interior surface of the tunnels is a helical thread, and the wheels of the vehicle are helical gears meshing with the helical interior surface of the tunnel so as to provide positive traction. The vehicles have top traction wheels as well as bottom traction wheels in order to provide dynamic stability at very high vehicular speeds. Each vehicle carries an inner compartment coupled to the vehicle so that the compartment may be continually positioned relative to the vehicle in order to provide passenger comfort and/or cargo safety as the vehicle moves down the tunnel when the longitudinal axis of the tunnel has curvature.

Very high speed ground transportation system

An authority verification system for verifying the authority of the user of a credit or other account by assigning a different code name to each account. When an account is used, the code name, in enciphered form is written on a certificate along with other information necessary to debit the credit account. Verification apparatus deciphers the code name and compares it with the code name assigned to the account being debited. In addition, when the credit or other account is either a checking account or charge account, other enciphered codes may be included on each check and credit card to protect against alteration of the check or credit card and thus assure check or credit card authenticity.

Personal authority verification system

A drilling or tunneling system in which a first, relatively large diameter bore is made, the loosened material is mixed with a stabilizing material, and a plurality of smaller permanent ducts are formed behind the boring unit. Power, control information, stabilizing material and excess material are conveyed to and from the unit by means of a series of mobile carrier units which travel through the smaller ducts and which function in the manner of an endless conveyor.

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Potomac, MD, United States of America

Paul A Crafton