Railways – Car-carried propulsion system – Pneumatic
Patent
1974-11-18
1976-09-14
Spar, Robert J.
Railways
Car-carried propulsion system
Pneumatic
104138R, 105365, 243 2, 243 38, 302 24, 302 31, B61B 1310
Patent
active
039800245
ABSTRACT:
A low pressure transportation system for moving a vehicle between stations which are at atmospheric pressure without the use of valves in the vehicle conduit and without any substantial movement of system air in or out of the vehicle portals. The system comprising: an elongated vehicle conduit having first and second portals located at the extreme ends of the conduit, a plurality of coanda-effect directional slit orifices communicating with the conduit immediately adjacent the portals for supplying substantially all of the system air to the conduit at one end and removing substantially all of the system air at the other end. A pair of manifolds communicating with the separate areas of directional orifices; and blower means supplying air to one manifold and removing the air from the other manifold.
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patent: 1307365 (1919-06-01), Kinyon
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patent: 3352512 (1967-11-01), James, Sr.
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patent: 3731647 (1973-05-01), Mimbidle, Jr. et al.
patent: 3734567 (1973-05-01), Fong
patent: 3797405 (1974-03-01), Carstens et al.
Cypher James R.
Reese Randolph A.
Spar Robert J.
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