Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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US Patent 6374746 - Magnetic levitation transportation system and method
US Patent Issued on April 23, 2002
Estimated Patent Expiration Date:
February 7, 2020Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
February 7, 2020Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA ground-based capsule pipeline with greatly improved speed, energy efficiency, and cost for transportation of freight and/or people. Passive magnetic levitation is used to suspend inert, rugged capsules within an air-evacuated pipeline, where they are propelled by a linear motor. Permanent magnet pole arrays incorporated in the capsules interact with inductively-enhanced conductive loops on the interior of the pipeline to produce a low "take-off" speed, high lift, and a high lift-drag ratio.Other References
| InventorApplicationNo. 499604 filed on 02/07/2000US Classes:104/138.1, TUBULAR WAY104/27, TERMINALS AND STATIONS104/28, Passenger104/139, TRUCK IN CONDUIT104/282, Propulsion means employed to suspend car104/283By permanent magnets onlyField of Search104/290, Linear motor104/292, Propulsion by active guideway; e.g., linear synchronous motor, etc.104/288, Electric104/281, MAGNETICALLY SUSPENDED CAR104/282, Propulsion means employed to suspend car104/283, By permanent magnets only104/138.1, TUBULAR WAY104/139, TRUCK IN CONDUIT104/138.2, Internal service device104/284, Including means to sense or control car position or attitude with respect to guideway198/619Load propelled as the reactive means in a linear motor or moving magnetic fieldExaminersPrimary: Morano, S. JosephAssistant: Jules, Frantz F. Attorney, Agent or FirmUS Patent References2488287, 3724690, 3724691, 3738281, 3763788, 3951074, Secondary lift for magnetically levitated vehiclesIssued on: 04/20/1976 Inventor: Cooper4015540, Electromagnetic transportation system Issued on: 04/05/1977 Inventor: Roxberry4023500, High-speed ground transportation system Issued on: 05/17/1977 Inventor: Diggs4075948, Rapid transit system Issued on: 02/28/1978 Inventor: Minovitch4795113, Electromagnetic transportation system for manned space travel Issued on: 01/03/1989 Inventor: Minovitch5146853, Compact magnetic levitation transportation system Issued on: 09/15/1992 Inventor: Suppes5241912, Transferring apparatus having a magnetically floating carrier member with the floating magnets acting through a reduced thickness portion of a wall Issued on: 09/07/1993 Inventor: Oshima, et al.5253591, High speed maglev design Issued on: 10/19/1993 Inventor: Rote, et al.5253592, Magnetic levitation configuration incorporating levitation, guidance and linear synchronous motor Issued on: 10/19/1993 Inventor: Coffey5270593, Air cored, linear induction motor for magnetically levitated systems Issued on: 12/14/1993 Inventor: Levi, et al.5282424, High speed transport system Issued on: 02/01/1994 Inventor: O'Neill5388527, Multiple magnet positioning apparatus for magnetic levitation vehicles Issued on: 02/14/1995 Inventor: Thornton5433155, High speed transport system Issued on: 07/18/1995 Inventor: O'Neill, deceased, et al.5460098, Air-cushion vehicle transportation system Issued on: 10/24/1995 Inventor: Jackson, et al.5517924, Double row loop-coil configuration for high-speed electrodynamic maglev suspension, guidance, propulsion and guideway directional switching Issued on: 05/21/1996 Inventor: He, et al.5566620, Levitated rail system Issued on: 10/22/1996 Inventor: Siewert5641054, Magnetic levitation conveyor apparatus Issued on: 06/24/1997 Inventor: Mori, et al.5652472, Magnetodynamic levitation and stabilizing selfregulating system Issued on: 07/29/1997 Inventor: Tozoni5653175, Vacuum highway vehicle Issued on: 08/05/1997 Inventor: Milligan5722326, Magnetic levitation system for moving objects Issued on: 03/03/1998 Inventor: Post5865123, Electromagnetic induction suspension and horizontal switching system for a vehicle on a planar guideway Issued on: 02/02/1999 Inventor: Powell, et al.5950543, Evacuated tube transport Issued on: 09/14/1999 Inventor: Oster6044770Integrated high speed MAGLEV system Issued on: 04/04/2000 Inventor: Davey, et al. International ClassB61B 013/00 |
