Inductive power distribution system
Patent 5293308 Issued on March 8, 1994. Estimated Expiration Date: 
January 30, 2012. Estimated 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.
January 30, 2012. Estimated 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.Patent References 3532934 Regulator for inductively coupled power distribution system Patent #: 4914539 InventorsAssigneeApplicationNo. 827887 filed on 01/30/1992US Classes:363/37, By semiconductor rectifier and inverter324/392, Using a pulse signal technique324/402, Apparatus for coupling a measuring instrument to an ignition system336/118, Relatively movable core and coils336/119, Coil and core movable as a unit336/178WITH CLOSED CORE INTERRUPTED BY AN AIR GAPExaminersPrimary: Voeltz, Emanuel T.Attorney, Agent or FirmForeign Patent References
International ClassH02M 005/458Foreign Application Priority Data1991-03-26 NZAbstractA contactless inductive power distribution system operating at 10 KHz has a self tuning resonant power supply connected to a resonant primary conductive path comprising a pair of parallel litz wire conductors each encapsulated within an insulated sheath and supported on a structural monorail beam on which a plurality of electric vehicles can run. Each vehicle has an electric motor capable of deriving power from a resonant pick-up coil wound on a ferrite core mounted on the vehicle in close proximity to the primary conductors. Each vehicle also has switching means capable of preventing a lightly loaded vehicle from presenting a reduced load to the resonant primary. In one version this comprises an isolating coil having a switch to switch the coil between an open circuit and a short circuit, so that when the switch is switched from one state to another state the power coupled between the primary conductive path and the pick-up coil is changed.Other References
Field of SearchBy semiconductor rectifier and inverterRelatively movable core and coils Coil and core movable as a unit Movable along or parallel to other coil axis CORE SURROUNDING LINEAR CONDUCTOR Hinged core WITH CLOSED CORE INTERRUPTED BY AN AIR GAP Miner's safety type Line-wire or cable-attaching support Using a pulse signal technique Using an illuminating device to indicate spark plug condition Apparatus for coupling a measuring instrument to an ignition system | |
