Remote, electrical steering system with fault protection
Patent 5361024 Issued on November 1, 1994. Estimated Expiration Date: 
May 20, 2013. 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.
May 20, 2013. 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 ReferencesInventorsAssigneeApplicationNo. 065125 filed on 05/20/1993US Classes:318/588, Marine vehicles361/23Motor protective condition responsive circuitsExaminersPrimary: Wysocki, JonathanAttorney, Agent or FirmForeign Patent References
International ClassG05D 001/00AbstractA remote, electrical steering system for marine vehicles including an electrical motor operable by a control and power circuit to rotate a drive screw having a screw connection to a nut in a drive tube for moving the drive tube in translation to cause steering movement of a motor-rudder with the control circuit sensing various fault conditions for placing the electrical motor in a brake condition to inhibit inadvertent steering and with the screw and nut connection resisting backlash from the motor-rudder to inhibit inadvertent steering and isolate the electrical motor and associated gearing from backlash loads.Field of SearchMarine vehiclesCelestial navigation With stabilizing features (e.g., anti-hunting, damping) Electric braking near balance (e.g., dynamic) "Feelback" systems MOTOR-REVERSING Periodic- or intermittent-reversing In response to movement or position (e.g., limit of travel) of motor or driven device Automatic and/or with time-delay means With means to delay reversing until motor substantially stops Instant of, or passage or predetermined time or having time-delay means Movement or position of motor or driven device BRAKING Condition of motor or driven device Speed, acceleration, movement or position of motor or driven device Electrical condition In excess of a predetermined valve Overloading limit-of-travel-type control means Motor protective condition responsive circuits With time delay With thermistor sensor Voltage Distance relaying | |
