Design of coiled ferromagnetic composite plate spring

Introduction In general, motors are constructed by both electro and permanent magnets, and move due to the attractive magnet using force, which originates from these magnets. The motors rotate infinitely in principal; however the output torque is limited. Technology description Researchers at the UW have developed an actuator that uses a ferromagnetic plate spring and electromagnets (or hybrid magnets which are constructed from both electro and permanent magnets). The output power of the torque can be much higher than conventional motors. Business opportunity The ferromagnetic spring actuator produces higher output torque. Applications include auto, aircraft and helicopter components; use as solenoids and in connectdisconnect systems. Unlike conventional mechanisms that require a constant source of energy to keep a system open or closed, solenoids based on the ferromagnetic plate spring only need to be switched once to stay in position even under heavy forces. Stage of development Initial data and working prototypes exist for this technology. Intellectual property position The UW is currently reviewing this technology for worldwide patent protection. For more information on this technology contact:
Patrick Shelby Technology Manager jpshelby@u.washington.edu 206-616-2127

Type of Offer: Licensing



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