Spring disconnect mechanism for self centering multiple axis analog control stick
Patent 4489304 Issued on December 18, 1984. Estimated Expiration Date: 
July 22, 2003. 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.
July 22, 2003. 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 2929258 3365975 3394611 Balance control for use in 4-channel stereophonic system Apparatus for controlling two crossed proportional adjusting devices by means of a single control stick Control stick assembly for radio control equipment Angular movement resolvers Joystick controller Control stick assembly Joystick control Patent #: 4375631 InventorApplicationNo. 06/516300 filed on 07/22/1983US Classes:338/128, Plural74/471XYControl moves in two planesExaminersPrimary: Scott, J. R.Attorney, Agent or FirmInternational ClassesG05G 9/00 (20060101)G05G 9/047 (20060101) H01C 10/00 (20060101) H01C 10/14 (20060101) AbstractA mechanism for connecting and disconnecting return springs for multiple axis analog control sticks. The control stick, movable in two axes, can be fully spring centered along both axes, spring centered along one axis and frictionally positioned along the other axis, or freely frictionally positioned along both axes. Externally accessible pins are selectably operable to engage or disengage the centering springs to change control stick modes. Additionally, motion of the control stick in one or both axes may be substantially inhibited by the pins. | |
