Hand controller multiple circuit switch
Patent 4433217 Issued on February 21, 1984. Estimated Expiration Date: 
August 16, 2002. 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.
August 16, 2002. 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 ReferencesSwitch apparatus Dual lateral switch device Dome switch having contacts offering extended wear Joystick control Patent #: 4349708 InventorAssigneeApplicationNo. 06/408328 filed on 08/16/1982US Classes:200/5R, Multiple switch200/17R, Operating means200/5A, With independent operators200/6AUniversally pivoted handleExaminersPrimary: Scott, J. R.Attorney, Agent or FirmInternational ClassesG06F 3/033 (20060101)H01H 25/04 (20060101) H01H 9/02 (20060101) AbstractA hand controller for use in controlling the motion of a cursor on a video display comprises a spherical surface on which is mounted a flat plate. On the bottom of the flat plate is a unique electrical switch capable of indicating the direction in which the flat plate is rocked over the spherical surface. Attached to the bottom of the flat plate adjacent the spherical surface is a spring consisting of a substantially flat center portion and four spiralling arms extending from the periphery of said center portion to attach to the structure on which the spherical surface is mounted. When the flat plate is rocked over said spherical surface, the spring generates a restoring force which, upon removal of the rocking force, restores the flat plate to its nominal position. The spring makes possible rocking motion of the flat plate over the spherical surface without pinning the flat plate to a point on the spherical surface. In one embodiment, the controller is capable of moving the cursor in eight different directions. | |
