Multijoint manipulator
Patent 4500251 Issued on February 19, 1985. Estimated Expiration Date: 
February 1, 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.
February 1, 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 2665102 Cable-operated power manipulator Pick and place robot Patent #: 4398863 InventorsApplicationNo. 06/463016 filed on 02/01/1983US Classes:414/719, Return, buffer, or counterweight feature248/123.11, Counterbalanced414/7, Having flexible motion transmission means414/735, Grab has swinging movement in plural planes901/21, Flaccid drive element901/48COUNTERBALANCEExaminersPrimary: Spar, Robert J.Assistant: Underwood, Donald W. Attorney, Agent or FirmInternational ClassesB25J 9/04 (20060101)B25J 9/02 (20060101) B25J 9/10 (20060101) B25J 19/00 (20060101) Foreign Application Priority Data1982-02-05 JPAbstractThere is disclosed a multijoint in which the primary moment force caused by a combined gravity of the lower arm which is supported by an elbow joint portion for pivotting the upper and lower arm together and a distal mechanism fitted to the distal end of the lower arm, is minimized by imparting a force opposite the primary moment force thereby reducing the load of an electric motor for driving the elbow joint portion. | |
