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Expired Canadian patentCanada

Split-ball type wrist and manipulator assembly for robot

CA 1210421 A · Owner: Westinghouse Electric Corporation · Inventors: Shum, Lanson Y.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A split-ball type wrist and manipulator assembly (Figure 6) includes a first ball portion 2 a second ball, portion 4 rotatable independently and relative to the first ball portion, and end effector 52 rotatably carried by the second ball portion 4, the first ball portion 2 being controlled in its rotation by the hollow outer shaft 38, the second ball portion 4 being controlled in its rotation by rotation of an inner shaft 39 coupled to the second ball portion by the hollow, flexible coupling 45 and the end effector rotation being controlled by the innermost hollow shaft 42 rotation connected to the end effector by the inner flexible coupling 53 and with power, line means 58 for controlling …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted August 26, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 8, 1982
GrantedAugust 26, 1986
Term endedAugust 26, 2003
Patent numberCA 1210421 A
Classification (IPC)B25J11/00 +1 more

Timeline

Timeline From CIPO dates

1983198619891992199519982001Application filedNov 8, 1982Patent grantedAug 26, 1986Term endedAug 26, 2003

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.