Universal joint
CA 1103472 A · Owner: Ingersoll-Rand Company · Inventors: Moore, Chauncey H.; Hugh, Melvin D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A universal joint for power drive tools and the like. The universal assembly includes a means for connection to a tool and a means for engaging the nut or a head of a fastening member, such as a bolt. Articulation of the universal is accomplished by means of a quadrified ball in a square socket. The head of the ball retains its spherical form and the base of the socket is spherical in shape to accommodate the ball head. The four sides of the quadrified ball do not intersect thereby retaining the spherical configuration of the ball at the corners. A unique ball spring preloads the socket. The resulting combination is ideally suited for power drive tools wherein the …
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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 June 23, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.