Friction welding apparatus
CA 1296856 C · Owner: Schelmbauer, Edward Joseph · Inventors: Schelmbauer, Edward Joseph; Hoefer, John Alan; Perry, David Sheperd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hoefer et al, FRICTION WELDING APPARATUS ABSTRACT, Apparatus for holding and spinning a plastic part during a friction welding operation to join the plastic part to a work piece. There is included in the apparatus a driver to impart rotational movement, a vacuum chamber, and a rotatable part driver Assembly. The part driver assembly is connected to the driver for rotational movement and has air ports in air flow communication with the vacuum chamber. The part driver assembly rotates the plastic part to be friction welded to a work piece. The part driver assembly also includes a vacuum head member with a hollow body rotatable independent of the part driver assembly, one end of the vacuum …
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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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
- 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.