Explosive tube expansion
CA 1193528 A · Owner: Foster Wheeler Energy Corporation · Inventors: Schroeder, Joseph W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for expanding a tube within a tube sheet has an insert anda detonation device. The insert is sized to fit coaxially within the tube. The detonation device encircles the insert and can produce upon detonation an explosive force. Also included is an annular buffer sized to fit between the tube and the detonation device. In operation the, tube is inserted into a tube hole of the tube sheet. The insert is coaxially positioned within the tube and within the tube hole. The insert is overlayed with an explosive layer and the buffer is interposed between the explosive layer and the tube. The tube is joined to the tube sheet by detonating the explosive layer.
Read the whole patent
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 September 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2002.
- 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.