Method and installation for mounting and removing screws of an extrusion machine
CA 1313296 C · Owner: Vannier, Jean · Inventors: Vannier, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for mounting and removing screws of an extrusion machine comprising two screws (10a 10b), driven in rotation and guided at each of their ends by a bearing (1, 2). The method comprises placing the screw-bearing assembly on a work table (20) provided with adjustable devices (25, 26, 28) for supporting the screws, removing the bearings (1, 2) and extracting in succession the sections (12) by means of a suitable tooling and a section-hoisting device with respect to each screw separately, then simultaneously mounting by means of a double section-hoisting device a new section (12) on each splined shaft (11a, 11b) and repeating the operation for each pair of new sections placing back in, …
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 February 2, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 2, 2010.
- 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.