Disc module spacer improvement
CA 1301701 C · Owner: Bielagus, Joseph B. · Inventors: Bielagus, Joseph B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disc screen or like shaft structure in which screen discs 25 and spacers 28 are connected together in modular relation. The spacers 28 support the discs axially and are formed of plastic to allow the discs to deflect from their radial plane and the plastic spacers have an outer metallic surround 30 which is of smaller length than the spacers to present a protective metallic outwardly facing surface but allow the discs 25 to deflect laterally. The assembly is placed under a predetermined end-wise compression and the module is mounted on a rectangular shaft 27 which is suitably supported for rotation.
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 May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 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.