Spindle lock for an orbital abrading or polishing tool
CA 2467480 C · Owner: Hutchins Manufacturing Company · Inventors: Hutchins, Donald H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An orbital abrading or polishing tool is provided that includes a tool body to be held and manipulated by a user. A motor is carried by the tool body and has a motor shaft driven for rotation about a primary axis. The motor shaft has a cylindrical portion at one end. A spindle is received within the cylindrical portion of the motor shaft for rotation about a secondary axis offset from and parallel to the primary axis. The cylindrical portion of the motor shaft has an opening extending inwardly to the spindle and a locking element is extendable through the motor shaft opening to engage the spindle in a locking relationship.
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
- Filed May 17, 2004 and granted February 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2026.
- 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.