Fastener detection and firing control system for powered fastener driving tools
CA 2209875 C · Owner: Dewey, George G. · Inventors: Velan, G. Michael; Wendling, E. Jonathan; Bolger, Richard P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fastener detection system is provided for both internal combustion and powder actuated fastener driving tools and similar powered fastener driving tools. A sensor disposed at a portion of a fastener supply path detects the presence or absence of a fastener. In the combustion tool either or both of fuel delivery and combustion ignition are disabled when no fastener is detected. In the powder actuated tool an indicator notifies an operator when the sensor detects the absence of a fastener. The indicator may also be incorporated into the combustion tool.
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 July 9, 1997 and granted June 5, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 2019.
- 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.