Modular control apparatus for a power impact tool
CA 2492443 A1 · Owner: Chicago Pneumatic Tool Company · Inventors: Giardino, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention comprises a power impact torque tool (10) that is torque-limited by a novel torque-timing device (600) that controls the amount of time that the tool motor (14) operates after the operator initiates tool (10) operation. The invention also includes the torque-timing device (600) itself and with other tools. The invention further includes the torque-timing device (600) in the form of a modular, releasably-attachable user-adjustable control , apparatus (600) for tools powered by compressable fluids. The torque-timelimiting device (600) allows the user to adjust a needle valve (300) that controls the filing of a reservoir (400) which when full, provides the , pressure …
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 June 23, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 2025.
- 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.