Power rebar tying tool
CA 2093225 A1 · Owner: Forsyth, Eugene E. · Inventors: Forsyth, Eugene E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable hand operated power tool (20) for automatically tying intersecting rods, preferably rebar. An electric drive motor system (30) selectively energizes a transmission (40) disposed within a protective casing (41). A wire feed mechanism (78) and a spindle barrel assembly (25) which twists the wire are controlled by separate positive drive actuators (75, 80). A jaw assembly (48) projects outwardly from the casing to encircle the crossed rebar sections. The actuators are controlled by retractable levers (84) operated by electromagnets and normally engage suitable slots (200, 206) within the actuators to prevent them from transmitting rotary motion. When the levers are withdrawn …
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 31, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 31, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 2014.
- 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.