Powered pipe wrench type tool
CA 1237004 A · Owner: Rawe, William D. · Inventors: Rawe, William D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract A lightweight, portable, powered pipe wrench type tool (10) for loosening or tightening threaded pipe members includes a pair of wrenches (16) and (18) having jaws (26) and (30) and elongated handles (22). Each handle (22) includes an inward section (46) and an outward section (48) interconnected by a joint assembly (50) whereby the handle sections may be positioned in selective angular orientations relative to each other. A linear actuator (24) that laterally spans handle outward sections (48) is extendable to rotate the wrenches (16) and (18) relative to each other to loosen or tighten pipe members depending on the orientation of the wrenches relative to the pipe members.
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 24, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 24, 2005.
- 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.