Movable wrench equipped wth movable claw which is driven and rotated by adjusting rod
CA 1252316 A · Owner: Yang, Tai-Her · Inventors: Yang, Tai-Her
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an adjustable wrench having a movable claw which is driven and rotated by an adjusting rod. The specification discloses a wrench having an adjustable claw comprising a hollow handle, the handle having an open mouth; a first fanshaped gear mounted in the handle and fronting the mouth and a gear axle. A second fan-shaped gear is in meshing engagement with the first fan-shaped gear being axially, mounted for rotation on the gear axle. A screw gear is mounted on the gear axle. A movable claw has a bottom portion thereof mounted in a track in the handle the, bottom portion having a geared surface which is in meshing engagement with the screw gear the bottom, …
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 April 11, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 11, 2006.
- 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.