Method and apparatus for making a positive drive power transmission belt
CA 1136822 A · Owner: Dayco Corporation · Inventors: Wetzel, Robert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is provided herein for building an improved positive drive power transmission belt having a plurality of alternating grooves and teeth for meshing with the teeth of a pulley the drive belt being, provided with reinforcing fibers distributed through at least a portion of each tooth. An improved apparatus for building such a belt is also provided herein. The method includes the steps of: wrapping a toothcovering fabric around a cylindrical mold which has circumferentially spaced alternating axial grooves and ridges; wrapping a layer of fiberloaded elastomeric material around the covering fabric; applying pressure in a helical fashion against the elastomeric layer with a …
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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 December 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.