Vibration dampening saw chain
CA 1284759 C · Owner: Macgavin, Donald J. · Inventors: Macgavin, Donald J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A saw chain length including articulated alternating center drive links and side links. Cutting links provide certain of the side links and a safety side link precedes each cutting link. The safety side link and its opposing tie strap link have shaved heel portions and thereby are raised off the guide bar when normally tensioned around the guide bar. The safety link is configured whereby engagement thereof by material being cut during a cutting operation induces pivoting of the safety link against the opposing tension force which tension force, thereby absorbs the impact prior to said heel portions engaging the guide bar edge.
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 June 11, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2008.
- 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.