Device for braking the saw chain of a portable power saw
CA 1262691 C · Owner: Wallmark, Kenneth · Inventors: Wallmark, Kenneth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for braking the saw chain (3) of a portable power saw (1). The power saw has a front handle (5) to be gripped by one hand (6) of the saw operator, and a rear handle (7) to be gripped by the operator's other hand (8). The device includes a brake means (11) capable of braking the saw chain (3) by means of an actuating member (12). This may have the shape of an L-shaped tube (12) which is connected to a kickback guard (9) on the power saw, and which can be operated by the operator's rear hand as a result of a coercion wrenching movement of the rear hand (8) if any kickback of the power saw will occur.
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 November 7, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 7, 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.