Guide bar for the saw chain of a motor-driven chain saw and a method and apparatus for producing the same
CA 1305019 C · Owner: Unrath, Dieter · Inventors: Weinhold, Horst; Burger, Uwe; Unrath, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed to a guide bar which includes a fill body in the guide groove thereof. The fill body is disposed in the region of a lubricating bore and bridges the gap between the bottom of the groove and the rakers of the drive links of the saw chain. The fill body raises the bottom of the groove in the region where lubricant is supplied to the saw chain through the lubricating bore. The fill body has a recess formed at the location of the lubricating bore for receiving lubricant therein. With the invention the take, along of the lubricant by the rakers of the drive links of the saw chain is improved thereby reducing the quantity of lubricant which would otherwise be lost. 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 July 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 2009.
- 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.