Pawl and ratchet mechanism
CA 1160474 A · Owner: S.S.S. Patents Limited · Inventors: Heybourne, Robert H.; Clements, Herbert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PAWL AND RATCHET MECHANISM" A pawl and ratchet mechanism has a baulking member 4a which may be set in both a ratcheting and a pawl free condition in which the pawl and ratchet components 9, 18 of the mechanism are respectively in and out of engagement with each other the, baulking member 4a also being settable in a baulking condition which prevents relative movement of the said components 9 18, into the ratcheting condition, the baulking member 4a being maintained in the baulking condition when the relative rotation of the said components is inappropriate to permit the mechanism to be operated in the ratcheting condition. A thrust member 24 is engageable with the baulking member 4a and is …
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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 January 17, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 17, 2001.
- 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.