Rotation check mechanism
CA 2076093 A1 · Owner: Ivg Australia Pty. Ltd. · Inventors: Wade, Malcolm V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Figure 1 refers), A cylindrical oil-filled casing (2,3,5) has an input shaft (12) on which are mounted a pair of braking rings (17,26) which are allowed limited axial and circumferential movement with respect to one another. The ring (26) is driven by the shaft and drives the other ring (17) through a circle of angularly-spaced spring-biassed balls (28) mounted in tear-drop shaped recesses in the opposed faces of the rings (17,26). Each ring has a frusto-conical braking rim extending parallel to a frusto-conical braking surface (8,9) provided on the casing part (5). The rims of the rings (17,26) have angularly-spaced shallow, chordal, segments removed to provide recesses which during …
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
- Filed August 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2014.
- 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.