Swing drive mechanism
CA 2450332 A1 · Owner: Graco Children'S Products Inc. · Inventors: Stauffer, Dennis R.; Dillner, James Michael; Ransil, Matthew J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A swing drive mechanism for a swing having a swing seat at least one, hanger arm supporting the swing seat and a pivot shaft providing, reciprocal motion to the swing seat via the at least one hanger arm is described. The drive mechanism may include a gear an eccentric, element coupled to the gear and a motor mechanism configured to drive the gear. The drive mechanism may also include a substantially elongated drive Link having a proximal end and a distal end the proximal end, coupled to the gear via the eccentric element and a spring coupled to, and configured to being driven by the dicta!! end of the drive link. The spring being configured to directly drive the pivot shaft in a reciprocal …
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 November 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 2025.
- 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.