Support mechanism for a dock leveler lift bag
CA 2173210 A1 · Owner: Kelley Company, Inc. · Inventors: Warner, Robert J.; Hodges, Charles Harwood
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A support and attachment mechanism for a dock leveler lift bag. The dock leveler (1) includes a supporting structure (4) which is mounted in a pit (2) in a loading dock (3) and the rear end of a ramp (5) is pivoted to the supporting structure so that the ramp (5) is movable between a horizontal position and an upwardly inclined position. A bag support member (16) is pivoted to the supporting structure and is located in the pit beneath the ramp (5). An inflatable bag assembly (10) is located adjacent the rear end of the ramp and is positioned between the underside of the ramp (5) and the bag support member (16). By inflating the bag assembly (10) the ramp can be pivoted from, the horizontal …
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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
- Filed September 26, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 26, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2016.
- 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.