Mechanical automatic aisle lock
CA 2102337 A1 · Owner: Spacesaver Corporation · Inventors: Fay, Daniel K.; Muth, James C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mechanism that automatically locks a movable storage unit against closure of an aisle between the unit and a blocking object such as a facing movable or stationary storage unit or wall while permit-, ting continued opening of the aisle without any elec-, trical controls. A ratcheting device such as a pawl, and a toothed wheel, is shiftable between a ratcheting state permitting movement of the movable storage unit only away from the facing storage unit or wall and a, non-ratcheting state permitting movement of the unit in either direction. The mechanism includes a bar biased toward the facing storage unit or wall and a, drive shaft rotated by the bar and driving a cam block to shift the …
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 3, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 3, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 2015.
- 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.