Emergency release door stop assembly for a bidirectional swinging door
CA 1055546 A · Owner: Lawrence Brothers · Inventors: Johnson, Larry K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A door stop assembly for a bidirectional swinging door permits opening the door in a first direction during normal use and to permit selective opening of the door in a second direction during an emergency. The stop is employed in an assembly which includes a face or strike plate having an opening for receipt of a strike member a housing formed on one side, thereof, all adapted to be set in a mortise of a door frame. The door stop assembly has a floating body member which can move linearly inwardly into the housing so that the stop engaging surface is displaced from engagement with the door, thereby permitting the door to be opened in the opposite direction of its normal use. The body member …
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
- Granted May 29, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 29, 1996.
- 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.