Damper blade seal
CA 1292907 C · Owner: American Standard Inc. · Inventors: Davis, James Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title, DAMPER BLADE SEAL, Inventor, James Allen Davis Abstract, A rectangular damper blade rotates about its longitudinal center line between an open and closed position to control the airflow entering an enclosure. Two longitudinal edges of the damper blade become positioned between two inlet edges of the enclosure as the blade rotates to the closed position. The blade is associated with two longitudinal seals. One seal is attached directly to one of the blade's longitudinal edges and provides wiping contact against one of the inlet edges. The other seal is attached to the other inlet edge and provides wiping contact against the blade's other longitudinal edge. Both seals have similar …
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 December 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 2008.
- 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.