Blast aerator
CA 1208181 A · Owner: Global Manufacturing Company, Inc. · Inventors: Tompkins, L. Kirk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE:BLAST AERATOR, Abstract of the Disclosure A blast aerator for dislodging bulk materials in storage hoppers or the like. The blast aerator (10) preferably comprises a rigid, generally cylindrical tank (10A) with a blast discharge opening (37) coaxially aligned with its axis. A blast discharge assembly (8) coupled to the discharge opening includes an elongated, one-piece, rigid discharge pipe (27) of a predetermined internal diameter. A valve seat assembly (54) is coaxially secured against an internal shoulder (43) of the pipe. A resilient dual diameter piston (61) is disposed within an intermediate portion of the pipe for axial movement between a sealing position wherein its reduced …
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 July 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 2003.
- 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.