Refuse compactor
CA 1071153 A · Owner: Maxon Compactor Corporation · Inventors: Peterson, Robert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to refuse compactors. It is previously known to utilize compressed air for driving a compactor plate through a compression stroke. These super-atmospheric air powered compactors have certain disadvantages and inherent safety hazards due to the compressed air. Also known are compactors in which the compression stroke is accomplished by evacuating the refuse space, thereby driving of the plate through the stroke by atmospheric pressure acting on the outer surface of the plate, and the pressure plate returned by spring action upon venting of the refuse space to atmosphere. However this return system has been found to be costly and unreliable. The present invention …
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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
- Granted February 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 1997.
- 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.