Gas tank crushing apparatus
CA 2090896 A1 · Owner: Bittner, Herman · Inventors: Bittner, Herman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A relatively simple safe gas tank crushing, apparatus includes a frame defined by parallel spaced apart, side walls carrying a first pair of spaced apart spiked, counterrotating rollers for receiving a gas tank from an inclined inlet ramp, the spikes serving to puncture the tank during preliminary crushing, so that any gasoline remaining in the tank can drip into a container beneath the rollers. The gas tank passes between a second, lower pair of smooth parallel counterrotating rollers for further crushing and discharge via an inclined outlet ramp. A simple drive for the apparatus includes a pair of hydraulic motors each connected, to a pair of rollers by sprocket wheels and chains.
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 March 3, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 3, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 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.