Method for supplying a water-in-oil emulsion explosive into a cartridge machine and an apparatus used therefor
CA 1235931 A · Owner: Nippon Oil & Fats Co. Ltd. · Inventors: Moriyama, Hideo; Sugimoto, Kazutoshi; Motohira, Tsukasa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
Abstract, A feeder comprising a hopper and a pusher the pusher comprising a pusher sleeve, which is provided at its bottom with a perforated plate, and a cylinder actuating the pusher sleeve along the wall surface of the hopper, can supply directly a W/O emulsion explosive into a cartridge machine without accompanying with air and without breakage of hollow microspheres.
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.
Why it's free to use
- Granted May 3, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2005.
- 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.