High density filler type filtration equipment
CA 1305072 C · Owner: Nakahara, Yasuhiro · Inventors: Sakamoto, Kiyoaki; Nakahara, Yasuhiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High density filler type filtration equipment includes an outer circumferential flange which detachably connects the cover around the upper end. A cylindrical column body fills the filler inside. The cover which has a fluid path and is lockably attached to the upper open end of the column body seals the open end when the aforementioned fillers are filled. A seal ring is prearranged to a flange which is extruding downward from the circumference of the cover and is insertedly set to the sealing position of press-fitting on the outer circumferential flange of the column body when the aforementioned lockable attachment is made. A partition membrane is set at the position to prevent the filler …
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 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 2009.
- 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.