Tubesheet for spiral wound hollow fiber permeator
CA 1294563 C · Owner: Trimmer, Johnny L. · Inventors: Trimmer, Johnny L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hollow fiber reverse osmosis permeator separation unit capable of producing over 100,000 gallons per day of processed water. The hollow fibers are spirally wound on a hollow core creating bundle of fiber lengths. Each of the fiber lengths pass through a tubesheet which is drilled with a hole pattern that cuts through all of the hollow fibers.
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 January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 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.