Diaphragm valve with electronic pressure detection
CA 2883044 C · Owner: Sdb Ip Holdings, Llc · Inventors: Bush, Shawn D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for detecting wear in a flush valve configured to at least partially reseal based upon water pressure within the flush valve. The flush valve is associated with a typical water pressure or pressure range required to at least partially reseal the flush valve during operation. During normal operation the typical water pressure or pressure range is present in the flush valve at a known time after operation. The apparatus comprises a microprocessor configured to: determine a sensed water pressure in at least a portion of the flush valve at the known time required to at least partially reseal the flush valve during normal operation; determine if the sensed water pressure is less …
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 October 7, 2005 and granted August 15, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 7, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.