Torque indicator
CA 2790184 C · Owner: Flowserve Management Company · Inventors: Hooss, William C.; Dolenti, William T.; Morris, Daniel J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Torque indicator markings incorporated with handwheel devices connected to actuators or valve assemblies provide visual indication of the amount of torque being applied to an actuator or valve assembly by the handwheel device. Tattletale torque indicators incorporated with a handwheel device further provide a persistent indication of the maximum amount of torque applied to an actuator or valve assembly connected to the handwheel device.
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 May 4, 2006 and granted April 7, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2026.
- 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.