Encapsulation of high voltage mechanism to prevent fracture thereof
CA 2106815 C · Owner: Channel Products, Inc. · Inventors: Berlincourt, Don A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Structure is disclosed for a piezoelectric high voltage impact device which prevents fracture of the piezoelectric element contained therein. A tape is applied to the, surface of the piezoelectric element and wrapped therearound. If the piezoelectric, element becomes fractured as a result of actuation thereof the tape provides , support to, the element permitting continued use of the device. A viscid encapsulating material can, be used within the device so as to act in conjunction with the tape to further support the, piezoelectric element permitting continued use of the impact device after fracture of the, element has occurred.
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 September 23, 1993 and granted June 27, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2015.
- 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.