Rotary acoustic horn with sleeve
CA 2343141 A1 · Owner: Minnesota Mining And Manufacturing Company · Inventors: Gopalakrishna, Haregoppa, S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotary acoustic horn imparts energy at a selected wavelength frequency, and , amplitude. The horn includes a shaft having an axial input end and an axial output end and a welding portion. The welding portion is mounted on the shaft and has a diameter that is greater than the diameter of the shaft. The welding portion has a weld face that expands and contracts with the application of acoustic energy. At least a portion of the weld face can be formed of a different material than the remainder of the welding portion. The welding portion can include a sleeve. The sleeve can be shrink fit onto the welding portion.
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 January 12, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 12, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2021.
- 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.