Tuning device for rimless drums
CA 1283310 C · Owner: Gauger, Gary L. · Inventors: Gauger, Gary L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tunable shell-less, rimless drum utilizes a multiplicity of tuning assemblies positioned about the frame of a pretensioned or untensioned standard drum head. Each tuning assembly engages the frame and avoids tone impairing defamation of the drum during tuning so as to preserve the natural tonal quality of the drum. A pivotably mounted lever at the bottom of the tuning assembly bears against a tuning band which engages the drum membrane, and cooperating notches on tuning band and lever retain the tuning band in a fixed position relative to the frame to prevent pitch variation or binding due to tuning band movement. A threaded rod slides along a slot in the assembly and threadably engages a …
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 April 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 23, 2008.
- 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.