The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2014
Filed:
Aug. 10, 2012
Gary Wayne Lewis, San Francisco, CA (US);
Gary Wayne Lewis, San Francisco, CA (US);
Other;
Abstract
Crown assemblies are described, having novel extension units, selectable vibrational lengths, stoppers with flexible coupling to the crown and regulated pressure against a headjoint tube, and crowns with radial-arm contact surfaces. The novel extension units are situated between the embouchure and the crown and extend the vibrational length between those points. This extension gives the flute tone greater depth and resonance and gives the player greater control over the vibration of the flute tube. A selectable extension unit features distinct vibrational lengths at indexed points of rotation of the crown, providing a means for rapidly changing the tone and response of the instrument in a fashion heretofore unknown on flutes. Improvements to crown and stopper design allow freer vibration of the headjoint tube between embouchure and crown, further enhancing the benefits of the novel extension unit.