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:
Mar. 03, 2009
Filed:
Aug. 15, 2005
Robert Lerner, Miami Beach, FL (US);
Robert Lerner, Miami Beach, FL (US);
Other;
Abstract
A turn-on tuning system comprising threaded tuning rims or drumheads with threaded frames in place of lugs used by conventional drums, and a spherical acoustic chamber to provide both acoustic and visual improvements over prior art instruments. The tuning system secures a drumhead to a drum by either sandwiching the drumhead between a threaded drum shell and a threaded rim or by directly attaching the drumhead to the threaded drum shell via a threaded frame integral with the drumhead. The drum is tuned by rotating the rim or drumhead to increase pressure on the drumhead. The spherical acoustic chamber, which may be attached to or in place of a traditional drum shell, provides enhanced audio quality and may also provide housing for electronic equipment or acoustic elements which may be held within the spherical chamber. The spherical acoustic chamber also provides numerous visual improvements.