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:
Sep. 18, 2007
Filed:
Apr. 17, 2006
Brian Pangrle, Spokane, WA (US);
Brian Pangrle, Spokane, WA (US);
Other;
Abstract
An exemplary retainer ring for a head of an acoustic drum can produce a visual display that allows an observer to visualize timing associated with percussive sound. An exemplary retainer ring includes a vertical wall disposed at a radius about a central axis and a laser diode module that includes a lens to emit visible radiation as a fan-beam. In such an exemplary retainer ring, the lens is positioned such that the fan-beam crosses the central axis and terminates as an arc in a groove in the vertical wall. When an object interrupts the fan-beam, the object reflects visible radiation of the fan-beam to thereby produce a visual display that allows an observer to visualize timing associated with percussive sound (e.g., sound produced by the object contacting a head of an acoustic drum). Various other exemplary arrangements, devices, systems, methods, etc., are also disclosed.