Adjustable neck stiffener for stringed musical instruments

Patent No. 9,355,619

Issued: May 31, 2016
Filed: June 20, 2014
Term Extension: 42 days

Inventors: Allred, III; Jimmie B. (Skaneateles, NY), Griswold; Michael (Syracuse, NY)
Assignee: Allred & Associates Inc. (Elbridge, NY)


An adjustable musical instrument neck stiffener includes a beam fabricated by embedding uni-directional material only at the upper portion of the beam, and constrained by braid or bias weave material. In a preferred embodiment, the uni-directional layers are preferably made from carbon fiber tow, cloth, or pultruded carbon fiber and the braid or bias weave material is made of carbon fibers. To reduce weight, the middle section of the beam is preferably hollow. A threaded rod and threaded sleeve provide a way to adjust the neck stiffener beam curvature so that it is straight while under string tension.

Reference to Related Applications

This application claims one or more inventions which were disclosed in Provisional Application No. 61/837,951, entitled "ADJUSTABLE NECK STIFFENER FOR MUSICAL INSTRUMENTS", filed Jun. 21, 2013.

This application is also a continuation-in-part application of application Ser. No. 13/446,456, filed Apr. 13, 2012, entitled "NECK STIFFENER FOR STRINGED MUSICAL INSTRUMENTS", which claims one or more inventions which were disclosed in Provisional Application No. 61/474,916, entitled "NECK STIFFENER FOR STRINGED MUSICAL INSTRUMENTS", filed Apr. 13, 2011 and Provisional Application No. 61/535,051, entitled "NECK STIFFENER FOR STRINGED MUSICAL INSTRUMENTS", filed Sep. 15, 2011.

This application is also a continuation-in-part application of application Ser. No. 13/104,375, filed May 10, 2011, entitled "ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM", which claims one or more inventions which were disclosed in Provisional Application No. 61/333,320, filed May 11, 2010, entitled "ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM", Provisional Application No. 61/350,550, filed Jun. 2, 2010, entitled "ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM" and Provisional Application No. 61/373,513, filed Aug. 13, 2010, entitled "ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM", and which is a continuation-in-part application of application Ser. No. 12/646,026, filed Dec. 23, 2009, entitled "ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM, now U.S. Pat. No. 8,448,748, issued May 28, 2013, which claims one or more inventions which were disclosed in Provisional Application No. 61/141,402, filed Dec. 30, 2008, entitled "DUAL-USE MODULAR CARBON-FIBER LADDER AND BRIDGE" and Provisional Application No. 61/151,327, filed Feb. 10, 2009, entitled "ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM".

The benefit under 35 USC 119(e) of the United States provisional applications is hereby claimed, and the aforementioned applications are hereby incorporated herein by reference.


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