Double-action truss rod for stringed instruments
OwnerSteven W. Eddinger, Darlene F. Eddingerinventors
Life of this patent
Estimating the term…
Abstract
A truss rod for selectively bowing the neck of a stringed instrument includes a segment of round stock having a pair of threaded ends, one set of threads in a first thread direction, and the other set of threads in the reverse direction. Complementary threaded blocks are threaded onto these threaded ends, and the blocks are secured to a length of flat bar stock. A head bearing a socket is fixed to an end of the round stock, so that turning of the head turns the round stock. The reversed nature of the respective threaded ends causes the length of the portion of the round stock between the fixed blocks to either increase or decrease when the round stock is turned, which correspondingly causes the flat bar to bend either in or out.
Claims6
A truss rod for selectively bowing the neck of a stringed instrument, said truss rod comprising:
- a segment of round stock having a pair of threaded ends, one set of threads in a first thread direction, and the other set of threads in the reverse thread direction;
- complementary threaded blocks threaded onto said threaded ends;
- a length of bar stock secured to said threaded blocks;
- and
- a head fixed to an end of said round stock, said head bearing a socket, so that turning of said head turns said round stock, and the reversed nature of the respective threaded ends of said round stock causes the portion of said round stock between said threaded blocks to either increase or decrease in length when said round stock is turned, and causes said bar stock to bend.
A truss rod for selectively bowing the neck of a stringed instrument, said truss rod comprising:
- a segment of round stock having a pair of threaded ends, one set of threads in a first thread direction, and the other set of threads in the reverse thread direction, said segment of round stock bearing a segment of material to prevent said truss rod's resonant frequency from generating unwanted sounds;
- complementary threaded blocks threaded onto said threaded ends;
- a length of bar stock secured to said threaded blocks;
- and
- a head fixed to an end of said round stock, so that turning of said head turns said round stock, and the reversed nature of the respective threaded ends of said round stock causes the portion of said round stock between said threaded blocks to either increase or decrease in length when said round stock is turned, and causes said bar stock to bend.
Dependencies are inferred from the claim text.