US2025362105A1PendingUtilityA1

Bow with Reduced Draw Force

Individually held — no corporate assignee on recordPriority: May 16, 2022Filed: May 15, 2023Published: Nov 27, 2025

Est. expiryMay 16, 2042(~15.8 yrs left)· nominal 20-yr term from priority

Inventors:Jonathan B. Gabel

F41B 5/0094F41B 5/0052F41B 5/0026F41B 5/0031F41B 5/14

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References

Claims

Abstract

A traditional bow, includes a riser with an upper and lower end. A first limb member provided at the upper end of the riser, the first limb member includes a first and second body with co-planar surfaces and proximal and distal ends. the proximal ends of the first limb member are coupled to the upper end of the riser. A first tip couples the distal ends of the first and second bodies and includes a first notch extending radially from the first tip. A first longitudinal slot extends between the first and second bodies at least partially between the upper end of the riser and the first tip. A second limb member provided at the lower end of the riser, the second limb member includes a third and fourth body with co-planar surfaces and proximal and a distal ends, the proximal ends of the second limb member are coupled to the lower end of the riser. A second tip couples the distal ends of the third and fourth bodies and includes a second notch extending radially from the second tip. A second longitudinal slot extends between the third and fourth bodies at least partially between the lower end of the riser and the second tip. A bowstring is operatively coupled between the first limb notch and second limb notch and passes through the first and second longitudinal slots. The first and second limb notches pass through three or more states as the bowstring is drawn from an initial resting position to a maximum draw length. The first and second notches being furthest apart at a first state. closest together in an intermediate state, and at a position between the furthest and closest position in a final state. A peak draw force occurs at an intermediate draw length and a reduced draw force occurs at a maximum draw length.

Claims

exact text as granted — not AI-modified

What is claimed is: 
     
         1 . A traditional bow, comprising:
 a riser with an upper and lower end;   a first limb member including;
 a first and second body each with a distal end and a proximal end 
    wherein said proximal end of the first body and said proximal end of    the second body are coupled to said upper end of the riser;
 wherein said first and second bodies have co-planer surfaces; and 
 a first tip that couples said distal end of the first body and said distal end of the second body; 
 a first notch radially extending from said first tip; 
 a first longitudinal slot between said first and second bodies extending at least partially between the upper end of the riser and the first tip; and 
   a second limb member including:
 a third and fourth body each with a distal end and a proximal end where said proximal end of the third body and said proximal end of the fourth body is coupled to said lower end of the riser; 
 wherein said third and fourth bodies have co-planer surfaces; and 
 a second tip that couples said distal end of the third body and said distal end of the fourth body; 
 a second notch radially extending from said second tip; 
    a second longitudinal slot between said third and fourth bodies extending at least partially between the lower end of the riser and the second tip;   a bowstring operatively coupled to said first notch and said second notch and   
       passes through said first longitudinal slot and said second longitudinal slot; and
 whereas said first and second notches pass through three or more states as said bowstring is drawn from an initial resting position to a maximum draw length position; and 
 whereas the first and second notches are furthest apart at a first state, closest to each other at an intermediate state, and at a position between said furthest position and said closest position in a final state. 
 
     
     
         2 . The bow of  claim 1 , wherein a straight line distance D is defined between a point where said bowstring is coupled to said first and second notches; and
 said straight line distance D, during the draw of said bowstring from the initial state to the final state, is less than the straight line distance D in the initial state.   
     
     
         3 . The bow of  claim 1 , wherein the draw of said bowstring defines an inside angle near the center of the bowstring; and
 said inside angle is 180 degrees at the initial state and is less than 180 degrees during the draw from said initial resting position to said maximum draw length position.   
     
     
         4 . The bow of  claim 1 , wherein the first, second, third and fourth bodies comprise three or more body segments. 
     
     
         5 . The bow of  claim 4 , wherein the body segment closest to the riser is thicker and wider in construction than the last body segment closest to the first and second notches. 
     
     
         6 . The bow of  claim 1 , wherein the proximal end of the first, second, third and fourth bodies are less flexible than the distal end of said first, second, third and fourth bodies. 
     
     
         7 . The bow of  claim 1 , wherein the riser is operatively coupled to one or more extension members that project proximally relative to said riser. 
     
     
         8 . The bow of  claim 7 , wherein the extensions define a pocket and are operatively coupled to one or more attachment mechanisms for securing the first and second limb members. 
     
     
         9 . The bow of  claim 1 , where a peak draw force occurs at an intermediate state and a reduced draw force occurs at a final state. 
     
     
         10 . A traditional bow, comprising:
 a riser with a upper and lower end;   a first limb member including;
 a first and second body with a distal end and a proximal end; 
 wherein said proximal end of the first body and said proximal end 
    of the second body are coupled to said upper end of the riser;
 wherein said first and second bodies have co-planer surfaces; 
 and 
 a first tip that couples said distal end of the first body and said distal end of the second body; 
 a first notch radially extending from said first tip; 
 a first longitudinal slot between said first and second bodies extending at least partially between the upper end of the riser and the first tip; and 
   a second limb member including:
 a third and fourth body each with a distal end and a proximal end where said proximal end of the third body and said proximal end of the fourth body is coupled to said lower end of the riser; 
 wherein said third and fourth bodies have co-planer surfaces; and 
 a second tip that couples said distal end of the third body and said distal end of the fourth body; 
 a second notch radially extending from said second tip; 
 a second longitudinal slot between said third and fourth bodies extending at least partially between the riser and the second tip; 
 and 
   a bowstring operatively coupled to said first notch and said second notch and   
       passes through said first longitudinal slot and said second longitudinal slot; and
 one or more stiffening elements surrounding at least a portion of the length 
 
       of said bowstring that passes through said first and second longitudinal slots; and
 whereas said first and second notches pass through three or more states as said bowstring is drawn from an initial resting position to a maximum draw length position; and 
 whereas the first and second notches are furthest apart at a first state, closest to each other at an intermediate state, and at a position between said furthest position and said closest position in a final state. 
 
     
     
         11 . The bow of  claim 10 , wherein a straight line distance D is defined between a point where said bowstring is coupled to said first and second notches; and
 said straight line distance D, during the draw of said bowstring from the initial state to the final state, is less than the straight line distance D in the initial state.   
     
     
         12 . The bow of  claim 10  wherein the draw of said bowstring defines an inside angle near the center of the bowstring; and
 said inside angle is 180 degrees at the initial state and is less than 180 degrees during the draw from said initial resting position to said maximum draw length position. 
 
     
     
         13 . The bow of  claim 10 , wherein the first, second, third and fourth bodies comprise three or more body segments. 
     
     
         14 . The bow of  claim 13 , wherein the body segment closest to the riser is thicker and wider in construction than the last body segment closest to the first and second notches. 
     
     
         15 . The bow of  claim 10 , wherein the proximal end of the first, second, third and fourth bodies are less flexible than the distal end of said first, second, third and fourth bodies. 
     
     
         16 . The bow of  claim 10 , wherein the riser is operatively coupled to one or more extension members that project proximally relative to said riser. 
     
     
         17 . The bow of  claim 16 , wherein the extensions define a pocket and are operatively coupled to one or more attachment mechanisms for securing the first and second limb members. 
     
     
         18 . The bow of  claim 10 , where a peak draw force occurs at an intermediate state and a reduced draw force occurs at a final state. 
     
     
         19 . A traditional bow, comprising:
 a riser with a upper and lower end;   a first limb member including;
 a first and second body with a distal end and a proximal end; 
 wherein said proximal end of the first body and said proximal end of the second body are coupled to said upper end of the riser; 
 wherein said first and second bodies are splayed and have non-planer surfaces; and 
 a first tip that couples said distal end of the first body and said distal end of the second body; 
 a first notch radially extending from said first tip; 
 a first longitudinal slot between said first and second bodies extending at least partially between the upper end of the riser and the first tip; and 
   a second limb member including:
 a third and fourth body with a distal end and a proximal end; 
 wherein said proximal end of the third body and said proximal end of the fourth body is coupled to said lower end of the riser; and 
 wherein said third and fourth bodies are splayed and have non-planer surfaces; 
 a second tip that couples said distal end of the third body and said distal end of the fourth body; 
 a second notch radially extending from said second tip; 
 a second longitudinal slot between said third and fourth bodies extending at least partially between the riser and the second tip; 
   and   a bowstring operatively coupled to said first notch and said second notch and   
       passes through said first longitudinal slot and said second longitudinal slot; and
 whereas said first and second notches pass through three or more states as said bowstring is drawn from an initial resting position to a maximum draw length position; and 
 whereas the first and second notches are furthest apart at a first state, closest to each other at an intermediate state, and at a position between said furthest position and said closest position in a final state. 
 
     
     
         20 . The bow of  claim 19 , wherein a straight line distance D is defined between a point where said bowstring is coupled to said first and second notches; and
 said straight line distance D, during the draw of said bowstring from the initial state to the final state, is less than the straight line distance D in the initial state.   
     
     
         21 . The bow of  claim 19 , wherein the draw of said bowstring defines an inside angle near the center of the bowstring; and
 said inside angle is 180 degrees at the initial state and is less than 180 degrees during the draw from said initial resting position to said maximum draw length position.   
     
     
         22 . The bow of  claim 19 , wherein the first, second, third and fourth bodies comprise three or more body segments. 
     
     
         23 . The bow of  claim 22 , wherein the body segment closest to the riser is thicker and wider in construction than the last body segment closest to the first and second notches. 
     
     
         24 . The bow of  claim 19 , wherein the proximal end of the first, second, third and fourth bodies are less flexible than the distal end of said first, second, third and fourth bodies. 
     
     
         25 . The bow of  claim 19 , wherein the riser is operatively coupled to one or more extension members that project proximally relative to said riser. 
     
     
         26 . The bow of  claim 25 , wherein the extensions define a pocket and are operatively coupled to one or more attachment mechanisms for securing the first and second limb members. 
     
     
         27 . The bow of  claim 19 , where a peak draw force occurs at an intermediate state and a reduced draw force occurs at a final state.

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