Self centering nock
First Claim
Patent Images
1. A nock, comprising:
- a light source;
a first end comprising an opening configured to receive a string of at least one of a bow and a crossbow, wherein the first end allows the light source to transmit light through and beyond an external surface of the first end;
a structural support piece, that does not obstruct the opening, having a distal portion contacting the first end, anda substantially cylindrical shaped portion, extending from the structural support piece, comprising a grooved external surface, wherein at least a portion of an external diameter of the cylindrical shaped portion is configured to be disposed in and contact an internal surface of a bore of an arrow or a crossbow bolt.
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Accused Products
Abstract
A self-centering nock is provided for use in a well-balanced nock-arrow or nock-bolt assembly. The self-centering nock includes compliant projecting protrusions or compliant arms that are substantially rotationally symmetric about a cross section normal to a main axis of the self-centering nock. The compliant projecting protrusions or compliant arms may be received in bolts that have bores of differing internal dimensions.
59 Citations
21 Claims
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1. A nock, comprising:
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a light source; a first end comprising an opening configured to receive a string of at least one of a bow and a crossbow, wherein the first end allows the light source to transmit light through and beyond an external surface of the first end; a structural support piece, that does not obstruct the opening, having a distal portion contacting the first end, and a substantially cylindrical shaped portion, extending from the structural support piece, comprising a grooved external surface, wherein at least a portion of an external diameter of the cylindrical shaped portion is configured to be disposed in and contact an internal surface of a bore of an arrow or a crossbow bolt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A nock, comprising:
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a light source; a first end comprising a substantially U-shaped opening configured to receive a string of at least one of a bow and a crossbow, wherein the first end allows the light source to transmit light beyond an external surface of the first end; a structural support piece, that does not obstruct the U-shaped opening, having a distal portion contacting the first end, and a substantially cylindrical shaped portion, extending from the structural support piece, comprising a grooved external surface, wherein at least a portion of an external diameter of the cylindrical shaped portion is configured to be disposed in and contact an internal surface of a bore of an arrow or a crossbow bolt. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A system, comprising:
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a crossbow bolt having a bore; and a nock that includes i) a light source;
ii) a first end comprising a substantially U-shaped opening configured to receive a string of a crossbow, wherein the first end allows the light source to transmit light through and beyond an external surface of the first end;
iii) a structural support piece, that does not obstruct the U-shaped opening, having a distal portion contacting the first end, and iv) a substantially cylindrical shaped portion, extending from the structural support piece, comprising a grooved external surface, wherein at least a portion of an external diameter of the cylindrical shaped portion is configured to be disposed in and contact an internal surface of the bore.
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Specification