Spin element for arrow or bolt
First Claim
Patent Images
1. An apparatus for rotating a shaft of at least one of an arrow shaft or a bolt shaft during a flight, the apparatus comprising:
- an element mountable in a fixed position with respect to the shaft, the element comprising a female receiver including an inner diameter that is less than an outer diameter of the shaft; and
at least one airflow resistor projecting outward from the element and including a lateral surface inclined or declined toward a forward end of the element,wherein the element is mountable at a forward end of the shaft and the female receiver accepts an arrowhead.
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Accused Products
Abstract
An arrow element, such as an insert and/or sleeve, mounted with respect to a shaft with at least one airflow resistor projecting outward from the insert to impart rotational spin about a longitudinal axis or spin axis arrow during flight, to increase aerodynamic performance and stability of the arrow shaft, and to improve arrow flight accuracy.
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Citations
25 Claims
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1. An apparatus for rotating a shaft of at least one of an arrow shaft or a bolt shaft during a flight, the apparatus comprising:
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an element mountable in a fixed position with respect to the shaft, the element comprising a female receiver including an inner diameter that is less than an outer diameter of the shaft; and at least one airflow resistor projecting outward from the element and including a lateral surface inclined or declined toward a forward end of the element, wherein the element is mountable at a forward end of the shaft and the female receiver accepts an arrowhead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for rotating a shaft of at least one of an arrow shaft or a bolt shaft during a flight, the apparatus comprising:
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an element mountable in a fixed position with respect to the shaft, the element comprising a female receiver including an inner diameter that is less than an outer diameter of the shaft; and at least one airflow resistor projecting outward from the element and including a lateral surface inclined or declined toward a forward end of the element, wherein the element is mountable at a rearward end of the shaft. - View Dependent Claims (15)
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16. An apparatus for rotating a shaft of at least one of an arrow shaft or a bolt shaft during a flight, the apparatus comprising:
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an element mountable in a fixed position with respect to the shaft, the element comprising a female receiver including an inner diameter that is less than an outer diameter of the shaft; and at least one airflow resistor projecting outward from the element and including a lateral surface inclined or declined toward a forward end of the element, wherein the element is mountable between a forward end of the shaft and a reward end of the shaft. - View Dependent Claims (17, 18)
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19. An apparatus for rotating a shaft of at least one of an arrow shaft or a bolt shaft during a flight, the apparatus comprising:
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an element mountable in a fixed position with respect to the shaft, the element comprising a female receiver including an inner diameter that is less than an outer diameter of the shaft, wherein the element has a shaft portion that is engageable with a shaft receiver of the shaft and the female receiver accepts one of an arrowhead or a nock; and at least one airflow resistor projecting outward from the element and including a lateral surface inclined or declined toward a forward end of the element. - View Dependent Claims (20, 21)
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22. An apparatus for rotating a shaft of at least one of an arrow shaft or a bolt shaft during a flight, the apparatus comprising:
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at least one of an insert or a sleeve mountable in a fixed position with respect to the shaft, the at least one of the insert or the sleeve comprising a body including a female receiver; at least one airflow resistor projecting outward from and connected to the body, at least a portion of the at least one airflow resistor including a lateral surface inclined or declined toward a forward end of the insert or the sleeve to impart rotational spin to the arrow shaft or bolt shaft; and a body outer diameter of the body approximately equal to a shaft outer diameter of the shaft, or an inner diameter of the female receiver less than or approximately equal to the shaft outer diameter of the shaft. - View Dependent Claims (23, 24)
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25. An apparatus for rotating a shaft of at least one of an arrow shaft or a bolt shaft during a flight, the apparatus comprising:
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at least one of an insert or a sleeve mountable in a fixed position with respect to the shaft, the at least one of the insert or the sleeve comprising a body including a female receiver; at least one airflow resistor projecting outward from and connected to the body, wherein the at least one airflow resistor forms a helical flight or an airfoil; and a body outer diameter of the body approximately equal to a shaft outer diameter of the shaft, or an inner diameter of the female receiver less than or approximately equal to the shaft outer diameter of the shaft.
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Specification