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Spin element for arrow or bolt

  • US 20080113834A1
  • Filed: 11/10/2006
  • Published: 05/15/2008
  • Est. Priority Date: 11/10/2006
  • Status: Active Grant
First Claim
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1. An apparatus for rotating a shaft of at least one of an arrow shaft and a bolt shaft during a flight, the apparatus comprising:

  • an element comprising at least one of an insert, a sleeve, a ferrule, and a collar;

    the element mountable in a fixed position with respect to the shaft; and

    at least one airflow resistor projecting outward from the element.

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