Patent 7955201 was granted and assigned to New Archery Products Corp on June, 2011 by the United States Patent and Trademark Office.
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.