The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2012
Filed:
Mar. 14, 2011
Brian J. Adams, Vincennes, IN (US);
Jack Bowman, Henderson, KY (US);
Brian J. Adams, Vincennes, IN (US);
Jack Bowman, Henderson, KY (US);
Bear Archery, Inc., Evansville, IN (US);
Abstract
Magnetic expandable broadhead arrowheads and methods for magnetically holding the blades of broadhead arrowheads in the retracted position are disclosed. Embodiments include deployable cutting blades that are magnetically held in a retracted position during launch and flight and deploy outwardly upon impact with a target. Other embodiments include magnets where the force holding the cutting blades in the retracted position is localized adjacent either the deployable ends or the pivoting ends of the cutting blades. Still other embodiments include magnets adjacent to substantially the entire length of elongated cutting blades while the blades are in the retracted position. Alternate embodiments include elongated cutting blades that extend in a rearward direction when retracted and cutting blades that extend in a forward direction when retracted.