Patent No. US10890421 (titled "Multi-Functional Broadhead Fixed And Mechanical") was filed by Evolution Outdoors on Dec 20, 2019.
’421 is related to the field of archery, specifically arrowheads or broadheads used for hunting. Broadheads are attached to the end of an arrow and are designed to inflict significant damage to game animals. Traditionally, bow hunters have had to choose between fixed-blade broadheads, which offer greater penetration but can be less aerodynamic, and mechanical broadheads, which are more aerodynamic in flight but may lose energy upon impact as the blades deploy.
The underlying idea behind ’421 is to create a multifunctional broadhead that can be easily switched between a fixed-blade configuration and a mechanical configuration using the same main body, or ferrule. This allows a hunter to adapt to different hunting regulations or game species without having to switch to a completely different broadhead, thus maintaining consistent arrow flight characteristics.
The claims of ’421 focus on a broadhead comprising a ferrule with slots , a screw/pin, and a media hole, blades that engage the slots and are secured by the screw/pin, and a base. The blades can be configured in a fixed position (fixed-blade mode) or in a retracted position that deploys upon impact (mechanical mode). The mode is user-selectable, and the blades are held in the retracted position by a media inserted into the media hole.
In practice, the user can choose between fixed or mechanical blades and secure them to the ferrule using the screw/pin. For the mechanical configuration, a piece of media (e.g., nylon or polymer) is inserted into the media hole to create a friction fit that holds the blades in the retracted position during flight. Upon impact with a target, the force overcomes the friction, and the blades pivot outward to their deployed position.
This design differentiates itself from existing broadheads by providing a true convertible system . Instead of being limited to either a fixed or mechanical design, the user can quickly and easily change the blade configuration to suit their needs. This is achieved through the specific design of the ferrule, which accommodates both fixed and mechanical blades, and the use of a simple screw/pin and media hole mechanism for securing and releasing the mechanical blades.
In the late 2010s when ’421 was filed, broadheads for archery arrows were typically implemented using either fixed blades or mechanical blades. At a time when fixed-blade broadheads maintained blades in a rigid, extended position, mechanical broadheads commonly relied on blades that deployed upon contact with a target. When hardware or software constraints made the transition between fixed and mechanical configurations non-trivial, hybrid variations existed but were classified as mechanical.
Claims 1-20 were pending. Claims 1-8, 11-13, 16, and 18-20 were rejected under 35 U.S.C. 102(a)(2) as being anticipated by Mizek 5,941,784. Claims 9, 10, 14, 15, & 17 were rejected under 35 U.S.C. 103 as being unpatentable over Mizek. The prosecution record does NOT describe the technical reasoning or specific claim changes that led to allowance.
This patent includes 20 claims, with claims 1, 18, and 19 being independent. The independent claims are directed to a multifunctional arrow broadhead, a method of forming the broadhead, and a multifunctional arrow broadhead system. The dependent claims generally elaborate on and refine the features and configurations described in the independent claims.
Definitions of key terms used in the patent claims.
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