Games using tangible projectile – Projectile – per se; part thereof or accessory therefor – Arrow – dart – or shuttlecock; part thereof
Reexamination Certificate
2000-03-23
2001-11-20
Ricci, John A. (Department: 3712)
Games using tangible projectile
Projectile, per se; part thereof or accessory therefor
Arrow, dart, or shuttlecock; part thereof
Reexamination Certificate
active
06319161
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a hunting arrowhead and to arrowhead blades configured to produce a large size cutting hole in the animal to promote profuse bleeding.
BACKGROUND OF THE INVENTION
Hunting arrowheads having multiple metal cutting blades referred to commonly as broadheads are known and described in U.S. Pat. Nos. 2,874,968; 3,604,708; 3,897,062; 4,534,568; 4,565,377; 5,257,809; and 5,911,640. Some hunting arrowheads have been employed to provide a cutting pattern in the animal's body to promote profuse bleeding. Various blade configurations have been tried to this end.
An object of the invention is to provide arrowhead blades with a blade configuration effective collectively to provide a large generally circular cut in the animal's body when the arrowhead penetrates the animal's body to promote profuse bleeding from the wound and a quick kill.
Another object of the invention is to provide an arrowhead with blades that improve aerodynamic arrow flight and reduces windage and elevation errors.
Still another object of the invention is to provide an improved method of making such arrowhead blades with the desired configuration.
SUMMARY OF THE INVENTION
An arrowhead pursuant to an embodiment of the invention includes a penetrating tip at a leading end, an elongated slotted member having plurality of axially extending slots, and a plurality of the cutting blades with an axially extending base of each blade received in a respective slot. The cutting edges of the blades extend spirally in the same direction about the arrowhead and overlap circumferentially in a manner to collectively define a generally circular cutting envelope when the arrowhead rotates in flight.
In another embodiment of the invention, a blade for an arrowhead is provided and includes an elongated, axially extending base adapted to be received in a slotted member of the arrowhead and a spiral cutting blade edge intersecting the base proximate the forward end. The blade includes a rear end having a circumferentially extending rear base defined by a radius along its length between the axial-extending base and the spiral cutting edge at their rear ends. The spiral cutting edge extends in a circular arc along its length when viewed in end elevation looking at the forward end.
The invention provides a method of making the cutting blade from a one-piece metallic sheet by a unique combination of bending steps to impart the desired features to the cutting blade.
REFERENCES:
patent: D. 184538 (1959-03-01), Santry
patent: 2874968 (1959-02-01), Zielinski
patent: 3604708 (1971-09-01), Brozina
patent: 3897062 (1975-07-01), Christensen
patent: 4502692 (1985-03-01), Humphrey
patent: 4534568 (1985-08-01), Tone
patent: 4565377 (1986-01-01), Troncoso, Jr. et al.
patent: 5257809 (1993-11-01), Carrizosa
patent: 5911640 (1999-06-01), Breitwieser et al.
Martin Scott
Martinez Fermin
LandOfFree
Arrowhead and method of making does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arrowhead and method of making, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrowhead and method of making will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2580928