Arrowhead with inclined blade to impart spinning at target penetration

• US 6,171,206 B1
• Filed: 05/17/1997
• Issued: 01/09/2001
• Est. Priority Date: 05/17/1997
• Status: Expired due to Fees

• Current Assignee: Victor Jay Liechty II (Victor Jay Liechty)
• Original Assignee: Victor Jay Liechty II (Victor Jay Liechty)
• Inventors: Liechty, Victor Jay II
• Primary Examiner(s): Ricci, John A.
• Application Number:
  US08/858,096
• Time in Patent Office: 1,333 Days
• Field of Search: 473/578, 473/583, 473/584, 473/FOR.216, 473/FOR.221, 473/FOR.222
• US Class Current: 473/583
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads

Abstract

Blade-opening arrowheads having pivotal blades, wherein each blade is hingedly connected at one blade end to an arrowhead body by a hinge pin. Each blade may be disposed at an angle relative to the central axis of the arrowhead body. Each blade freely rotates in a plane from a retracted in-flight position to an open position when penetrating an object where the other opposing blade end rotates away from the arrowhead body such that the sharp cutting edges of the blades are exposed at a full cutting diameter when the blades are in the open position. When in the retracted position a blade is securely held selectively adjacent to the arrowhead body by frictional engagement from methods independent of, or not dependent upon, the use of an element or elements in addition to that individual cutting blade, its hinge pin and its blade slot.

Claims

1. A blade-opening arrowhead comprising:

(a) an elongated arrowhead body having a longitudinal axis;

(b) a blade having a first end and an opposing second end; and

(c) hinge means for pivotally connecting said second end of said blade to said arrowhead body to enable said blade to rotate between;

(i) a retracted position wherein said blade is positioned adjacent to said arrowhead body when said arrowhead body is in free flight; and

(ii) an open position wherein said first end of said blade is rotated away from said arrowhead body, said blade in said open position being oriented in a plane inclined relative to said longitudinal axis of said arrowhead body to impart spinning to said arrowhead body upon penetration of an object.

2. A blade-opening arrowhead as recited in claim 1, wherein said hinge means comprises:

(a) an aperture extending through said second end of said blade; and

(b) a hinge pin mounted on said arrowhead body, said hinge pin extending through said aperture of said blade.

3. A blade-opening arrowhead as recited in claim 2, wherein when said longitudinal axis of said arrowhead body is aligned on a Y-axis, the longitudinal axis extending through said hinge pin is not parallel with a corresponding X-axis.

4. A blade-opening arrowhead as recited in claim 3, wherein the longitudinal axis extending through said hinge pin is perpendicular to said plane said blade is oriented in when said blade is in said open position.

5. A blade-opening arrowhead comprising:

(a) an elongated arrowhead body having a longitudinal axis and a receiving slot formed thereon, said receiving slot being bounded by opposing first and second sidewalls each extending to an exposed exterior corner;

(b) a blade having a first end and an opposing second end, said second end having an aperture extending therethrough; and

(c) hinge means for pivotally connecting said second end of said blade to said arrowhead body to enable said blade to rotate between;

(i) a retracted position wherein said blade is positioned adjacent to said arrowhead body within said receiving slot; and

(ii) an open position wherein said first end of said blade is rotated away from said arrowhead body, said blade in said open position being oriented in a plane inclined relative to said longitudinal axis of said arrowhead body to impart spinning to said arrowhead body upon penetration of an object, said hinge means comprising a hinge pin mounted on said arrowhead body and extending through said aperture of said blade, said hinge pin having a first end attached to said first sidewall of said receiving slot at a first intersecting location and a second end attached to said second sidewall of said receiving slot at a second intersecting location.

6. A blade-opening arrowhead as recited in claim 5, wherein the shortest distance between said first intersecting location and said exterior corner of said first sidewall is longer than the shortest distance between said second intersecting location and said exterior corner of said second sidewall.

7. A blade-opening arrowhead as recited in claim 5, wherein the shortest distance between said first intersecting location and said longitudinal axis of said arrowhead body is longer than the shortest distance between said second intersecting location and said longitudinal axis of said arrowhead body.

8. A blade-opening arrowhead as recited in claim 5, wherein said receiving slot is disposed in the plane inclined relative to said longitudinal axis of said arrowhead body.

9. A blade-opening arrowhead as recited in claim 5, further comprising a plurality of blades each having a second end hingedly attached to said elongated body such that each of said plurality of blades can selectively move between a retracted and open position.

10. A blade-opening arrowhead comprising:

(a) an elongated arrowhead body having a longitudinal axis;

(b) a first blade having a first end and an opposing second end, said second end of said first blade being hingedly mounted to said elongated body such that said first blade in said open position being oriented in a first plane inclined relative to said longitudinal axis of said arrowhead body such that said first blade slopes to the left when viewed from said second end thereof; and

(c) a second blade having a first end and an opposing second end, said second end of said second blade being hingedly mounted to said elongated body such that said second blade can be selectively moved between a retracted position and an open position, said second blade in said open position being oriented in a second plane inclined relative to said longitudinal axis of said arrowhead body such that said second blade slopes to the right when view from said second end thereof.

11. A blade-opening arrowhead as recited in claim 10, further comprising an elongated receiving slot formed on said arrowhead body, said first blade being received within said receiving slot when in said retracted position.

12. A blade-opening arrowhead as recited in claim 11, wherein said receiving slot is oriented in a plane inclined relative to said longitudinal axis of said arrowhead body.

13. A blade-opening arrowhead as recited in claim 10, further comprising:

(a) an aperture extending through said second end of said first blade; and

(b) a hinge pin mounted to said arrowhead body, said hinge pin extending through said aperture of said first blade.

14. A blade-opening arrowhead as recited in claim 13, wherein when said longitudinal axis of said arrowhead body is aligned on a Y-axis, the longitudinal axis extending through said hinge pin is sloped relative to a corresponding X-axis.

15. A blade-opening arrowhead comprising:

(a) an elongated arrowhead body having a longitudinal axis;

(b) an elongated receiving slot formed on said arrowhead body, said receiving slot being oriented in a plane inclined relative to said longitudinal axis of said arrowhead body; and

(c) a blade having an attachment end rotatably mounted within said receiving slot such that said blade can be selectively rotated between a retracted position wherein said blade is received within said receiving slot and an open position, said blade being disposed in said plane inclined relative to said longitudinal axis of said arrowhead body when in said open position.

16. A blade-opening arrowhead as recited in claim 15, further comprising:

(a) an aperture extending through said attachment end of said blade; and

(b) a hinge pin having a first end and an opposing second end, said hinge pin extending through said aperture of said blade and being mounted to said arrowhead body.

17. A blade-opening arrowhead as recited in claim 16, wherein when said longitudinal axis of said arrowhead body is aligned on a Y-axis, the longitudinal axis extending through said hinge pin is sloped relative to a corresponding X-axis.

18. A blade-opening arrowhead as recited in claim 16, wherein said receiving slot comprises opposing sidewalls, said sidewalls comprising a first sidewall having said first end of said hinge pin attached thereto at a first intersecting location and a second sidewall having said second end of said hinge pin attached thereto at a second intersecting location, each said sidewall extending to a corresponding outside corner.

19. A blade-opening arrowhead as recited in claim 18, wherein the shortest distance between said first intersecting location and said exterior corner of said first sidewall is longer than the shortest distance between said second intersecting location and said exterior corner of said second sidewall.

20. A blade-opening arrowhead as recited in claim 18, where in the shortest distance between said first intersecting location and said longitudinal axis of said arrowhead body is longer than the shortest distance between said second intersecting location and said longitudinal axis of said arrowhead body.

21. A blade-opening arrowhead as recited in claim 15, further comprising a plurality of blades each having an attachment end hingedly attached to said elongated body such that each of said plurality of blades can selectively move between a retracted and open position.