Tubular restraint for broadhead with deployable cutting blades

• US 5,112,063 A
• Filed: 12/21/1990
• Issued: 05/12/1992
• Est. Priority Date: 12/21/1990
• Status: Expired due to Fees

• Current Assignee: Pucketts Blood Trailers Broadhead Incorporated
• Original Assignee: Pucketts Blood Trailers Broadhead Incorporated
• Inventors: Puckett, Riley
• Primary Examiner(s): Coven, Edward M.
• Assistant Examiner(s): Stoll, William E.
• Application Number:
  US07/632,332
• Time in Patent Office: 508 Days
• Field of Search: 273/416, 273/418, 273/419, 273/421, 273/422
• US Class Current: 473/583
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads

Abstract

A broadhead (10) having deployable cutting blades (22) (24) is kept in the retracted position, wherein the blades (22) (24) have a slimmer profile, during the flight of an arrow by a tubular, external restraint (20) which fits over the body (16) of the broadhead (10). When the broadhead (10) impacts against an animal, the plunger (18), which is slidably mounted in the front of the body (16) is forced into the body (16) and causes the blades (22) (24) to be deployed out of the slots (12) (14). As the blades (24) are moved out of the slot (14), the tubular restraint (20) is cut from the body (16) by the cutting edge (26).

Claims

1. A broadhead, comprising:

a body having a top, a bottom, and a middle region, said bottom of said body being connectable to an arrow shaft, said middle region of said body defining a first outer perimeter measuring a first distance around said body at said middle region;

a pair of cutting blades which are deployable from opposite sides of said body at said middle region, each of said pair of cutting blades having first and second ends wherein a first end is close to said body when said pair of cutting blades are either in a retracted position or a deployed position but said second end is close to said body only when said cutting blades are in said retracted position and is extended away from said body when said pair of cutting blades are in said deployed position, each of said cutting blades having a cutting edge located between said first and second ends that is directed away from said body when said pair of cutting blades are in said retracted position, said cutting edges of said pair of cutting blades being includable in a second outer perimeter which is the same size or larger than said first outer perimeter and which measures a second distance that includes the distance around said body at said middle region plus the distance around said cutting blades if they extend beyond said first outer perimeter that is when said cutting blades are in said retracted position;

means for moving said pair of cutting blades from said retracted position to said deployed position; and

a cuttable tubular restraining device having an internal diameter approximately equal to said first outer perimeter and being located around said first outer perimeter to hold said pair of cutting blades in said retracted position, said cuttable tubular restraining device being made of a material and having dimensions which can withstand forces that occur when an arrow is shot or in flight which would otherwise cause said cutting edges of said pair of cutting blades to cut through said cuttable tubular restraining device but which allows said cutting edges of said pair of cutting blades to cut through said cuttable tubular restraining device upon impact of the broadhead with a target.

2. A broadhead as recited in claim 1 wherein said means for moving said cutting blades from said retracted position to said deployed position includes a plunger which extends beyond said top of said body and which is slidable within a bore in said body.

3. A broadhead as recited in claim 2 wherein said cutting blades are pivotally connected to said plunger.

4. A broadhead as recited in claim 1 wherein said tubular restraining device is made of a plastic material.

5. A broadhead as recited in claim 1 wherein said tubular restraining device is made of rubber material.

6. A broadhead as recited in claim 1 wherein said tubular restraining device is made of a paper material.

7. A broadhead as recited in claim 1 wherein said tubular restraining device is made of cardboard.