Arrowed projectile structure

• US 4,900,038 A
• Filed: 03/07/1988
• Issued: 02/13/1990
• Est. Priority Date: 03/07/1988
• Status: Expired due to Fees

• Current Assignee: David Woods, Paul Czetto
• Original Assignee: David Woods, Paul Czetto
• Inventors: Woods, David, Czetto, Paul
• Primary Examiner(s): Grieb, William H.
• Assistant Examiner(s): Szczepanik, Valerie
• Application Number:
  US07/164,684
• Time in Patent Office: 708 Days
• Field of Search: 273/416, 273/420, 273/421, 273/422, 273/423, 273/80 A, 273/72 R, 273/72 A, 272/124
• US Class Current: 473/570
• CPC Class Codes: F42B 6/02 Arrows; Crossbow bolts; Harpoons for hand-held spring or air guns

Abstract

An arrowed projectile comprising an elongated linearly configured body having a hollow interior portion extending along the length thereof and preferably having an arrowed, closed first end and a second oppositely disposed second end which may have fletchings as in typical arrow construction. Kinetic energy transferring members are captivated within the hollow interior portion of the body and movable between a first portion adjacent the rear end upon initial flight of projectile from a projecting device and transferable towards one leading end to a second position of impact so as to cause successive bursts or thrusts occurring as the energy transferring slide member impacts upon the leading end of the body and one another.

Claims

1. An arrow device adapted to be propelled from a bow or like propelling device, said arrow device comprising:

an elongate, substantially straight body member including a point at one end therof;

said body member including an inner wall which defines a hollow interior portion extending along at least a majority of the length of the body member between said one end and the opposite end of said body member;

at least one energy transfer member disposed within said hollow interior portion of said body member so as to be slidably displaceable therealong between a rest position and an impact position;

retaining means, mounted at least partially within said body member, for retaining said energy transfer member in the rest position thereof when said arrow device is propelled by the propelling device and for releasing said energy transfer member upon impact of the point of the arrow with a target so that energy transfer member is slidably displaced along the hollow interior portion of the body member to the impact position thereof thereby creating a further impact against the target and thus increasing the penetration of the arrow into the target;

said energy transfer member comprising an elongate weight element including at least one longitudinal side wall portion substantially spaced from said inner wall of said body member so as to define an air passage along the length of the weight element to thereby prevent trapped air from hindering movement of said weight element,

said element including spacer means extending radially outward from an outer surface thereof for supporting said element in spaced relation to the inner wall of said body member which defines said hollow interior portion,

said spacer means comprising a plurality of elongated angularly spaced fins extending along the length of said element for slidably engaging said inner wall.

2. A device as in claim 1 wherein said retaining means comprises a magnet secured to said body member, and at least a portion of said energy transfer member being formed of a magnetic attractable material.

3. A device as in claim 2 wherein said portion of said energy transfer member comprises an end piece of magnetically attractable material secured to one end of said energy transfer member.

4. A device as in claim 3 wherein said magnet is fixedly secured to said body member at said opposite end thereof, said energy transfer member being slidingly displaced along substantially the entire length of said hollow interior portion upon disengagement thereof with said magnet into abutting engagement with a first end of said hollow interior portion located substantially adjacent said one end of said body member.

5. A device as in claim 4, wherein said element includes said magnetically attractable material formed at one end thereof nearest said magnet.

6. A device as in claim 5 wherein said retaining means further comprises a secondary magnet secured to an opposite end of said element relative to said one end thereof, said secondary magnet disposed in adjacent, attracting relation with magnetically attractable material secured to a next preceding element.

7. A device as in claim 4 wherein said at least one energy transfer member comprises a plurality of said elements each having a first end formed of a magnetically attractable material, each element of said plurality of said elements except a first one having a secondary magnet formed on a second end thereof.

8. A device as in claim 7 wherein a last one of said plurality of weight elements is removably attachable to said magnet secured to said body member and removably attachable to a next preceding element.

9. A device as in claim 8 wherein each of said plurality of weight elements are interconnected to one another.

10. An arrow device adapted to be propelled from a bow or like propelling device, said arrow device comprising:

an elongate, substantially straight body member including a point at one end thereof;

said body member including a hollow interior portion extending along at least a majority of the length of the body member between said one end and the opposite end of said body member;

a plurality of energy transfer members each disposed within said hollow interior portion of said body member so as to be slidably displaceable therealong between a rest position and an impact position;

retaining means, mounted at least partially within said body member, for retaining said energy transfer member in the rest position thereof when said arrow device is propelled by the propelling device and for releasing said energy transfer member upon impact of the point of the arrow with a target so that energy transfer member is slidably displaced along the hollow interior portion of the body member to the impact position thereof thereby creating a further impact against the target and thus increasing the penetration of the arrow into the target;

said energy transfer members comprising elongated weight elements each independently movable relative to one another along the length of said hollow interior portion, said retaining means including a first magnet fixedly secured to said body at said opposite end thereof and a plurality of further magnets equal in number to the number of weight elements, each of said plurality of further magnets being fixedly secured to a leading end of a corresponding weight element, each of said plurality of weight elements including one end thereof formed of a magnetically attractable material and disposed in engagement with the magnet on the next adjacent succeeding weight element, said first magnet being of greater magnetic strength than the other magnets of said plurality of magnets.

11. A structure as in claim 10 wherein each of said other magnets on said weight element are of progressively lesser strength.

12. An arrow device adapted to be propelled from a bow or like propelling device, said arrow device comprising:

an elongate, substantially straight body member including a point at one end thereof;

said body member including an inner wall which defines a hollow interior portion extending along at least a majority of the length of the body member between said one end and the opposite end of said body member;

at least one energy transfer member disposed within said hollow interior portion of said body member so as to be slidably displaceable therealong between a rest position and an impact position;

retaining means, mounted at least partially within said body member, for retaining said energy transfer member in the rest position thereof when said arrow device is propelled by the propelling device and for releasing said energy transfer member upon impact of the point of the arrow with a target so that energy transfer member is slidably displaced along the hollow interior portion of the body member to the impact position thereof thereby creating a further impact against the target and thus increasing the penetration of the arrow into the target;

said energy transfer member comprising an elongate weight element including at least one longitudinal side wall portion substantially spaced from said inner wall of said body member so as to define an air passage along the length of the weight element to thereby prevent trapped air from hindering movement of said weight element,

said device further comprising spacer means including a plurality of elongated angularly spaced fin elements extending along the length of said element for slidably engaging said inner wall.

13. An arrow device adapted to be propelled from a bow or like propelling device, said arrow device comprising:

an elongate, substantially straight body member including a point at one end thereof;

said body member including an inner wall which defines a hollow interior portion extending along at least a majority of the length of the body member between said one end and the opposite end of said body member;

at least one energy transfer member disposed within said hollow interior portion of said body member so as to be slidably displaceable therealong between a rest position and an impact position;

retaining means, mounted at least partially within said body member, for retaining said energy transfer member in the rest position thereof when said arrow device is propelled by the propelling device and for releasing said energy transfer member upon impact of the point of the arrow with a target so that energy transfer member is slidably displaced along the hollow interior portion of the body member to the impact position thereof thereby creating a further impact against the target and thus increasing the penetration of the arrow into the target;

said energy transfer member comprising an elongate weight element including at least one longitudinal side wall portion substantially spaced from said inner wall of said body member so as to define an air passage along the length of the weight element to thereby prevent trapped air from hindering movement of said weight element;

said weight element being of a triangular cross-sectional shape over substantially the entire length thereof, each corner of said element of triangular shape being disposed for sliding engagement relative to said inner wall.