Weapon vibration dampening system and method

Patent metadata

Field	Value
Publication number	US-10480895-B2
Application number	US-201816038677-A
Country	US
Kind code	B2
Filing date	Jul 18, 2018
Priority date	Jul 19, 2017
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

A stock for a weapon, such as a crossbow stock, that includes one or more central dampeners, such as first, second, and third central dampeners, and/or one or more component dampeners, such as first, second, and third component dampeners, that function to reduce vibrations transmitted through the stock as a result of weapon firing. The central and/or component dampeners may be positioned in the stock's foregrip section, pistol grip section, crank cocking device section, thumb grip section, rearward end section, and cheek rest section.

First claim

What is claimed is:

1. A crossbow stock comprising:
a forward end;
a rearward end;
one or more body plates interconnecting the forward and rearward ends;
a first central dampener operatively engaging the one or more body plates, the first central dampener reducing a vibration transmitted through the one or more body plates when a crossbow configured with the crossbow stock is fired;
wherein the one or more body plates include a foregrip section configured to accommodate a foregrip, and wherein the first central dampener operatively engages the one or more body plates at the foregrip section;
wherein the one or more body plates includes a left-side plate and a right-side plate extending longitudinally parallel to one another between the forward end and the rearward end; wherein the first central dampener is C-shaped and includes a top, a bottom, a first side, and a second side, the first and second sides interconnecting the top and bottom; and wherein the first side of the first central dampener operatively engages the left-side plate and the right side of the first central dampener operatively engages the right-side plate.

2. The crossbow stock of claim 1 , wherein the first central dampener is friction fit between the left-side and right-side plates.

3. The crossbow stock of claim 1 , wherein the first central dampener is composed of a thermoplastic elastomer or a rubber.

4. The crossbow stock of claim 1 , wherein the one or more body plates include a crank cocking device section configured to accommodate a crank cocking device for cocking a bowstring of the crossbow into a firing position; and wherein the crossbow stock further comprises a second central dampener operatively engaging the one or more body plates at the crank cocking device section.

5. The crossbow stock of claim 4 , wherein the second central dampener comprises a dampener component assembly operatively engaging the one or more body plates, the dampener component assembly including a first dampener component and a second dampener component operatively affixed to each other.

6. The crossbow stock of claim 5 , wherein the first and second dampener components each includes a forward portion, a rearward portion, and a central bore extending therethrough, the forward portion having an enlarged outer diameter relative to an outer diameter of the rearward portion, the rearward portion being configured with a plurality of lobe extensions and a plurality of recessed areas, each of the recessed areas being positioned between a pair of lobe extensions.

7. The crossbow stock of claim 6 , wherein each of the lobe extensions and each of the recessed areas are wedge shaped.

8. The crossbow stock of claim 6 , wherein the crank cocking device section includes a first opening extending through the one or more body plates of the crossbow stock, the second central dampener assembly is operatively positioned within the first opening and configured so that the forward portion of the first dampener component faces external to a left-side of the crossbow stock, the forward portion of the second dampener component faces external to a right-side of the crossbow stock, the rearward portion of the first dampener component faces internal to the left-side of the crossbow stock, the rearward portion of the second dampener component faces internal to the right-side of the crossbow stock, and the plurality of lobe extensions of the rearward portion of the first dampener component are operatively accommodated within the plurality of recessed areas of the rearward portion of the second dampener component and the plurality of lobe extensions of the rearward portion of the second dampener component are operatively accommodated within the plurality of recessed areas of the rearward portion of the first dampener component.

9. The crossbow stock of claim 8 , wherein one or more bolts are positioned within the central bores of the first and second dampener components to operatively secure the second central dampener assembly to the one or more body plates.

10. The crossbow stock of claim 9 , wherein the one or more bolts comprises a first bolt and a second bolt, the first bolt being operatively positioned within the central bore of the first dampener component, the second bolt being operatively positioned with the central bore of the second dampener component, the first and second bolts each including an internal end that operatively engages one another.

11. The crossbow stock of claim 10 , wherein the internal ends of the first and second bolts are threadedly engaged together.

12. The crossbow stock of claim 4 , wherein the second central dampener is composed of a thermoplastic resin or a rubber.

13. The crossbow stock of claim 4 , wherein the crossbow stock further comprises a third central dampener operatively engaging the one or more body plates at the crank cocking device section.

14. The crossbow stock of claim 13 , wherein the third central dampener includes an elongated central portion, a first end shoulder, a first circumferential groove extending between the elongated central portion and the first end shoulder, a second end shoulder, a second circumferential groove extending between the elongated central portion and the second end shoulder, and a central bore extending through the third central dampener, the elongated central portion having an outer diameter greater than an outer diameter of the first and second end shoulders and an outer diameter of the first and second circumferential grooves, the outer diameter of the first and second circumferential grooves being less than the outer diameter of the first and second end shoulders.

15. The crossbow stock of claim 14 , wherein the crack cocking device section includes a second opening extending through the one or more body plates of the crossbow stock and comprising a left-side opening in the left-side of the crossbow stock and a right-side opening in the right-side of the crossbow stock, the third central dampener assembly being operatively positioned within the second opening and configured so that the elongated central portion is operatively positioned between the left-side and the right-side of the crossbow stock, the first circumferential groove operatively engages the left-side opening with first end shoulder extending external to left-side of the crossbow stock, the second circumferential groove operatively engages the right-side opening with the second end shoulder extending external to the right-side of the crossbow stock.

16. The crossbow stock of claim 15 , wherein the one or more body plates includes a left-side plate defining the left-side of the crossbow body and a right-side plate defining the right-side of the crossbow body; wherein the left-side plate and the right-side plate extend longitudinally parallel to one another between the forward end and the rearward end; and wherein the third central dampener is friction fit between the left-side and right-side plates.

17. The crossbow stock of claim 13 , wherein the third central dampener is composed of a thermoplastic resin or a rubber.

18. A crossbow stock comprising:
a forward end;
a rearward end;
one or more body plates interconnecting the forward and rearward ends;
a first axis member operatively secured to the one or more body plates at the rearward end;
a first component dampener operatively secured to the first axis member, the first component dampener being configured to accommodate a butt plate of a crossbow configured with the crossbow stock, the first component dampener reducing a vibration transmitted

Assignees

• Barnett Outdoors Llc

Inventors

• Barnett David A

Classifications

• F41B5/1426 Primary

  Bow stabilisers or vibration dampers · CPC title

• F41B5/12

  Crossbows · CPC title

• F41C27/22

  Balancing or stabilising arrangements {on the gun itself, e.g. balancing weights} · CPC title