String suppressor

• US 10,539,389 B2
• Filed: 03/08/2019
• Issued: 01/21/2020
• Est. Priority Date: 03/08/2018
• Status: Active Grant

• Current Assignee: Hunters Manufacturing Co Incorporated (Hunter's Manufacturing Company Incorporated)
• Original Assignee: Hunter's Manufacturing Company Incorporated
• Inventors: Bartels, Keith, Shaffer, Michael
• Primary Examiner(s): Ricci, John A
• Application Number:
  US16/296,431
• Publication Number:
  US 20190277596A1
• Time in Patent Office: 319 Days
• CPC Class Codes: F41B 5/123 Compound crossbows
• CPC Class Codes: F41B 5/1407 Bow-string silencing devices
• CPC Class Codes: F41B 5/1426 Bow stabilisers or vibration dampers

Abstract

Provided is a string suppressor for a crossbow comprising a first suppressor axis; a first suppressor plane containing the first suppressor axis; an elastomeric pad elongated along the first suppressor axis to define a first pad end, and a second pad end opposite the first pad end along the first suppressor axis; wherein the first pad end has a feature adapted for engagement with a crossbow riser; and wherein the second pad end has a string groove formed therein, the string groove being coextensive with the first suppressor plane, and has a cam groove formed therein, the cam groove being coextensive with the first suppressor plane, the cam groove being wide enough to provide a clearance fit with an associated cam.

Claims

1. A string suppressor for a crossbow comprising

a first suppressor axis;

a first suppressor plane containing the first suppressor axis;

an elastomeric pad elongated along the first suppressor axis to define

a first pad end, and

a second pad end opposite the first pad end along the first suppressor axis;

wherein the first pad end has a feature adapted for engagement with a crossbow riser; and

wherein the second pad end

has a string groove formed therein, the string groove being coextensive with the first suppressor plane, and

has a cam groove formed therein,

the cam groove being coextensive with the first suppressor plane,

the cam groove being wide enough to provide a clearance fit with an associated cam.

2. The string suppressor of claim 1 wherein, the elastomeric pad has a durometer in the range of Shore 40A to Shore 70A.

3. The string suppressor of claim 2 wherein, the elastomeric pad has a durometer in the range of Shore 50A to Shore 60A.

4. The string suppressor of claim 3 wherein, the elastomeric pad has a durometer in the range of Shore 54A to Shore 56A.

5. A crossbow comprising

a bow having

a riser having

a first riser side and

a second riser side opposite the first riser side,

a first limb set

engaged to the first riser side, and

defining a first limb axis;

a second limb set,

engaged to the second riser side, and

defining a second limb axis parallel to the first limb axis;

a first cam set having

a first shaft defining and rotatable about a first cam axis, first shaft engaged with the first limb such that the first cam axis coincides with the first limb axis,

a bowstring cam of the first cam set operationally engaged with the first shaft to be rotatable about the first cam axis;

a second cam set having

a second shaft defining and rotatable about a second cam axis, second shaft engaged with the second limb set such that the second cam axis coincides with the second limb axis;

a bowstring cam of the second cam set operationally engaged with the second shaft to be rotatable about the second cam axis;

an elongated bowstring

having

a first end of the elongated bowstring operationally engaged with the bowstring cam of the first cam set, and

a second end of the elongated bowstring opposite the first end of the elongated bowstring operationally engaged with the bowstring cam of the second cam set,

the bowstring being operable to be moved between

a cocked bowstring position, and

an uncocked bowstring position,

wherein operative motion of the bowstring between the cocked bowstring position and the uncocked bowstring position sweeps out a bowstring operation plane;

a first string suppressor engaged with the riser having

a first suppressor axis;

a first suppressor plane containing the first suppressor axis, the first suppressor plane being coincident with the bowstring operation plane;

an elastomeric pad elongated along the first suppressor axis to define

a first pad end, and

a second pad end opposite the first pad end along the first suppressor axis;

wherein the first pad end is operatively engaged with the crossbow riser; and

wherein the second pad end

has a string groove formed therein, the string groove being coextensive with the first suppressor plane, and

has a cam groove formed therein,

 

the cam groove being coextensive with the first suppressor plane,

 

the cam groove being wide enough to provide a clearance fit with the bowstring cam of the first cam set.

6. The crossbow of claim 5 wherein, the elastomeric pad has a durometer in the range of Shore 40A to Shore 70A.

7. The crossbow of claim 6 wherein, the elastomeric pad has a durometer in the range of Shore 50A to Shore 60A.

8. The crossbow of claim 7 wherein, the elastomeric pad has a durometer in the range of Shore 54A to Shore 56A.

9. The crossbow of claim 5, further comprising a second string suppressor engaged with the riser.

10. The crossbow of claim 9 wherein, each elastomeric pad has a durometer in the range of Shore 40A to Shore 70A.

11. The crossbow of claim 10 wherein, each elastomeric pad has a durometer in the range of Shore 50A to Shore 60A.

12. The crossbow of claim 11 wherein, each elastomeric pad has a durometer in the range of Shore 54A to Shore 56A.