Dual stirrup crossbow

• US 8,720,424 B2
• Filed: 07/27/2011
• Issued: 05/13/2014
• Est. Priority Date: 08/02/2010
• Status: Active Grant

• Current Assignee: James Jay Kempf
• Original Assignee: James Jay Kempf
• Inventors: Kempf, James Jay
• Primary Examiner(s): Kim, Gene
• Assistant Examiner(s): NICONOVICH, ALEXANDER R
• Application Number:
  US13/136,267
• Publication Number:
  US 20130061836A1
• Time in Patent Office: 1,021 Days
• Field of Search: 124/25, 124/88, 124/86
• US Class Current: 124/25
• CPC Class Codes: F41B 5/10 Compound bows compound crossbows F41B5/123
• CPC Class Codes: F41B 5/12 Crossbows
• CPC Class Codes: F41B 5/1469 Bow-string drawing or releasing devices F41B5/1473 takes precedence

Abstract

The present invention pertains to the field of archery devices, specifically to devices known as crossbows. Historically. crossbows have had a single foot stirrup, centered at the front end of the crossbow, to assist the user in the cocking procedure. Though functional, a single stirrup does not allow the user to naturally center the crossbow with his body while cocking the crossbow, which may cause miss-alignment of the bow string, as well as possible loss of balance and fatigue. By placing a stirrup on both sides of the barrel of the crossbow, the user may use his left foot, right foot, or both feet to cock the crossbow, and the crossbow is automatically centered to the users body.

Claims

1. A dual stirrup crossbow comprising:

a barrel having a first end and a second end;

a riser frame includes a first foot stirrup opening and a second foot stirrup opening, said first end of said barrel extends from said riser frame, said barrel having a longitudinal axis, said first foot stirrup is disposed on a first side of said longitudinal axis, said second foot stirrup is disposed on a second side of said longitudinal axis, material is located between said first and second stirrup openings, wherein said first and second stirrup openings fully encompass a foot inserted therein;

a first limb assembly extends from a first side of said riser frame, a second limb assembly extends from a second side of said riser frame;

a first cam is rotatably retained on an end of said first limb assembly, a second cam is rotatably retained on an end of said second limb assembly; and

a bow string is retained on said first and second cams.

2. A dual stirrup crossbow of claim 1, further comprising:

a crossbow stock extends from said second end of said barrel.

3. A dual stirrup crossbow of claim 1, further comprising:

a retaining device is located on said barrel for releasably retaining a portion of said bow string.

4. A dual stirrup crossbow of claim 1 wherein:

a projectile rest is located on or located adjacent said barrel.

5. A dual stirrup crossbow of claim 1 wherein:

said crossbow utilizes conventional cam technology.

6. A dual stirrup crossbow of claim 1 wherein:

said crossbow utilizes inverted cam technology.

7. A dual stirrup crossbow comprising:

a barrel having a first end and a second end;

a riser frame includes a first foot stirrup opening and a second foot stirrup opening, said first end of said barrel extends from said riser frame, said barrel having a longitudinal axis, said first foot stirrup is disposed on a first side of said longitudinal axis, said second foot stirrup is disposed on a second side of said longitudinal axis, wherein said first and second foot stirrups fully encompass each foot separately;

a first cam is rotatably retained on an end of said first limb assembly, a second cam is rotatably retained on an end of said second limb assembly; and

a bow string is retained on said first and second cams.

8. A dual stirrup crossbow of claim 7, further comprising:

a crossbow stock extends from said second end of said barrel.

9. A dual stirrup crossbow of claim 7, further comprising:

a retaining device is located on said barrel for releasably retaining a portion of said bow string.

10. A dual stirrup crossbow of claim 7 wherein:

a projectile rest is located on or located adjacent said barrel.

11. A dual stirrup crossbow of claim 7 wherein:

said crossbow utilizes conventional cam technology.

12. A dual stirrup crossbow of claim 7 wherein:

said crossbow utilizes inverted cam technology.

13. A dual stirrup crossbow comprising:

a barrel having a first end and a second end;

a riser frame includes a first foot stirrup opening and a second foot stirrup opening, said first end of said barrel extends from said riser frame, said barrel and said riser frame are fabricated from a single piece of material, said barrel having a longitudinal axis, said first foot stirrup is disposed on a first side of said longitudinal axis, said second foot stirrup is disposed on a second side of said longitudinal axis, wherein said first and second foot stirrups fully encompass each foot separately;

a first limb assembly extends from a first side of said riser frame, a second limb assembly extends from a second side of said riser frame;

a first cam is rotatably retained on an end of said first limb assembly, a second cam is rotatably retained on an end of said second limb assembly; and

a bow string is retained on said first and second cams.

14. A dual stirrup crossbow of claim 13, further comprising:

a crossbow stock extends from said second end of said barrel.

15. A dual stirrup crossbow of claim 13, further comprising:

a retaining device is located on said barrel for releasably retaining a portion of said bow string.

16. A dual stirrup crossbow of claim 13 wherein:

a projectile rest is located on or located adjacent said barrel.

17. A dual stirrup crossbow of claim 13 wherein:

said crossbow utilizes conventional cam technology.

18. A dual stirrup crossbow of claim 13 wherein:

said crossbow utilizes inverted cam technology.