Anti dry-fire device for crossbows

• US 7,814,894 B2
• Filed: 11/02/2007
• Issued: 10/19/2010
• Est. Priority Date: 11/02/2007
• Status: Active Grant

• Current Assignee: Gaetan Giroux
• Original Assignee: Gaetan Giroux
• Inventors: Giroux, Gaetan
• Primary Examiner(s): RICCI, JOHN A
• Application Number:
  US11/934,441
• Publication Number:
  US 20090114200A1
• Time in Patent Office: 1,082 Days
• Field of Search: 124/25, 124/40
• US Class Current: 124/25
• CPC Class Codes: F41B 5/12 Crossbows
• CPC Class Codes: F41B 5/1469 Bow-string drawing or releasing devices F41B5/1473 takes precedence

Abstract

An anti dry-fire device for crossbows mounted on a viewfinder mount has a catch rotationally attached to a catch holder by way of an attachment pin. A catch biasing means to bias the catch. A lock-unlock means slidingly engaged on the top of the viewfinder mount. The lock-unlock means moving the catch from an operative mode into an inoperative mode.

Claims

1. An anti dry-fire device for crossbows mounted on a viewfinder mount and comprising:

a catch rotationally attached to a catch holder by way of an attachment pin;

a catch biasing means to bias the catch;

a lock-unlock means slidingly engaged on the top of the viewfinder mount;

the lock-unlock means moving the catch from an operative mode into an inoperative mode.

2. An anti dry-fire device as in claim 1 wherein:

a biased ball bearing is selectively biased from a first cavity to a second cavity when the lock-unlock means is moved from unlock mode to lock mode.

3. An anti dry-fire device as in claim 1 wherein:

an existing crossbow'"'"'s viewfinder mount is retrofitted with the catch rotationally attached to the catch holder by way of the attachment pin;

the catch biasing means to bias the catch;

the lock-unlock means slidingly engaged on the top of the viewfinder mount;

the lock-unlock means moving the catch from an operative mode into an inoperative mode.

4. An anti dry-fire device as in claim 1 wherein:

a stop and block restrain the range of motion of the lock-unlock means.

5. An anti dry-fire device having a mode of operation consisting in the steps of:

a user pulling a lock-unlock means in a direction opposite the way an arrow is to be released so as to allow a catch to pivot in an orientation that causes the catch to block the release of a string after the user has pulled the string so that the string passes the catch which allows passage of the string in one direction but not in the opposite direction;

the user loads an arrow;

the user, when ready to fire, pushes the lock-unlock means in the way the arrow is to be released so as to pivot the catch out of the way of the string;

the user pulls the trigger to release the string and throw the arrow.