IP Library Granted Patent US 7,444,939
Granted Patent B2
US 7,444,939 · App. 11/083,435 · Granted Nov 4, 2008

Ammunition for electrical discharge weapon

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Quick Facts
Patent No.
US 7,444,939
App. No.
11/083,435
Granted
Nov 4, 2008
Kind
B2
Abstract

A primer-fired ammunition cartridge for an electrical discharge weapon having a housing with an exterior surface and two wire-tethered darts positioned within dart chambers in the housing and two electrical contacts positioned on opposite surfaces of the housing for lengthening an electrical arc path across the exterior surface of the housing. The housing can include a flange portion for engaging a chamber in an electrical discharge weapon wherein the flange portion includes an aperture thereby allowing the flange portion to bow and absorb resultant forces between the ammunition cartridge and the chamber of the electrical discharge weapon during firing of the cartridge.

Claims (14)

1. An ammunition cartridge for an electrical discharge weapon comprising:

a housing having an exterior surface and a first dart chamber and a second dart chamber located within the housing;

a first wire tethered dart positioned in the first dart chamber and connected to a first electrical contact;

a second wire tethered dart positioned in the second dart chamber and connected to a second electrical contact;

a primer having a chemical propellant for launching the first and second wire tethered darts;

a contact probe extending from the first electrical contact to a front surface of the ammunition cartridge;

a contact probe extending from the second electrical contact to a front surface of the ammunition cartridge;

the first electrical contact is positioned on a side surface of the housing;

the second electrical contact is positioned on a side surface of the housing opposite the first electrical contact whereby an electrical arc path may cross the exterior surface of the housing.

2. The ammunition cartridge of claim 1 , wherein the housing includes a recessed chamber for receipt of the primer.

3. The ammunition cartridge of claim 2 , wherein a second wire tethered dart terminates at one of the electrical contacts.

4. The ammunition cartridge of claim 2 further having a back plate with a raised plug for receipt over the primer recessed within the housing.

5. The ammunition cartridge of claim 1 , wherein one wire tethered dart terminates adjacent the primer.

6. The ammunition cartridge of claim 1 wherein the dart chambers extend in the housing at an angle to each other.

Assignments (9)
RELEASE OF SECURITY INTEREST Recorded Aug 23, 2021
From: BANK OF AMERICA, N.A.
To: SAFARILAND, LLC
Reel/Frame 057264/0910 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 20, 2019
From: PHAZZER IP, LLC
To: LEONIDIS IP, INC.
Reel/Frame 051398/0620 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 21, 2019
From: MCNULTY, JAMES F.
To: PHAZZER IP, LLC
Reel/Frame 050457/0454 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2019
From: VIEVU, LLC
To: AXON ENTERPRISE, INC.
Reel/Frame 049615/0958 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 15, 2018
From: SAFARILAND, LLC
To: VIEVU, LLC
Reel/Frame 046099/0802 →
RELEASE OF SECURITY INTEREST RECORDED AT R/F NO. 040660/0873 Recorded May 3, 2018
From: VIRTUS GROUP, LP
To: SAFARILAND, LLC
Reel/Frame 046082/0565 →
PARTIAL RELEASE OF SECURITY INTEREST IN PATENTS Recorded Apr 3, 2017
From: VIRTUS GROUP, LP
To: SAFARILAND, LLC
Reel/Frame 042143/0863 →
RELEASE OF SECURITY INTEREST Recorded Mar 17, 2017
From: BANK OF AMERICA, N.A., AS AGENT
To: SAFARILAND, LLC
Reel/Frame 041602/0781 →
ASSIGNMENT OF INTELLECTUAL PROPERTY SECURITY AGREEMENTS Recorded Nov 21, 2016
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: VIRTUS GROUP, LP
Reel/Frame 040660/0873 →