Yong Hee Park

US Patent:

20060254108, Nov 16, 2006

Filed:

Apr 20, 2005

Appl. No.:

11/110201

Inventors:

Yong Park - La Canada CA, US

International Classification:

F41C 9/00
H01T 23/00

US Classification:

042001080, 089001110, 361232000

Abstract:

A unitary projectile for an immobilization weapon and tethered by two electrical wires, has a plurality of electrical contacts including several contacts dispersed in a spaced pattern around the projectile after target impact. The pattern of several contacts substantially increases the probability that if the projectile hits the target, an immobilization circuit through the target will be completed. The deployment of the second contacts occurs as a result of the sudden deceleration of the projectile when it impacts the target or by the use of an additional spring-biased device. This simplifies the deployment as well as the projectile configuration and likely reduces the risk of misactivation or an ill-timed activation of the second contacts. In a preferred version of the disclosed embodiments, each projectile has its own electrical contact which forms one of the two polarities of the electrical discharge. In addition, there are preferably four second polarity contacts dispersed in a symmetrical arrangement around the projectile.

US Patent:

20140063679, Mar 6, 2014

Filed:

Oct 6, 2012

Appl. No.:

13/646684

Inventors:

Yong S. Park - La Canada CA, US

International Classification:

F41H 13/00

US Classification:

361232, 102502

Abstract:

A unitary projectile for an immobilization weapon and tethered by two electrical wires, has a plurality of electrical contacts including several contacts dispersed in a spaced pattern around the projectile after target impact. The pattern of several contacts substantially increases the probability that if the projectile hits the target, an immobilization circuit through the target will be completed. The deployment of the contacts occurs as a result of the sudden deceleration of the projectile when it impacts the target. This simplifies the deployment as well as the projectile configuration and likely reduces the risk of misactivation or an ill-timed activation of the second contacts. In a preferred version of the disclosed embodiments, there are preferably four contacts dispersed in a symmetrical arrangement around the projectile. The immobilization voltage in preferably applied to one pair of opposed contacts and then to the other in an oscillating fashion in order to increase the likelihood of disabling effect.