Patent ID: 6668939
Filing Date: 2003-12-30
Classification: A62C

Abstract:
A piercing nozzle used by an operator for penetrating a door, wall or similar barrier and injecting fluid beyond the barrier, comprising;a. an elongated tube having a longitudinal axis with a source of pressurized fluid at one end, b. a pointed head having a hollow central cavity and attached to an opposite end of said tube, c. a sliding weight containing a hole through which said tube passes, and adapted to slide back and forth along the tube, d. at least one weight stop positioned on the tube between said sliding weight and the end of said tube nearest to the pointed head, e. a handle on said sliding weight, whereby the operator can move said sliding weight away from said weight stop, and then toward said weight stop, whereby the momentum and impact of said sliding weight against the weight stop gives a force to the pointed head and tube to penetrate a door, wall, or barrier; and f. a means for spraying a fluid in proximity to the pointed head.