Patent ID: 7555864
Filing Date: 2009-07-07
Classification: A01G

Abstract:
1. A Japanese knotweed injector system for injecting a dose of weed-killing fluid into the stem of a Japanese knotweed, comprising: a fluid dispenser system with a fluid passage; a collared needle having connection means for connecting to said fluid passage, a base of constant cross section, with a fluid delivery aperture in communication with the fluid dispenser system disposed along said base in the range of 0.35 inches to 0.45 inches from said collar, a tapered shoulder extending from said base tapering from a first cross section matching said base to a second reduced cross section, a shaft extension of constant cross section extending from said tapered shoulder and matching said second reduced cross section, and a highly tapered blunted tip extending from said shaft extension, wherein said needle is dimensioned to pierce completely through the stem of a Japanese knotweed plant and said collar is positioned to place said aperture in the core of a Japanese knotweed stem to prevent blowback of the fluid; and, actuator means connected to the fluid dispenser system for actuating the transmission of fluid from the fluid dispenser system to the fluid delivery aperture, wherein said collared needle impales a Japanese knotweed stem, leaving said aperture in the interior of said Japanese knotweed.