Tree injector
AssigneeSimcro Tech Limited
InventorAndrew William Higgins
Life of this patent
Estimating the term…
Abstract
A cylinder 16 has a piston 19 slidable therein, to force liquid from the cylinder out through a hollow needle 18. A pair of handles 11 extend outwardly from the cylinder, substantially normal thereof. Each handle carries a lever 30 pivoted thereon. In use, movement of the piston is less than the corresponding movement of a manually operable portion 32 (FIG. 1).
Claims13
A tree injector comprising a cylinder with a liquid outlet feed to a hollow needle holder and a liquid inlet feed, a piston co-acting with the cylinder to displace liquid from the cylinder through the outlet feed when the piston is operated and a manually operable lever mechanism that moves the piston through a smaller distance than the corresponding distance of movement of a manually operable part of the lever mechanism, the lever mechanism being connected to the piston with an adjustable length link pivoted at one end to the lever mechanism and pivoted at another end to one of the piston and a member slidable therewith.
A tree injector comprising:
- a hollow tube for holding a fluid to be injected, one end of said tube having a hollow injector;
- a movable piston inside said tube for ejecting the fluid from said injector when said piston is moved;
- a movable sleeve on an exterior surface of said tube, said sleeve being attached to and movable with said piston;
- a handle attached to said tube generally perpendicular thereto;
- at least one movable arm pivotally attached to said handle;
- and
- a link pivotally connecting said arm to said sleeve so that said piston moves a smaller distance than said arm when said arm is moved.
Dependencies are inferred from the claim text.