Tree injector

Details Tree injector Tree injector

1988-03-09

1990-03-20

Hafer, Robert A.

Plant husbandry

Injection, method or apparatus

A01G 2900

Patent

active

049089838

ABSTRACT:
An apparatus for injecting fluid under pressure into trees having a base and a plurality of cylinders supported by the base for receiving injection fluid. Each cylinder has a first end, a piston reciprocable in the cylinder for injecting fluid from the cylinder into a tree, an opening when the piston is moved to a position away from the first end of the cylinder, and an independent injector. Each cylinder also includes an actuator connected to the piston for moving the piston toward and away from the first end, and having an adjustor for selecting the amount of fluid to be injected. First and second conduits are connected to the first end of the cylinders. The first conduits are in communication with a reservoir of injection fluid and the second conduits are in communication with the injectors. A plurality of third conduits are also included, and are in communication with the cylinders when the piston is moved to a location away from the first end. The third conduits are in communication with the reservoir. A pump supported by the base for circulating injection fluid through the cylinders from the first conduit to the third conduit, to purge air from the cylinders and to fill the cylinders with injection fluid.

REFERENCES:
patent: 1718195 (1929-06-01), Rankin
patent: 3295254 (1967-01-01), Schoonman
patent: 3316817 (1967-05-01), Ellis
patent: 3780943 (1973-12-01), Lilja
patent: 3834075 (1974-09-01), Nix et al.
patent: 3992813 (1976-11-01), Freshel
patent: 4144673 (1979-03-01), Quast et al.
patent: 4505067 (1985-03-01), Gillespie
patent: 4596088 (1986-06-01), Graber
TIS Enterprises, "Colt 75", Tree Injection System.
TIS Enterprises, "Stallion 75", Tree Injection System.
Springfield Specialties Co., Closed Injection System.
Arborchem Products Co., Arborchem Tree Injection Products.
Birchmeier & Co. Ltd., Birchmeier Commander.
Wilbur-Ellis APM Injector for Tree Growth Retardents.
Davey Tree Exp. Co. Manual for Inject. of Chemicals.

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