1. Field of the Invention
In the maintenance of orchard and other trees, it is a known practice to pressure-inject a tree-treating solution into the trunk of a tree by means in a nozzle inserted in a pre-drilled bore therein. However, the devices heretofore available for the purpose have not been wholly satisfactory in that they were frequently inconvenient to manipulate or difficult to attach to a tree trunk, and--after attachment--the nozzle often did not maintain a proper seal with the tree trunk or tended to disengage from the bore therein. The present invention was conceived in a successful effort to provide a device, for the purpose described, which is not subject to the aforementioned problems.
2. The Prior Art
U.S. Pat. Nos. 318,609; 772,776; 1,583,900; 1,756,453; 2,870,576; 3,118,402; 3,136,091 and 3,295,254 represent the prior art to the extent known to applicant, and applicant has no knowledge of any prior art disclosing the particular structure of the herein-claimed tree-treating injecting device.