The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 1994
Filed:
Jun. 01, 1992
James R Turner, Ft. Pierce, FL (US);
Other;
Abstract
A device for attachment to a tractor or similar vehicle for safe spray application of liquid chemicals around trees or like plants basically includes an elongated boom unit and a multinational spray unit pivoted by its inboard end on the boom unit, formed of an inboard section and an outboard section. The outboard section carries a spray nozzle and is pivoted by its inboard end to the outboard end of the inboard section. Spring members normally bias both sections of the spray unit into alignment with the boom unit, but first allow the inboard section followed, in turn, by the outboard section to move out of such alignment so they partially encircle a tree as the spray unit of the device contacts the trunk of the tree while the tractor moves the device forward and past the tree. Proximity switches and a photocell sense the correct positioning of the tree to emit sprayed chemical from the nozzle only when the spray unit is in contact with the tree.