|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||239/164; 239/159; 239/163; 239/166; 239/169; 239/172; 239/288; 239/551|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 12 인용 특허 : 7|
The present invention comprises a walk behind zero turn radius drive unit and a front spray frame carrying a plurality of transversely spaced, clearly observable spray nozzles. The drive unit permits accurate and high productivity traverse of the application area with the ability to steer around obstacles and accurately traverse an irregular edging pattern. The spray frame includes a pair of folding spray arms, each of which carried dispensing nozzles. Another set of nozzles is positioned at the sides of the frame. All the nozzles are within the forward ...
What is claimed is: 1. A walk behind sprayer for applying maintenance liquids within the border of a turf growing area comprising: a walk behind zero turn radius drive unit having an engine operatively connected to a pair of laterally spaced manually steerable drive wheels; a rear operator control handle assembly for selectively controlling rotation of said drive wheels; a generally rectangular metal frame connected at a rear end to the front end of said drive unit and having a pair of laterally spaced wheel assemblies including pivotal wheels connected...