Fluid sprinkling – spraying – and diffusing – Including supply holder for material – Fluid pressure discharge means
Reexamination Certificate
2006-02-14
2006-02-14
Nguyen, Dinh Q. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Including supply holder for material
Fluid pressure discharge means
C239S375000, C239S327000, C239S310000, C239S322000, C239S378000, C222S386000
Reexamination Certificate
active
06997399
ABSTRACT:
A spraying system for the application of fertilizer, insecticides, fungicides, etc. to plants, vegetables, small trees and lawns. The spraying system presents several improvements over the original Lacy Sprayer (see U.S. Pat. No. 5,398,852) inclusive an improved bladder attachment and improved bladder design, and a new pressure-limiting flow restrictor to ensure safe operation, and a spray discharge fitting incorporating a porous filter to protect the bladder from excessive stresses. The spray hose is connected to this assembly. The improved system facilitates a method of use in which the tank containing the spray solution is placed stationery in an area to be sprayed. The operator attaches a long (30′+ or −) small diameter spray hose for remote spraying within a radius permitted by the spray hose. The spraying system avoids the need to pump or to carry a heavy tank while spraying. Moreover, the continuous, higher pressure of the spraying system provides a wide range of operation from a foggy mist to spraying the tops of good size trees, and saves more than half the spray solution normally wasted.
REFERENCES:
patent: 1743056 (1930-01-01), Whitaker
patent: 2865541 (1958-12-01), Hicks
patent: 3720230 (1973-03-01), Stockstill
patent: 3933415 (1976-01-01), Woolpert
patent: 5499750 (1996-03-01), Manifold
patent: 6595392 (2003-07-01), Barnett
Law Offices of Royal W. Craig
Nguyen Dinh Q.
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