Backpack with sprayer

Details Backpack with sprayer Backpack with sprayer

2007-02-13

2007-02-13

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

With signals, indicators, recorders, meters or changeable...

C239S067000, C239S152000, C239S153000, C239S154000, C239S146000, C239S170000

Reexamination Certificate

active

10992895

ABSTRACT:
An apparatus for spraying chemicals in a forestry environment includes a back pack supported reservoir for containing such chemicals and a variable speed pump for urging the chemicals from the reservoir through a rearwardly oriented spraying unit. Positional and delivery rate monitoring equipment may also be incorporated in the design.

REFERENCES:
patent: 3848340 (1974-11-01), Hamm
patent: 5255195 (1993-10-01), Mochizuki et al.
patent: 5636791 (1997-06-01), Leer
patent: 5752661 (1998-05-01), Lewis
patent: 5785245 (1998-07-01), Tedders et al.
patent: 6938829 (2005-09-01), Doherty et al.

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