Planting – Liquid or gas soil treatment – Treating substance includes ammonia
Reexamination Certificate
2008-07-22
2008-07-22
Novosad, Christopher J. (Department: 3641)
Planting
Liquid or gas soil treatment
Treating substance includes ammonia
C111S200000, C137S068150, C251S089500, C239S722000, C239S578000
Reexamination Certificate
active
07401562
ABSTRACT:
A safety system is provided for an anhydrous ammonia nurse tank (4) pulled by a tractor (1) with a tool bar applicator (2). The system includes a safety valve (10), and a breakaway coupling or connector (12) along a flexible hose (11) from the nurse tank to the applicator. The safety shutdown valve (10) closes in response to a break in the electrical connector in the event of a pull away or manual activation of a safety switch.
REFERENCES:
patent: 7036441 (2006-05-01), Scudder
Emerson-Fisher, Instruction Manual Type C407-10 Internal Valves, Jan. 2002, 8 pages.
Browning & Bushman P.C.
Novosad Christopher J.
PGI International Ltd.
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