Title: Agriculture chemical spray valve

Abstract: A low operating force valve which handles solutions having highly abrasive wettable powders. The valve is a low pressure butterfly-type, 3-way, two-position, valve; including a recirculating path in the closed position which is opened by a convex-shaped disc carried on a stem which rotates on the main valve shaft in conjunction with the two butterfly halves.

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Inventors: Jeffries, Jerold R. (Augusta, KS, US)
Fickel, H. Glen (Wichita, KS, US)
Schifferdecker, Donald E. (Wichita, KS, US)

Application Number: 840597
Filing Date: 1977-10-11
Publication_date: 1979-05-29
Assignee: The Cessna Aircraft Company (Wichita, KS)
Primary Class(es): 137/625.46 137/875, 137/876
Other Classes:
US Patent Ref:

913632	Feb, 1909	Foster	137/625.
1317762	Oct, 1919	Shafe, Jr.	137/876.
2856952	Oct, 1958	Stillwagon	137/625.

Other Refs:
Primary Examiner: Rosenthal, Arnold
Assistant Examiner:
Attorney: Brown, Jr.; Edward L.