Title: Reaction arm for rotary sprinkler

Abstract: A reaction arm for rotary sprinkler is made of injection molded nylon. The arm is formed in two parts including a head and a main body portion. The head contains the spray diverting and deflecting passageways and the main body portion has a head-supporting shoe on one end, an intermediate pivot portion, and a counterweight portion. The shoe is received within an opening in the head and forms one wall of the water passageway. A counterweight may be added to the arm adjacent the head to provide additional mass to the reaction arm for proper operation of the sprinkler.

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Inventors: Eby, Ralph H. (Cincinnati, OH, US)

Application Number: 574536
Filing Date: 1975-05-05
Publication_date: 1976-04-27
Assignee: John S. Greeno Company (Cincinnati, OH)
Primary Class(es): 239/230 239/233, 239/DIG19
Other Classes:
US Patent Ref:

1997901	Apr, 1935	Englehart	239/230.
2592609	Apr, 1952	Shoemaker	239/230.
3022012	Feb, 1962	Sharp et al.	239/231.
3208672	Sep, 1965	Sully	239/230.
3408009	Oct, 1968	Friedmann et al.	239/233.
3669356	Jun, 1972	Senninger	239/230.

Other Refs:
Primary Examiner: Schacher, Richard A.
Assistant Examiner: Mar, Michael
Attorney: Biebel, French & Nauman