Title: Sprinkler control

Abstract: A rotary sprinkling system which is configured to minimize the accumulation and detrimental effects of debris, and which comprises a pop-up nozzle head secured to an inner housing slidably received within an outer housing and retained by the compressive force of a spring, such inner housing enclosing an impeller driven transmission subjected to only low pressure drops and having a speed-reducing gear train isolated from water flow, a simplified and easily adjustable direction controlling mechanism substantially inaccessible to intermeddlers, and a manually adjustable by-pass throttle to control the flow velocity of water driving a water-wheel impeller.

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Inventors: Phaup, Charles W. (Dallas, TX, US)

Application Number: 500051
Filing Date: 1974-08-23
Publication_date: 1976-01-27
Assignee: Telsco Industries (Dallas, TX)
Primary Class(es): 239/205 239/73, 239/206, 239/240, 239/246, 239/259
Other Classes:
US Patent Ref:

1845364	Feb, 1932	Thompson	239/259.
2393091	Jan, 1946	De Lacy-Mulhall	239/206.
3107056	Oct, 1963	Hunter	239/206.
3149784	Sep, 1964	Skidgel	239/240.
3645451	Feb, 1972	Hauser	239/206.
3655132	Apr, 1972	Rosic	239/206.
3702678	Nov, 1972	Hauser	239/206.
3713584	Jan, 1973	Hunter	239/206.
3785565	Jan, 1974	Perry et al.	239/206.
3854664	Dec, 1974	Hunter	239/206.

Other Refs:
Primary Examiner: Blunk, Evon C.
Assistant Examiner: Kashnikow, Andres
Attorney: Richards, Harris and Medlock