Pop-up sprinkler with shock absorbing riser spring

Details Pop-up sprinkler with shock absorbing riser spring Pop-up sprinkler with shock absorbing riser spring

1996-08-16

1998-10-20

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With fixed support for or ground installed supply means

Embedded or buried sprinkler

239203, 239204, B05B 1510

Patent

active

058234390

ABSTRACT:
A sprinkler unit comprises a tubular housing having an inlet for connecting to a source of water, a tubular riser telescopically reciprocally mounted in the tubular housing and moveable from a retracted position within the housing to an extended position from the housing, the riser having an outlet having a nozzle for distributing a stream of water outward from the housing, a passage connecting the inlet to the outlet, a retraction spring normally biasing the riser to the retracted position, and a shock absorbing coating on the retracting spring for absorbing the shock of movement of the riser to the extended position.

REFERENCES:
patent: 3096084 (1963-07-01), Osterhoudt
patent: 3684179 (1972-08-01), Fischer
patent: 4512517 (1985-04-01), Manor
patent: 4869471 (1989-09-01), Schwarz et al.
patent: 5299786 (1994-04-01), Godin
patent: 5310167 (1994-05-01), Noll, Jr.
patent: 5358224 (1994-10-01), Balsells

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