Fluid sprinkling – spraying – and diffusing – With cleaning means – drip collecting – waste disposal or soil... – Solid scraping or clearing member
Patent
1985-06-13
1986-09-02
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
With cleaning means, drip collecting, waste disposal or soil...
Solid scraping or clearing member
92 87, 92168, 239206, 277 24, 277 33, 285110, B05B 1510, F16J 1532
Patent
active
046091467
ABSTRACT:
A sprinkler including a housing, a riser and a riser seal element is disclosed. The housing has a hollow interior with an upward-inward slanted, conical shaped seal element receiving slot. The riser is mounted in the hollow interior of the housing for reciprocating motion between an extended sprinkling position and the retracted non-sprinkling position. The riser has an exterior surface along its length and the housing has an interior surface at its upper end between which a gap is defined. The riser seal element is comprised of an elastic material and has an outer portion which is held in the seal element receiving slot to thereby position the seal element in an upward, generally conical orientation. An inner portion of the seal element extends into the gap to form a seal therein for preventing the entry of extraneous material through the gap. The inner portion of the seal element is flexible between an upwardly slanted position and a downwardly flexed position.
REFERENCES:
patent: 2795195 (1957-06-01), Amblard et al.
patent: 3421604 (1969-01-01), Hobbs
patent: 3724757 (1973-04-01), Hunter
patent: 3733030 (1973-05-01), Carstenson
patent: 4316579 (1982-02-01), Ray et al.
Kashnikow Andres
The Toro Company
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