Sprinkler having valve module with reciprocating valve seat

Details Sprinkler having valve module with reciprocating valve seat Sprinkler having valve module with reciprocating valve seat

2007-12-04

2007-12-04

Gorman, Darren (Department: 3752)

Fluid sprinkling, spraying, and diffusing

With fixed support for or ground installed supply means

Embedded or buried sprinkler

C239S201000, C239S237000, C239S240000, C251S026000, C251S170000

Reexamination Certificate

active

11364434

ABSTRACT:
A sprinkler includes an outer case and a riser mounted for reciprocation within the case. The riser supports a nozzle, an impeller, and a drive linkage connecting the nozzle and the impeller. A diaphragm valve is mounted in outer case beneath the riser and includes a valve member vertically reciprocable within a valve support housing to engage and disengage a valve seat. The valve seat can reciprocate relative to the valve support housing to reduce mechanical loading.

REFERENCES:
patent: 2833299 (1958-05-01), Marriette
patent: 4637548 (1987-01-01), Ray et al.
patent: 5871156 (1999-02-01), Lawson
patent: 5899386 (1999-05-01), Miyasato et al.
patent: 5927607 (1999-07-01), Scott
patent: 6186413 (2001-02-01), Lawson
patent: 6491235 (2002-12-01), Scott et al.
patent: 6854664 (2005-02-01), Smith

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