Valve for fire hydrants

Details Valve for fire hydrants Valve for fire hydrants

1976-07-30

1978-02-14

Schwadron, Martin P.

Fluid handling

Hydrant type

Removable valve and valve seat

291571R, 29401F, 29450, 137315, 251175, 251333, F16K 2500

Patent

active

040733076

ABSTRACT:
The specification discloses a fire hydrant and valve assembly therefor including a flexible, resilient compressible, fluid-impervious sealing flange or lip formed on and extending outwardly of the main valve sealing member for supplemental sealing of both the water passageway through the main valve seat ring and between the valve seat ring and inner surface of the hydrant conduit.
Also disclosed is a method for assembling a valve assembly in a fire hydrant to prevent damage to the valve assembly by using the sealing flange or lip on the sealing member to locate and guide the valve assembly through the valve seat area of the conduit as well as to lubricate that area during insertion of the valve to ease assembly and facilitate later disassembly.

REFERENCES:
patent: 577519 (1897-02-01), Pichler
patent: 645223 (1900-03-01), Bashline
patent: 1061556 (1913-05-01), Osborne
patent: 1278487 (1918-09-01), Lofton
patent: 1616742 (1927-02-01), Derby
patent: 1847385 (1932-03-01), Dengler
patent: 2213998 (1940-09-01), Sifkovitz
patent: 2262489 (1941-11-01), Bolser
patent: 2980125 (1961-04-01), Grant et al.
patent: 3027907 (1962-04-01), Lee
patent: 3054422 (1962-09-01), Napolitano
patent: 3075547 (1963-01-01), Scaramucci
patent: 3219311 (1965-11-01), Siver
patent: 3356104 (1967-12-01), Canalizo
patent: 3980097 (1976-09-01), Ellis

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