Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1998-05-29
1999-10-26
Ferensic, Denise L.
Fluid handling
Line condition change responsive valves
Direct response valves
137584, F16K 1500, F16K 2400
Patent
active
059710144
ABSTRACT:
A venting device intended for connection to a horizontal sanitary vent pipe, in which vacuum pressure excursions occur providing a need for the introduction of air from the outside of the pipe automatically by way of the device without allowing a reverse flow of the evil air from inside the pipe when pressure within is equalized or risen. The device has three adjacent ends. A first end comprises a cap forming tubular chamber integrally housing therein a suitable valve sealing means substantially covering an air inlet means situated within the chamber. The sealing means is securely closed at equilibrium and against high pressure, whilst automatically opening a vacuum within the pipe to admit air. The first end is adjacent a lower tubular body portion having a second and third end. The second end forms a suitable means for affixing the device to a horizontal vent pipe; whereas the third end terminates to an opening which may normally be closed by way of a removable repeatable access fitting. The device may be fully encased within a suitable wall mounted receptacle having a removable face with a plurality of air openings providing air movement, concealability and ready accessibility within a wall cavity to the venting device.
REFERENCES:
patent: Re35532 (1997-06-01), Duren
patent: 2127184 (1938-08-01), O'Leary
patent: 2461392 (1949-02-01), Parry
patent: 3096782 (1963-07-01), Williams
patent: 3324922 (1967-06-01), Hargreaves et al.
patent: 3862433 (1975-01-01), Rousselet
patent: 3923081 (1975-12-01), Persson
patent: 4158471 (1979-06-01), Logsdon
patent: 4232706 (1980-11-01), Ericson
patent: 4545398 (1985-10-01), van Olst
patent: 4867802 (1989-09-01), Earl
patent: 4917147 (1990-04-01), Jerkins
patent: 4934410 (1990-06-01), Humber
patent: 4974632 (1990-12-01), Ericson
patent: 4991623 (1991-02-01), Ericson
patent: 5048562 (1991-09-01), Frawley
patent: 5050632 (1991-09-01), Means, Jr.
patent: 5273068 (1993-12-01), Duren
Ferensic Denise L.
Kim Joanne Y.
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