Switch-over valve having pivot axle articulated closure wings

Details Switch-over valve having pivot axle articulated closure wings Switch-over valve having pivot axle articulated closure wings

1998-04-17

2000-01-11

Ferensic, Denise L.

Fluid handling

Line condition change responsive valves

Direct response valves

251212, F16K 1500

Patent

active

060124830

ABSTRACT:
A switch-over valve for a compound water meter includes an annular-shaped housing defining an annular valve seat and a central throughflow cross section, a pivot extending across the housing and supported at opposite ends in opposed portions of the housing, a closure member formed by a divided flap having a pair of wings disposed along opposite longitudinal sides of the pivot and articulated by the pivot for movement between opened and closed positions relative to the annular valve seat and the central throughflow cross section and a spring disposed about the pivot biasing the wings toward the closed position. The two wings of the divided flap are connected hinge-like one with the other along and via the pivot which extends along and in the region of division of the flap. The divided flap, due to its construction, has gaps along its region of division and along the pivot which are covered by a flat flexible seal disposed on an upstream side of the divided flap. The pivot can be a common axle or a pair of separate pivot axles arranged in side-by-side relationship each mounting one of the wings.

REFERENCES:
patent: 1743731 (1930-01-01), Scott
patent: 2270433 (1942-01-01), Goffredo
patent: 2390150 (1945-12-01), Johnson et al.
patent: 3072141 (1963-01-01), Wheeler
patent: 3533438 (1970-10-01), Smith
patent: 3678958 (1972-07-01), Satterwhite et al.
patent: 4043358 (1977-08-01), Sliski
patent: 4196745 (1980-04-01), Schutzer
patent: 4321944 (1982-03-01), Schutzer
patent: 4585026 (1986-04-01), Norton

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