US 6,012,483 AGranted

Switch-over valve having pivot axle articulated closure wings

AssigneeH. Meinecke AG

InventorUwe Beddies

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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.

Claims22

Dependent claims

A switch-over valve for a compound water meter, comprising:

(a) a housing defining a valve seat and throughflow cross section;
(b) a pivot extending across said throughflow cross section of said housing and supported at opposite ends in opposed portions of said housing;
(c) a closure member formed by a divided flap having a pair of wings articulated by said pivot for movement between opened and closed positions relative to said valve seat and throughflow cross section of said housing;
(d) means for biasing said wings of said divided flap in a direction counter to a normal direction of flow through said throughflow cross section of said housing to said closed position preventing flow through said throughflow cross section but upon flow through said throughflow cross section of said housing exceeding a predetermined limit said biasing means also adapted for permitting said wings to move toward said opened position enabling flow through said throughflow cross section;
(e) a flat seal of flexible material disposed on and at least partially covering an upstream side of said divided flap;
and
(f) a pair of nubs each respectively attached on one of said wings, said flat seal having a pair of longitudinal holes therein extending in a direction perpendicular to said pivot means, said longitudinal holes respectively receiving therethrough said nubs of said wings such that said flat seal is secured form-fittingly on said wings and at the same time guided by said nubs of said wings for movement relative thereto as said wings are moved between said opened and closed positions.

4 more elements

A switch-over valve for a compound water meter, comprising:

(a) a housing defining an annular valve seat and a central throughflow cross section;
(b) a pivot extending across said central throughflow cross section of said housing and supported at opposite ends in opposed portions of said housing;
(c) a closure member formed by a divided flap having a pair of wings disposed along opposite longitudinal sides of said pivot and articulated by said pivot means for movement between opened and closed positions relative to said annular valve seat and said central throughflow cross section of said housing, said wings being hingedly associated one with the other along and about said pivot disposed along a region of division of said divided flap such that gaps are formed along said region of division of said divided flap and thereby along said pivot;
(d) a flat seal of flexible material disposed on and at least partially covering an upstream side of said divided flap and extending over said region of division of said divided flap;
(e) at least one pretensioned spring disposed on said pivot and biasing said wings of said divided flap in a direction counter to a normal direction of flow through said throughflow cross section of said housing to said closed position preventing flow through said throughflow cross section of said housing but upon flow through said throughflow cross section of said housing exceeding a predetermined limit said spring adapted for permitting said wings to move toward said opened position enabling flow through said throughflow cross section;
and
(f) a pair of nubs each respectively attached on one of said wings, said flat seal having a pair of longitudinal holes therein extending in a direction perpendicular to said pivot means, said longitudinal holes respectively receiving therethrough said nubs of said wings such that said flat seal is secured form-fittingly on said wings and at the same time guided by said nubs of said wings for movement relative thereto as said wings are moved between said opened and closed positions.

4 more elements

Dependencies are inferred from the claim text.