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US 4,792,119 AGranted
Valve
AssigneeKlein, Schanzlin & Becker Aktiengesellschaft
InventorsAlois Illy, G/u/ nter Alberti, Karlheimz Feierlein
Life of this patent
Estimating the term…
Abstract
A valve wherein the housing has an internal seat having a sealing face which surrounds a seat area that is inclined with reference to the axis of a stem for the valving element. The sealing face is tapered and forms part of a conical surface. In order to ensure that the valving element is pressed against the sealing face, the line of action of the force which is applied by the stem is eccentric to the axis of the conical surface.
Claims15
A valve comprising a housing;
- a seat in said housing;
- a linearity movable valving disposed in said housing;
- and moving means actuatable to move said element in said housing toward and away from engagement with said seat, said moving means including a stem having a first axis which is inclined with reference to said seat, said seat having a tapered sealing face engageable by said element, constituting a portion of a conical surface and surrounding a seat area, the conical surface having an apex and a second axis, and said stem being actuatable to exert upon said element a stem force having a line of action intersecting said seat area at a first location disposed at a first distance from said apex, said second axis intersecting said seat area at a second location disposed at a lesser second distance from said apex.
Dependencies are inferred from the claim text.