Check valve with ventilation device
AssigneeTROBOLO Europe Sp.zo.o
InventorFriedrich Lange
Life of this patent
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Abstract
A check valve comprising, between an inlet end and an opposite outlet end along a common longitudinal axis, optionally an adapter arranged between the inlet end and a seal seat, a seal seat formed by a rigid scaffold, a closure element formed by an elastic closure part, optionally a stop ball, and optionally a stop that can be latched to the scaffold, wherein the scaffold and the closure part are shaped to match one another in the region of the seal seat, and the closure part is tensioned against the scaffold in the region of the seal seat in the rest position and is retained therein, wherein the scaffold has breaches in the region of the seal seat, and the closure element is formed in one piece with a venting device.
Claims16
A check valve comprising:
- an inlet;
- an outlet;
- a rigid scaffold comprising breaches;
- and
- an elastic closure part along a common longitudinal axis with the rigid scaffold between the inlet and the outlet, wherein the scaffold is between the closure part and the inlet, wherein the closure part sectionally projects with a venting section through an opening of the scaffold and comprises a passage in a direction toward the inlet, the passage being spaced from the scaffold,
- wherein the scaffold and the closure part are shaped to match one another, wherein the inlet and the closure part taper in a funnel shape toward the inlet, and wherein the closure part is tensioned against the scaffold and held therein when the closure part is in a rest position.
Dependencies are inferred from the claim text.