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US 9,518,668 B2Granted
Check valve with backbone enhanced petals
AssigneeHamilton Sundstrand Corporation
InventorMichael R. Barone
Life of this patent
Estimating the term…
Abstract
A check valve includes a base, two sidewalls extending from the base and a pin coupled between the two sidewalls. The valve also includes a flapper pivotably coupled to the pin to occupy respective open and closed positions in accordance with a pressure differential of a fluid flow across the check valve, the flapper including a plate and a backbone that is thicker than the base and the extends along an entire length of the plate.
Claims17
A check valve, comprising:
- a body;
- two sidewalls extending from the body;
- a pin coupled between the two sidewalls;
- a flapper pivotably coupled to the pin to occupy respective open and closed positions in accordance with a pressure differential of a fluid flow across the check valve, the flapper including a flapper body formed as a plate and a backbone that is thicker than the flapper body and extends along an entire length of the flapper body;
- an arcuate outer protrusion that connects opposing ends of the backbone and extends from an upper surface of the flapper body;
- and
- a rib extending between and connecting the arcuate outer protrusion and the backbone, the rib being perpendicular to the backbone, wherein the rib portion includes an indentation that contacts a stop pin when the check valve is in the open position.
4 more elements
A check valve, comprising:
- a body;
- two sidewalls extending from the body;
- a pin coupled between the two sidewalls;
- and
- a flapper pivotably coupled to the pin to occupy respective open and closed positions in accordance with a pressure differential of a fluid flow across the check valve, the flapper including a flapper body formed as a plate and a backbone that is thicker than the flapper body and extends along an entire length of the flapper body,
- wherein the flapper further includes at least two hinge components that couple the flapper to the pin, the at least two hinge components coupled directly to the backbone, and wherein one of the at least two hinge components includes an extension that extends beyond an end of the backbone.
3 more elements
Dependencies are inferred from the claim text.