초록 ▼

A resilient disc check valve with a spring return mechanism is provided. The spring return mechanism is contained entirely within the valve body. The spring return mechanism is in the form of a leaf spring or similar structure which engages a back side of the disc and does not require any attachment

A resilient disc check valve with a spring return mechanism is provided. The spring return mechanism is contained entirely within the valve body. The spring return mechanism is in the form of a leaf spring or similar structure which engages a back side of the disc and does not require any attachment to the disc by way of fasteners or other mechanisms.

대표청구항 ▼

[ What is claimed is:] [1.] A check valve comprising:a valve body comprising an inlet and an outlet and defining a flow path therebetween, the valve body further comprising a recess for accommodating a hinge disposed transverse to the flow path,the hinge being connected to a disc for pivotal movemen

[ What is claimed is:] [1.] A check valve comprising:a valve body comprising an inlet and an outlet and defining a flow path therebetween, the valve body further comprising a recess for accommodating a hinge disposed transverse to the flow path,the hinge being connected to a disc for pivotal movement of the disc between a closed position isolating the outlet from the inlet and an open position providing communication between the inlet and outlet,the disc engaging a spring, the spring biasing the disc towards the closed position, the spring further comprising a proximal end that extends around the hinge and abuttingly engages the recess without penetrating the valve body, the spring further comprising a distal end that engages the disc, the spring not being fastened to the valve body,further comprising a flat portion that engages the proximal end of the spring and prevents rotational movement of the proximal end of the spring.