A refrigerator includes a main body, a dispenser configured to supply water to the outside of the main body, a water supply flow path connecting the dispenser to a water source; and a valve assembly disposed on the water supply flow path, wherein the valve assembly comprises an elastic member having an outlet whose diameter is reduced by an elastic force, when water is no longer supplied to the valve assembly, so that water remaining in the inside of the water supply flow path is kept by the surface tension of the water.

A device and method for selectively closing and opening a flow path through a sealing element. The device includes second and third tubulars positioned within a bore of a first tubular. A sealing element having a bore is positioned between the second and third tubulars within the bore of the first tubular. The sealing element may be connected to one or both of the tubulars. Bores of the second and third tubulars communicate with the bore of the sealing element to provide a flow path. Movement of the third tubular with respect to the second tubular buckles the sealing element inward to selectively close a portion of the flow path. The third tubular may be moved away from the second tubular to reopen the flow path. The sealing element may engage a structure within the bore of the sealing element to selectively close the flow path through the sealing element.

A device and method for selectively closing and opening a flow path through a sealing element. The device includes second and third tubulars positioned within a bore of a first tubular. A sealing element having a bore is positioned between the second and third tubulars within the bore of the first tubular. The sealing element may be connected to one or both of the tubulars. Bores of the second and third tubulars communicate with the bore of the sealing element to provide a flow path. Movement of the third tubular with respect to the second tubular buckles the sealing element inward to selectively close a portion of the flow path. The third tubular may be moved away from the second tubular to reopen the flow path. The sealing element may engage a structure within the bore of the sealing element to selectively close the flow path through the sealing element.

A valve for controlling fluid flow from an inlet of a pipe fitting to at least one outlet of the pipe fitting at an angle to the inlet. The pipe fitting includes an inner collapsible bellows fixed at a position opposite the inlet. The bellows has a support annulus at the other end adjacent the inlet, whereby, in a closed position, the bellows prevents fluid flow from the inlet to the at least one outlet as the fluid is trapped within the bellows. In an open position, the fluid can flow from the inlet to the at least one outlet when the bellows is collapsed.

A valve for controlling fluid flow from an inlet of a pipe fitting to at least one outlet of the pipe fitting at an angle to the inlet. The pipe fitting includes an inner collapsible bellows fixed at a position opposite the inlet. The bellows has a support annulus at the other end adjacent the inlet, whereby, in a closed position, the bellows prevents fluid flow from the inlet to the at least one outlet as the fluid is trapped within the bellows. In an open position, the fluid can flow from the inlet to the at least one outlet when the bellows is collapsed.

Embodiments disclosed herein provide systems and methods for an in-ground sprinkler to controller a liquid flow rate through a chamber, while reducing or eliminating leakage. Embodiments may utilize a flat, external surface that is configured to be flush with a ground surface to control the liquid flow rate through the in-ground sprinkler. In embodiments, a permanent magnet may be positioned on the flat, external surface to control an internal patch system. Responsive to the permanent magnet controlling the internal patch, liquid flowing through the chamber may be controlled.

A valve for controlling fluid flow from an inlet of a pipe fitting to at least one outlet of the pipe fitting at an angle to the inlet. The pipe fitting includes an inner collapsible bellows fixed at a position opposite the inlet. The bellows has a support annulus at the other end adjacent the inlet, whereby, in a closed position, the bellows prevents fluid flow from the inlet to the at least one outlet as the fluid is trapped within the bellows. In an open position, the fluid can flow from the inlet to the at least one outlet when the bellows is collapsed.

Embodiments disclosed herein provide systems and methods for an in-ground sprinkler to controller a liquid flow rate through a chamber, while reducing or eliminating leakage. Embodiments may utilize a flat, external surface that is configured to be flush with a ground surface to control the liquid flow rate through the in-ground sprinkler. In embodiments, a permanent magnet may be positioned on the flat, external surface to control an internal patch system. Responsive to the permanent magnet controlling the internal patch, liquid flowing through the chamber may be controlled.

A valve for controlling fluid flow from an inlet of a pipe fitting to at least one outlet of the pipe fitting at an angle to the inlet. The pipe fitting includes an inner collapsible bellows fixed at a position opposite the inlet. The bellows has a support annulus at the other end adjacent the inlet, whereby, in a closed position, the bellows prevents fluid flow from the inlet to the at least one outlet as the fluid is trapped within the bellows. In an open position, the fluid can flow from the inlet to the at least one outlet when the bellows is collapsed.

A valve for controlling fluid flow from an inlet of a pipe fitting to at least one outlet of the pipe fitting at an angle to the inlet. The pipe fitting includes an inner collapsible bellows fixed at a position opposite the inlet. The bellows has a support annulus at the other end adjacent the inlet, whereby, in a closed position, the bellows prevents fluid flow from the inlet to the at least one outlet as the fluid is trapped within the bellows. In an open position, the fluid can flow from the inlet to the at least one outlet when the bellows is collapsed.