초록 ▼

A normally closed valve is characterized by an integral valve body forming a fluid passage between an inlet thereto and an outlet therefrom, and a flow barrier within the passage integrally joined with the body to hermetically seal the passage. The barrier is movable or rupturable by a fluid coupler

A normally closed valve is characterized by an integral valve body forming a fluid passage between an inlet thereto and an outlet therefrom, and a flow barrier within the passage integrally joined with the body to hermetically seal the passage. The barrier is movable or rupturable by a fluid coupler, inserted into the outlet end of the passage, to open the passage between the inlet thereto and the coupler. Preferably, the valve is economically formed of a plastic material, such as polyethylene, and connects at its outlet with a fluid coupler having a normally closed, movable seal at its inlet. In the use of the valve, upon movement of the inlet end of the coupler into the outlet end of the passage, the valve passage forms a fluid seal therewith prior to engagement of the barrier thereby. Continued movement of the coupler into the valve then moves the flow barrier to open the passage, and engages the coupler seal with a plunger to move the seal from a seat at the inlet to the coupler to establish the fluid passage between the inlet to the valve passage and the inlet to the coupler. In consequence of forming a seal between the valve and coupler prior to opening of either the flow barrier or the coupler seal, a connection may be established between the coupler and the valve in a drip-free manner, and the fluid to be valved is at all times maintained out of contact with the atmosphere and in a sanitary condition.

대표청구항 ▼

In a combination of a fluid valve and coupler therefor, said valve comprising a valve body having an inlet and an outlet and a passage therethrough between said inlet and said outlet and a breakable flow barrier in said passage spaced from said outlet and hermetically sealing said inlet from said ou

In a combination of a fluid valve and coupler therefor, said valve comprising a valve body having an inlet and an outlet and a passage therethrough between said inlet and said outlet and a breakable flow barrier in said passage spaced from said outlet and hermetically sealing said inlet from said outlet, said coupler comprising a coupler body having an inlet end and a channel therethrough and a channel seal normally closing the inlet end of said channel, said seal being movable into said channel to open said channel, said coupler body and channel seal being movable into said valve passage outlet to engage and break said flow barrier with said channel seal to open said passage, and means connected with said valve body within said passage to the side of said barrier toward said passage inlet for moving said channel seal into said channel after the breaking of said barrier to establish a fluid conduit between said passage and said channel.