초록 ▼

A vented quick disconnect coupling includes male and female coupling members, each including a valve which is situated and constructed to automatically open upon coupling of the members together and automatically close upon uncoupling of the members to eliminate spilling or leakage from either coupl

A vented quick disconnect coupling includes male and female coupling members, each including a valve which is situated and constructed to automatically open upon coupling of the members together and automatically close upon uncoupling of the members to eliminate spilling or leakage from either coupling member. The valves are constructed to afford a fluid tight seal without any O-ring seals. Likewise, the valves are situated at the joining ends of the coupling members to eliminate fluid loss when the coupling members are separated. At least one of the coupling members enables venting of gas from a fluid container on which it is mounted to dispel positive or negative pressure differentials relative to the atmosphere while precluding liquid flow therethrough.

대표청구항 ▼

[ I claim:] [1.] A vented quick disconnect coupling for coupling first and second fluid carriers comprising:a male coupling member including,a generally tubular tower having a free end and a connected end,a first valve seat adjacent said free end of said tower and defining a first opening for fluid

[ I claim:] [1.] A vented quick disconnect coupling for coupling first and second fluid carriers comprising:a male coupling member including,a generally tubular tower having a free end and a connected end,a first valve seat adjacent said free end of said tower and defining a first opening for fluid flow therethrough,a first valve member reciprocally movable within said tower between a valve closed position in engagement with said first valve seat wherein fluid flow through said first opening is blocked and a valve open position in spaced relation from said first valve seat whereby fluid is free to flow through first said opening,a first biasing apparatus in said tower urging said first valve member to the valve closed position thereof,a first connector on the connected end of said tubular tower and operative to connect said tubular tower to a first fluid carrier for fluid flow therebetween,a female coupling member including,a tubular valve body having a free end and a connected end,a second valve seat adjacent said free end of said valve body and defining a second opening for fluid flow therethrough,a second valve member reciprocally movable within said valve body between a valve closed position in engagement with said second valve seat wherein fluid flow through said second opening is blocked, and a valve open position in spaced relation from said second valve seat whereby fluid is free to flow through said second opening,a second biasing apparatus in said valve member urging said second valve member to the valve closed position thereof,a second connector on the connected end of said tubular valve body and operative to connect said tubular valve body to a second fluid carrier for fluid flow therebetween,a tower receiving sleeve protruding from the free end of said tubular valve body, said sleeve defining an interior socket of a size and shape for receiving said tubular tower of said male coupling member to a substantially fluid tight coupled position,co-acting first and second valve actuators on said first and second valve members, respectively, and positioned for extension through said first and second openings for mutual engagement, the combined length of said actuators being such that, upon receipt of said tubular tower into said valve body to the coupled position thereof, both of the first and second valve members are moved to the valve open positions thereof against the urging of said first and second biasing apparatus, respectively, andat least one of said male and female coupling members including a vent system operative, upon connection of said one coupling member to a fluid carrier, to vent gas between said fluid carrier and the ambient atmosphere.