Valve for urinary drainage container or similar article

A fluid flow valve comprising:

• a first tubular member having a flow passageway means therethrough and a tapered valve seat formed in said flow passageway means;
• a second tubular member having a flow passageway means therethrough and a valve element fixedly mounted therein on the axis of said second tubular member, said first and second tubular members being telescopically engaged with each other with said first tubular member slidably positioned inside said second tubular member, said valve element of said second tubular member having a tapered valve surface thereon adapted for sealing engagement with said tapered valve seat of said first tubular member when said tubular members are telescoped axially one inside the other, said tapered valve element and said tapered valve seat having self-holding taper angles so that when said valve element is firmly seated in said valve seat the parts will be retained in mating engagement without the need for some type of additional retaining means to hold the parts in closed position, said flow passageway means including at least one flow passageway positioned adjacent said valve element which will be blocked when said tapered valve surface of said valve element is moved into sealing engagement with said tapered valve seat of said first tubular member and which will be opened to allow flow through the valve when said valve element is moved out of sealing engagement with said valve seat surface;
• and
• said fluid flow valve further characterized by having the end of said second tubular member within which said first tubular member is telescopically positioned extending over and engaging the outer surface of said first tubular member so that any tendency of the valve seat to be expanded outwardly due to the wedging action of the parts will be restrained not only by the inherent strength of said first tubular member but also by the reinforcing action of that portion of said second tubular member which fits over the outside surface of said first tubular member.

The combination of a flexible urinary drainage container and a drainage valve therefor comprising:

• a sealed container having a drainage opening in the bottom portion thereof;
• a two-piece drainage valve attached to said container for controlling the flow from said container through said drainage opening;
• said two-piece valve comprising a first tubular member having a flow passageway means therethrough and a tapered valve seat formed in said flow passageway means, and a second tubular member having a flow passageway means therethrough and a valve element fixedly mounted therein on the axis of said second tubular member, said first and second tubular members being telescopically engaged with each other with said first tubular member slidably positioned inside said second tubular member, said valve element of said second tubular member having a tapered valve surface thereon adapted for sealing engagement with said tapered valve seat of said first tubular member when said tubular members are telescoped axially one inside the other, said tapered valve element and said tapered valve seat having self-holding taper angles so that when said valve element is firmly seated in said valve seat the parts will be retained in mating engagement without the need for some type of additional retaining means to hold the parts in closed position, said flow passageway means of said first tubular member including at least one flow passageway positioned adjacent said valve element which will be blocked when said tapered valve surface of said valve element is moved into sealing engagement with said tapered valve seat of said first tubular member and which will be opened to allow flow through the valve when said valve element is moved out of sealing engagement with said valve seat surface;
• and
• said combination further characterized by having the end of said second tubular member within which said first member is telescopically positioned extending over and engaging the outer surface of said first tubular member so that any tendency of the valve seat to be expanded outwardly due to the wedging action of the parts will be restrained not only by the inherent strength of said first tubular member but also by the reinforcing action of that portion of said second tubular member which fits over the outside surface of said first tubular member.

A two-piece valve comprising:

• a first tubular member of deformable plastic material having a flow passageway means therethrough and a tapered valve seat formed in one end thereof;
• and
• a second tubular member of deformable plastic material having a flow passageway means therethrough and a valve element mounted therein including support means for fixedly supporting said valve element on the axis of said second tubular member, said first and second tubular members being telescopically engaged with each other with said one end of said first tubular member slidably positioned inside one end of said second tubular member, said valve element having a tapered valve surface thereon adapted for sealing engagement with said tapered valve seat of said first tubular member when said tubular members are telescoped axially one inside the other to thereby shut off communication between opposite ends of the valve, said tapered valve element and said tapered valve seat having self-holding taper angles so that when said valve element is firmly seated in said valve seat the parts will be retained in mating engagement without the need for some type of additional retaining means to hold the parts in closed position, said tapered valve seat effectively extending beyond the end of said valve element when said valve element is seated in said valve seat so that as the material of said first and second members becomes deformed slightly due to repeated actuation of the value members between open and closed positions the valve element will continue to firmly seat in said valve seat, said valve element support means having at least one flow passageway therethrough to allow flow through the valve when said valve element is moved out of sealing engagement with said valve seat surface of said first tubular member.

The combination of a flexible urinary drainage container and a drainage valve therefor comprising:

• a sealed container having a drainage opening in the bottom portion thereof;
• a two-piece drainage valve attached to said container for controlling the flow from said container through said drainage opening;
• said two-piece valve comprising a first tubular member made of a deformable plastic material having a flow passageway means therethrough and a tapered valve seal formed in said flow passageway means, and a second tubular member made of a deformable plastic material having a flow passageway means therethrough and a valve element fixedly mounted therein on the axis of said second tubular member, said first and second tubular members being telescopically engaged with each other with said first tubular member slidably positioned inside said second tubular member, said valve element of said second tubular member having a tapered valve surface thereon adapted for sealing engagement with said tapered valve seat of said first tubular member when said tubular members are telescoped axially one inside the other, said tapered valve element and said tapered valve seat having self-holding taper angles so that when said valve element is firmly seated in said valve seat the parts will be retained in mating engagement without the need for some type of additional retaining means to hold the parts in closed position, said tapered valve seat effectively extending beyond the end of said valve element when said valve element is seated in said valve seat so that as the material of said first and second members becomes deformed slightly due to repeated actuation of the valve members between open and closed positions the valve element will continue to firmly seat in said valve seat, said flow passageway means of said first tubular member including at least one flow passageway positioned adjacent said valve element which will be blocked when said tapered valve surface of said valve element is moved into sealing engagement with said tapered valve seat of said first tubular member and which will be opened to allow flow through the valve when said valve element is moved out of sealing engagement with said valve seat surface.