Low volume mixing spray head for mixing and dispensing of two reactive fluid components

An apparatus for mixing and ejecting a multi-component fluid mixture, comprising:

• a body portion having a substantially cylindrical mixing space therein defined by a cylindrical side wall having a height, a lower wall and an upper wall and formed around a central axis;
• an exit orifice defined by said lower wall;
• at least two entry ports each having a width defined by said cylindrical side wall, wherein the width of each entry port is substantially the same as the height of said side wall, and wherein said entry ports are adapted to communicate with at least two separate fluid component sources and separately provide said fluid components to said mixing space;
• said entry ports disposed to direct said fluid components entering therethrough against said side wall so as to impart rotational motion to the at least two fluid components, whereby the at least two fluid components become thoroughly mixed into the multi-component fluid mixture and exit said mixing space through said exit orifice.

An apparatus for mixing and ejecting a multi-component fluid mixture, comprising:

• a body portion having a substantially cylindrical mixing space therein defined by a cylindrical side wall having a height, a lower wall and an upper wall and formed around a central axis;
• an exit orifice defined by said lower wall;
• two entry ports each having a width defined by and tangent to said side wall, wherein each of said entry port's width is substantially the same size as said height of said side wall, and wherein said two entry ports enter said mixing space across from each other;
• two fluid component sources fluidly connected to said two entry ports;
• means for pressurizing said two fluid component sources, whereby two fluid components separately enter said mixing space, said side wall imparts rotational motion to said two fluid components, said two fluid components become thoroughly mixed into said multi-component fluid mixture and said multi-component fluid mixture exits said mixing space through said exit orifice;
• and
• a valve stem with a distal end and a proximal end, said valve stem movably extending along said central axis having an open position and a closed position, said distal end configured and dimensioned to substantially occupy said mixing space when said valve stem is in the closed position, whereby said distal end substantially seals said two entry ports and forces substantially all fluid components remaining in said mixing space out through said exit orifice when said valve stem is in said closed position.

An apparatus for mixing and ejecting a multi-component fluid mixture, comprising:

• a body portion having a substantially conical mixing space therein defined by a side wall having a height and an upper wall and formed about a central axis;
• an exit orifice, wherein said side wall narrows towards said exit orifice;
• two entry ports each having a width defined by and tangent to said side wall, wherein the width of each entry port is substantially the same as said height of said side wall, and wherein said two entry ports enter said mixing space across from each other;
• at least two fluid component sources fluidly connected to said at least two entry ports;
• means for pressurizing said two fluid component sources, whereby at least two fluid components separately enter said mixing space, said side wall imparts rotational motion to said at least two fluid components, said at least two fluid components become thoroughly mixed into said multi-component fluid mixture and said multi-component fluid mixture exits said mixing space through said exit orifice;
• and
• a valve stem with a distal end and a proximal end, said valve stem movably extending along said central axis having an open position and a closed position, said distal end configured and dimensioned to substantially occupy said mixing space when said valve stem is in the closed position, whereby said distal end substantially seals said two entry ports and forces substantially all fluid components remaining in said mixing space out through said exit orifice when said valve stem is in said closed position.

An apparatus for mixing and ejecting a multi-component fluid mixture, comprising:

• a mixing space defined by a substantially circular sidewall formed around a central axis, where said circular side wall has a height and defines at least two entry ports there through, and wherein each entry port has a width that is substantially the same as the height of said side wall;
• and
• a lower wall substantially transverse to said central axis, said lower wall defining a central exit orifice there through,
• such that fluid components entering said mixing space through said entry ports impinge on said side wall to impart a rotational motion to the fluid components, thoroughly mixing the fluid components into a multi-component fluid mixture which exits said mixing space through said exit orifice.