Foam generating device

A device for producing foams, by admixing foamable liquids and gases, comprising a hollow mixing chamber, having a peripheral side wall and a proximal opening through which said foams are discharged;

• inlet means for passing said foamable liquids from a liquid source therefor into said mixing chamber;
• porous means, situated between said opening and said inlet means for passing said gases, from a gas source therefor, into said mixing chamber;
• and the foamable liquid source comprising a container with an opening closed by a cap and wherein said cap comprises inlet means in fluid connection with a pressurized gas source and outlet means in fluid connection with said mixing chamber;
• said mixing chamber being situated within said container on the distal side of the cap, and comprising a proximal hollow extension passing through the outlet port of said container, said extension being terminated at its proximal end by an opening for discharge of the foam, and a distal extension comprising a hollow tube in fluid connection with the inlet means of the mixing chamber and a portion of the peripheral wall of the mixing chamber comprising said gas permeable porous means which is in fluid connection with both the mixing chamber and container, whereby a portion of the pressurized gas passing into the container enters the mixing chamber to mix with the foamable liquid entering thereinto through the inlet means thereof.

A foam dispensing device comprising:

• a) a foam generating device for producing foams by admixing foamable liquids and gases wherein said device comprises a hollow mixing chamber comprising a peripheral side wall and a proximal opening through which said foams are discharged;
• inlet means for passing said foamable liquids from a source therefor into said mixing chamber and porous means for passing said gases only from a source therefor into said mixing chamber transversely to said foamable liquids, wherein said porous means is situated between said proximal opening and liquid inlet means;
• and
• b) a foamable liquid source comprising a container with an opening closed by a cap and wherein said cap comprises inlet means in fluid connection with a pressurized gas source and outlet means in fluid connection with said mixing chamber.

A foam dispensing device comprising;

• a foam generating device for producing foams by admixing foamable liquids and gases wherein said device comprises a hollow mixing chamber having a peripheral side wall and a proximal opening through which said foams are discharged;
• inlet means for passing said foamable liquids from a source therefor into said mixing chamber and porous means for passing said gases from a source therefor into said mixing chamber and wherein said porous means is situated between said proximal opening and liquid inlet means;
• a foamable liquid source comprising a container with an opening closed by a cap and wherein said cap comprises inlet means in fluid connection with a pressurized gas source and outlet means in fluid connection with said mixing chamber;
• said mixing chamber being situated within said container on the distal side of the cap, and comprising a proximal hollow extension passing through the outlet port of said container, said extension being terminated at its proximal end by an opening for discharge of the foam, a distal extension comprising a hollow tube in fluid connection with the inlet means of the mixing chamber and a portion of the peripheral wall of the mixing chamber
• comprising said gas permeable porous means which is in fluid connection with both the mixing chamber and container, whereby a portion of the pressurized gas passing into the container enters the mixing chamber to mix with the foamable liquid entering thereinto through the inlet means therefor.