Self-sealing slot nozzle die

A self-sealing die for use with a coating dispenser which includes a coating material supply passage and a plunger movable within the supply passage, comprising:

• a first die body having a first tapered projection defined by a substantially vertical inward surface and a tapered outer wall, said first die body further having a tab member depending therefrom and horizontally spaced from said first tapered projection to define a die seat therebetween;
• a second die body having a second tapered projection defined by a substantially vertical inward surface and a tapered outer wall, said second die body being adapted to be slidably received in said die seat thereby to define a coating material outlet between said substantially vertical inward surfaces of said first and second tapered projections, said tapered outer walls respectively partially defining inward surfaces of two air channels disposed at an angle with respect to said coating material outlet;
• and
• two air blocks, each having a tapered inward surface juxtaposed in operative disposition near one of said tapered outer walls of said first and second tapered projections to form one of said air channels therebetween, one of said air blocks being slidably received intermediate said tab member and said second tapered projection and further being operable to cooperate with said tab member for translating said second tapered projection toward said first tapered projection to seal said first and second die bodies.

A self-sealing die for use with a coating dispenser which includes a coating material supply passage and a plunger movable within the supply passage, comprising:

• a first die body having a first tapered projection defined by a substantially vertical inward surface and a tapered outer wall, said first die body further having a deflectable tab member depending therefrom and horizontally spaced from said first tapered projection to define a die seat therebetween;
• a second die body having a second tapered projection defined by a substantially vertical inward surface and a tapered outer wall, said second die body being adapted to be slidably received in said die seat thereby to define a coating material outlet between said substantially vertical inward surfaces of said first and second tapered projections, said tapered outer walls respectively partially defining inward surfaces of two air channels disposed at an angle with respect to said coating material outlet;
• and
• two air blocks, each having a tapered inward surface juxtaposed in operative disposition near one of said tapered outer walls of said first and second tapered projections to form one of said air channels therebetween, one of said air blocks being slidably received intermediate said deflectable tab member and said second tapered projection and further having a tapered outer surface which cooperates with a substantially vertical inward surface of said deflectable tab member for translating said second tapered projection toward said first tapered projection to seal said first and second die bodies.

A self-sealing die for use with a coating dispenser which includes a coating material supply passage and a plunger movable within the supply passage, comprising:

• a first die body having a first tapered projection and a deflectable tab member depending therefrom, said first tapered projection and said deflectable tab member being horizontally spaced thereby to define a die seat therebetween;
• a second die body having a second tapered projection depending therefrom, said second die body being adapted to be slidably received in said die seat in a substantially vertical direction thereby to define a coating material outlet between inward surfaces of said first and second tapered projections, said first and second tapered projections further including outer surfaces which partially define two air channels disposed at an angle with respect to said coating material outlet;
• and
• two air blocks, each having a tapered inward surface juxtaposed in operative disposition near one of said outer surfaces of said first and second tapered projections to form one of said air channels therebetween, one of said air blocks being slidably received intermediate said deflectable tab member and second tapered projection in a substantially vertical direction, said deflectable tab member being operable to deflect in a substantially horizontal direction responsive to movement of said one air block in said vertical direction for translating said second tapered projection toward said first tapered projection to seal said first and second die bodies.