An apparatus comprising a die having at least one application slot. The
slot is in fluid communication with a die cavity. An expansible chamber
device is disposed within the die cavity and changes volume in response
to changes in pressure within the expansible chamber device. Another
aspect of the invention is a method of translating a liquid through a
die. A coating die is provided. The die comprises at least one applicator
slot in fluid communication with a die cavity. An expansible chamber
device is disposed within the cavity. The expansible chamber device is
actuated by changes in the fluid pressure within the expansible chamber
device. The liquid is translated through the die and delivered from the
application slot at intervals corresponding to actuation of the
expansible chamber device. Another aspect of the invention is a method
for forming a die. An apparatus comprising a die having at least one
applicator slot in fluid communication with the die cavity is provided.
An expansible chamber device is disposed within the die cavity.