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US 2017/0304858 A1Published application
Fluid transport media
OwnerWilliam K. Leonardinventor
Life of this patent
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Abstract
Improved apparatus and methods for filtering and applying coating fluids onto substrates. The apparatus and methods are useful for casting embossed sheeting, and in fluid application dies. Improved fluid filtration methods, apparatus, elements and media are also disclosed. An apparatus and method for collection of mist generated in high speed liquid film splitting processes are also disclosed.
Claims21
A slot fluid distribution apparatus comprising:
- bounding first and second surfaces;
- bounding edge walls spanning between the first and second surfaces;
- an open space volume enclosed by the walls and surfaces;
- a slit orifice access passageway to the volume having a slit orifice length on a portion of the edge walls;
- at least one fluid first access passageway to the volume;
- wherein the passageways and the open space volume, are fluidically connected,
- and
- wherein the volume has a first flow resistances in a first direction and a second flow resistances in a second direction which are not equal.
5 more elements
2-24. (canceled)
A method of dispensing flowable material in a die comprising:
- providing a source of flowable material;
- providing a die block including a first flowable material terminal point, a second flowable material terminal point, a flow path connecting the terminal points, and at least one distribution slot, wherein the slot includes
- bounding first and second solid walls,
- bounding edge walls spanning between the first and second walls,
- an open space volume enclosed by the walls,
- at least one first access port to the open space volume,
- a slit orifice access port having a slit orifice length on the edge walls,
- flowable material first flow resistances in the slot in a first direction,
- flowable material second flow resistances in the slot in a second direction, and
- the average first resistance does not equal the average second resistance;
- fluidically connecting the access ports, the terminal points, the slit orifice and the open space volume;
- and
- translationing the flowable through the slit orifice access port.
10 more elements
Dependencies are inferred from the claim text.