Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
238 words
A method for melt spinning, from inelastic materials, extruded lengths of predetermined cross-sections by arranging and spacing two or more spinning orifices with respect to each other so that the extruding material from each such arranged spinning orifices coalesces to form a single extruded length of predetermined cross-section, wherein the spinning orifices of each arrangement are each of non-round cross-section and has either one axis or no axis of symmetry in the plane of the spinneret and is so dimensioned that the coordinates of the centroid of the square of the velocity profile of the extruding material in the plane perpendicular to the axis of the orifice, as determined by ##EQU5## and the coordinates of the centroid of the velocity profile of the extruding material in the plane perpendicular to the axis of the orifice, as determined by ##EQU6## are non-coincident at each orifice exit so that the flow of the extruding material from the orifice has non-axisymmetric emergence behavior, where (V 2 ) centroid is the centroid of the square of the velocity profile; (V) centroid is the centroid of the velocity profile; ∫ A is the integral over the orifice cross-section area; V 2 is the square of the velocity at any radius vector location r; r is the radius vector from the origin of any set of orthogonal coordinate axes to any point r within the orifice cross-section; and dA is the differential area element.
Claim 2
Independent Claim
238 words
A method for melt spinning, from inelastic materials, extruded lengths of predetermined cross-sections by arranging and spacing two or more spinning orifices with respect to each other so that the extruding material from each such arranged spinning orifices coalesces to form a single extruded length of predetermined cross-section, wherein the spinning orifices of each arrangement are each of non-round cross-section and has either one axis or no axis of symmetry in the plane of the spinneret and is so dimensioned that the coordinates of the centroid of the square of the velocity profile of the extruding material in the plane perpendicular to the axis of the orifice, as determined by ##EQU5## and the coordinates of the centroid of the velocity profile of the extruding material in the plane perpendicular to the axis of the orifice, as determined by ##EQU6## are non-coincident at each orifice exit so that the flow of the extruding material from the orifice has non-axisymmetric emergence behavior, where (V 2 ) centroid is the centroid of the square of the velocity profile; (V) centroid is the centroid of the velocity profile; ∫ A is the integral over the orifice cross-section area; V 2 is the square of the velocity at any radius vector location r; r is the radius vector from the origin of any set of orthogonal coordinate axes to any point r within the orifice cross-section; and dA is the differential area element.
Claim 3
Dependent Claim
47 words
The method as defined in claim 1, and wherein each spinning orifice of the arrangement is formed in the configuration of a T-shaped cross-section having one axis of symmetry in the plane of the spinneret face and having an absolute value of kneeing potential greater than 0.1.
Claim 4
Dependent Claim
23 words
The method as defined in claim 2, and wherein the T-shaped spinning orifices are arranged substantially in the manner disclosed in FIG. 5.
Claim 5
Dependent Claim
23 words
The method as defined in claim 2, and wherein the T-shaped spinning orifices are arranged substantially in the manner disclosed in FIG. 7.
Claim 6
Dependent Claim
23 words
The method as defined in claim 2, and wherein the T-shaped spinning orifices are arranged substantially in the manner disclosed in FIG. 9.
Claim 7
Dependent Claim
23 words
The method as defined in claim 2, and wherein the T-shaped spinning orifices are arranged substantially in the manner disclosed in FIG. 11.
Claim 8
Dependent Claim
25 words
The method as defined in claim 2, and wherein each spinning orifice of the arrangement has an absolute value of kneeing potential greater than 0.25.
Claim 9
Dependent Claim
69 words
The method as defined in claim 1, and wherein each spinning orifice of the arrangement is formed in the configuration of a polygon having no axis of symmetry in the plane of the spinneret face and having more than four sides, each side of the polygon intersecting at right angles with an adjacent side, the polygonal cross-sectioned spinning orifice having an absolute value of kneeing potential greater than 0.1.
Claim 10
Dependent Claim
26 words
The method as defined in claim 8, and wherein each polygonal spinning orifice of the arrangement has an absolute value of kneeing potential greater than 0.25.
Claim 11
Dependent Claim
23 words
The method as defined in claim 8, and wherein the polygonal spinning orifices are arranged substantially in the manner disclosed in FIG. 13.