US3826163A
Expired / Lapsed
US
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Method for applying pressure in cutting elongated flexible material into predetermined shorter lengths, and apparatus for practicing the improved method
Assignee: Eastman Kodak Co
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Filing: 1973-07-05
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Granted: 1974-07-30
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Expires: 1993-07-05
Abstract
Abstract Improved method for applying pressure in cutting elongated flexible material in the manner by which cutting occurs in the Keith U.S. Pat. No. 3,485,120 and the Coffin et al. U.S. Pat. No. 3,557,648, and to apparatus for practicing the method. The elongated flexible material is continuously wrapped in successive radially outwardly disposed layers around a circular cutter assembly having a plurality of knives spaced around the cutter assembly with the knife edges facing radially outwardly and with the innermost layer of material positioned in contact with the knife edges. The improved method involves applying against and over an arcuate surface portion of the continuously forming outer layer of material pressure distributed over an arc eccentric to and of greater radius than the radius of the arcuate surface portion. The apparatus for practice of the method preferably involves the use of a pressure ring encircling the layers of material wrapped around the cutter assembly and having a greater diameter than the wrapped layers, and eccentrically displacing the pressure ring relative to the cutter assembly.
Inventors
- 👤 A Spaller
- 👤 B Stockbridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:20
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/02; D01G1/04; Y; Y10; Y10S; Y10S83/00; Y10S83/913; Y10T; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/0419; Y10T83/0424; Y10T83/0433; Y10T83/0515; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/483; Y10T83/4838; Y10T83/788; Y10T83/793; Y10T83/798
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
119 words
The method of cutting elongated material into predetermined lengths comprising: continuously wrapping the elongated flexible material in successive radially outwardly disposed layers around a circular cutter assembly having a plurality of knIves spaced around the cutter assembly with their edges facing radially outwardly and with the innermost layer of material positioned in contact with the knife edges; applying against and over an arcuate surface portion of the continuously forming outer layer pressure distributed over an arc eccentric to and of greater radius than said arcuate surface portion; and continuously cutting into said predetermined lengths and radially inwardly of the applied pressure the continuously forming innermost layer of material by movingly pressing the innermost layer inwardly of the knife edges.
Claim 2
Independent Claim
119 words
The method of cutting elongated material into predetermined lengths comprising: continuously wrapping the elongated flexible material in successive radially outwardly disposed layers around a circular cutter assembly having a plurality of knIves spaced around the cutter assembly with their edges facing radially outwardly and with the innermost layer of material positioned in contact with the knife edges; applying against and over an arcuate surface portion of the continuously forming outer layer pressure distributed over an arc eccentric to and of greater radius than said arcuate surface portion; and continuously cutting into said predetermined lengths and radially inwardly of the applied pressure the continuously forming innermost layer of material by movingly pressing the innermost layer inwardly of the knife edges.
Claim 3
Dependent Claim
33 words
The method of cutting elongated flexible material into predetermined lengths as defined in claim 1, and wherein the elongated flexible material is continuously wrapped around the cutter assembly by rotating the cutter assembly.
Claim 4
Dependent Claim
28 words
The method of cutting elongated flexible material into predetermined lengths as defined in claim 1, and wherein the elongated flexible material is continuously wrapped around a stationary assembly.
Claim 5
Independent Claim
199 words
The method of cutting into predetermined lengths filamentary tow material comprised of filaments having crimps therein, and comprising: continuously wrapping the filamentary tow material in successive radially outwardly disposed layers around a circular cutter assembly having a plurality of knives spaced around the cutter assembly with their knife edges facing radially outwardly and with the innermost layer of material positioned in contact with the knife edges; tensioning the outermost continuously forming layer to an extent sufficient so as to straighten out the crimp in the filaments of the tow without permanently removing the crimp and moving the layers that are inwardly of the outermost layer toward the knife edges to thereby relax the tension on the innermost layers of material so that the crimp in the filaments of the innermost layers recover to a desired predetermined extent; applying against and over an arcuate surface portion of the continuously forming outermost layer pressure distributed over an arc eccentric to and of greater radius than said arcuate surface portion; and continuously cutting into said predetermined lengths and radially inwardly of the applied pressure the continuously forming innermost layer of material by movingly pressing the innermost layer inwardly of the knife edges.
Claim 6
Independent Claim
199 words
The method of cutting into predetermined lengths filamentary tow material comprised of filaments having crimps therein, and comprising: continuously wrapping the filamentary tow material in successive radially outwardly disposed layers around a circular cutter assembly having a plurality of knives spaced around the cutter assembly with their knife edges facing radially outwardly and with the innermost layer of material positioned in contact with the knife edges; tensioning the outermost continuously forming layer to an extent sufficient so as to straighten out the crimp in the filaments of the tow without permanently removing the crimp and moving the layers that are inwardly of the outermost layer toward the knife edges to thereby relax the tension on the innermost layers of material so that the crimp in the filaments of the innermost layers recover to a desired predetermined extent; applying against and over an arcuate surface portion of the continuously forming outermost layer pressure distributed over an arc eccentric to and of greater radius than said arcuate surface portion; and continuously cutting into said predetermined lengths and radially inwardly of the applied pressure the continuously forming innermost layer of material by movingly pressing the innermost layer inwardly of the knife edges.
Claim 7
Dependent Claim
27 words
The method of cutting elongated flexible material into predetermined lengths as defined in claim 3, and wherein the applied pressure is moved around the stationary cutter assembly.
Claim 8
Dependent Claim
36 words
The method of cutting elongated flexible material into predetermined lengths as defined in claim 2, and wherein the applied pressure is retained in one position with respect to the cutter assembly as the cutter assembly rotates.
Claim 9
Dependent Claim
121 words
Apparatus for cutting elongated flexible material into predetermined lengths and comprising: a cutting assembly having a plurality of knives spaced around the cutter assembly with their edges facing radially outwardly; means for continuously wrapping the flexible material in successive radially outwardly disposed layers around the cutter assembly with the innermost layer of material positioned in contact with the knife edges; and means for applying against and over an arcuate surface portion of the continuously forming outer layer pressure distributed over an arc eccentric to and of greater radius than said arcuate surface portion whereby radially inwardly of the applied pressure said innermost layer of material is moved inwardly of the knife edges by the pressure and cut into said predetermined lengths.
Claim 10
Dependent Claim
121 words
Apparatus for cutting elongated flexible material into predetermined lengths and comprising: a cutting assembly having a plurality of knives spaced around the cutter assembly with their edges facing radially outwardly; means for continuously wrapping the flexible material in successive radially outwardly disposed layers around the cutter assembly with the innermost layer of material positioned in contact with the knife edges; and means for applying against and over an arcuate surface portion of the continuously forming outer layer pressure distributed over an arc eccentric to and of greater radius than said arcuate surface portion whereby radially inwardly of the applied pressure said innermost layer of material is moved inwardly of the knife edges by the pressure and cut into said predetermined lengths.
Claim 11
Dependent Claim
34 words
Apparatus for cutting elongated flexible material into predetermined lengths as defined in claim 7, and including means for rotating the cutter assembly so as to continuously wrap the flexible material around the cutter assembly.
Claim 12
Dependent Claim
34 words
Apparatus for cutting elongated flexible material into predetermined lengths as defined in claim 7, and wherein the cutter assembly is stationary and means is provided fOr wrapping the flexible material around the cutter assembly.
Claim 13
Dependent Claim
43 words
Apparatus for cutting elongated flexible material into predetermined lengths as defined in claim 7, and wherein said means for applying pressure includes a member having a concave surface adapted to engage said arcuate surface portion of the continuously forming outer layer of material.
Claim 14
Dependent Claim
28 words
Apparatus for cutting elongated flexible material into predetermined lengths as defined in claim 10, and wherein said concave surface is relatively moveable with respect to the cutter assembly.
Claim 15
Dependent Claim
83 words
Apparatus for cutting elongated flexible material into predetermined lengths as defined in claim 7, and wherein said means for applying pressure comprises a pressure ring having a diameter greater than the diameter of the radially outwardly facing knife edges and being positioned in encompassing relationship around the cutter assembly in alignment with the knife edges, and pressure roller means positioned radially outwardly of the pressure ring and adapted to bear against and eccentrically displace the pressure ring with respect to the cutter assembly.
Claim 16
Dependent Claim
29 words
Apparatus for cutting elongated flexible material into predetermined lengths as defined in claim 12, and wherein said pressure roller means is adjustable toward and away from the cutter assembly.
Claim 17
Dependent Claim
66 words
Apparatus for cutting elongated flexible material into predetermined lengths as defined in claim 12, and wherein said cutter assembly is stationary and said pressure roller means moves around the cutter assembly and the pressure ring as the pressure roller means bears against the pressure ring, the pressure ring in turn being continuously eccentrically displaced and thus moved around the cutter assembly by the pressure roller means.
Claim 18
Dependent Claim
160 words
Apparatus for cutting elongated flexible material into predetermined lengths and comprising: a circular cutting assembly having a plurality of knives spaced around the cutter assembly with their edges facing radially outwardly; means for driving the cutter assembly in rotation, the rotating cutter assembly thereby continuously wrapping the flexible material in successive radially outwardly disposed layers around the cutter assembly with the innermost layer of material positioned in contact with the knife edges; freely movable means encompassing the continuously forming outer layer of material; and means adapted to bear against and urge the freely movable means into a pressure engagement against a portion of the continuously forming outer layers, the freely movable means being therefore driven in rotation by its engagement with the continuously forming outer layer of material, the continuously forming inner layer of material radially inwardly of the portion engaged by the freely movable means being moved inwardly of the knife edges and thus cut into said predetermined lengths.
Claim 19
Dependent Claim
160 words
Apparatus for cutting elongated flexible material into predetermined lengths and comprising: a circular cutting assembly having a plurality of knives spaced around the cutter assembly with their edges facing radially outwardly; means for driving the cutter assembly in rotation, the rotating cutter assembly thereby continuously wrapping the flexible material in successive radially outwardly disposed layers around the cutter assembly with the innermost layer of material positioned in contact with the knife edges; freely movable means encompassing the continuously forming outer layer of material; and means adapted to bear against and urge the freely movable means into a pressure engagement against a portion of the continuously forming outer layers, the freely movable means being therefore driven in rotation by its engagement with the continuously forming outer layer of material, the continuously forming inner layer of material radially inwardly of the portion engaged by the freely movable means being moved inwardly of the knife edges and thus cut into said predetermined lengths.
Claim 20
Dependent Claim
185 words
Apparatus for cutting elongated flexible material into predetermined lengths and comprising: a circular cutting assembly having a plurality of knives spaced around the cutter assembly with their edges facing radially outwardly; means for continuously wrapping the flexible material in successive radially outwardly disposed layers around the cutter assembly with the innermost layer of material positioned in contact with the knife edges; freely movable means encompassing the continuously forming outer layer of material; pressure roller means adapted to bear against and urge the freely movable means into a pressure engagement against a portion of the continuously outer layer; and means for moving the pressure roller means around the cutter assembly and the freely movable means, the freely movable means being therefore moved in rotation and moved around the cutter assembly by its engagement on one side with the continuously forming outer layer of material and with the pressure roller means on the other side, the continuously forming inner layer of material radially inwardly of the portion engaged by the freely movable meAns being moved inwardly of the knife edges and thus cut into said predetermined lengths.
Claim 21
Dependent Claim
185 words
Apparatus for cutting elongated flexible material into predetermined lengths and comprising: a circular cutting assembly having a plurality of knives spaced around the cutter assembly with their edges facing radially outwardly; means for continuously wrapping the flexible material in successive radially outwardly disposed layers around the cutter assembly with the innermost layer of material positioned in contact with the knife edges; freely movable means encompassing the continuously forming outer layer of material; pressure roller means adapted to bear against and urge the freely movable means into a pressure engagement against a portion of the continuously outer layer; and means for moving the pressure roller means around the cutter assembly and the freely movable means, the freely movable means being therefore moved in rotation and moved around the cutter assembly by its engagement on one side with the continuously forming outer layer of material and with the pressure roller means on the other side, the continuously forming inner layer of material radially inwardly of the portion engaged by the freely movable meAns being moved inwardly of the knife edges and thus cut into said predetermined lengths.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |