US3881379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of automatically cutting out material pieces from a web in conformance with a scanned cutting pattern
Assignee: Individual
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Filing: 1973-06-13
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Granted: 1975-05-06
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Expires: 1993-06-13
Abstract
Abstract A method of automatically cutting out material pieces from a web in conformance with a cutting pattern including scanning a line of predetermined width defining a pattern cutting line, orienting a sensor arrangement along at least one edge of the line, or centrally thereof, transmitting a signal from the sensor arrangement to a control device in dependance upon the intensity of the signal received, and actuating a cutting knife for cutting the material web pursuant to the evaluation of the sensor signal.
Inventors
- 👤 Gunter Otto Stumpf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:36
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/38; A; A41; A41H; A41H3/00; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q35/127; B23Q35/128; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/936; Y10S83/939; Y10S83/94; Y10T; Y10T83/00; Y10T83/04; Y10T83/0524; Y10T83/0572; Y10T83/0605; Y10T83/525; Y10T83/533; Y10T83/869; Y10T83/875
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
201 words
A method of automatically cutting out material pieces from a material web in conformance with a cutting pattern of pattern segments, said cutting pattern being formed by a continuous line of predetermined width, comprising; automatically scanning said line with a sensor arrangement sensitive to distinctions between said line and the background of said cutting pattern; transmitting a signal generated in response to sensed distinctions to a control installation; and imparting a cutting movement to a cutting tool for said material in conformance with the signal received by said control installation, said continuous line having portions extending between at least two adjacent pattern segments of said cutting pattern and being in coincident or crossing relationship in at least one location, said sensor arrangement including photo scanning means, conveying said photo scanning means along the center of said line in an oriented relationship with reference to both edges of said line, said line having a portion extending between at least two pattern segments of said cutting pattern in crossover configuration at a crossing angle of about 90*, and forming corners on said pattern segments through the crossing point of a loop formed in said line, said loop extending away from said pattern segment.
Claim 2
Independent Claim
201 words
A method of automatically cutting out material pieces from a material web in conformance with a cutting pattern of pattern segments, said cutting pattern being formed by a continuous line of predetermined width, comprising; automatically scanning said line with a sensor arrangement sensitive to distinctions between said line and the background of said cutting pattern; transmitting a signal generated in response to sensed distinctions to a control installation; and imparting a cutting movement to a cutting tool for said material in conformance with the signal received by said control installation, said continuous line having portions extending between at least two adjacent pattern segments of said cutting pattern and being in coincident or crossing relationship in at least one location, said sensor arrangement including photo scanning means, conveying said photo scanning means along the center of said line in an oriented relationship with reference to both edges of said line, said line having a portion extending between at least two pattern segments of said cutting pattern in crossover configuration at a crossing angle of about 90*, and forming corners on said pattern segments through the crossing point of a loop formed in said line, said loop extending away from said pattern segment.
Claim 3
Independent Claim
286 words
A method of automatically cutting out material pieces from a material web in conformance with a cutting pattern of pattern segments, said cutting pattern being formed by a continuous line of predetermined width, comprising; automatically scanning said line with a sensor arrangement sensitive to distinctions between said line and the background of said cutting pattern; transmitting a signal generated in response to sensed distinctions to a control installation; and imparting a cutting movement to a cutting tool for said material in conformance with the signal received by said control installation, said continuous line having portions extending between at least two adjacent pattern segments of said cutting pattern and being in coincident or crossing relationship in at least one location, said sensor arrangement including photo scanning means, comprising conveying said photo scanning means along the center of said line in an oriented relationship with reference to both edges of said line, said line having a portion extending between at least two pattern segments of said cutting pattern in cross-over configuration at a crossing angle of about 90*, said line having a darker-lighter coloring in contrast with the background of said cutting pattern, directing at least one light spot toward both edges of the line for photo scanning; said light spot illuminating an area of said line and the areas of the adjacent cutting pattern background on both sides thereof; evaluating independently the intensities of light reflected from each of the line edge areas and adjacent cutting pattern background areas and in the direction of scanning movement, the continuing scanning being moved toward the left upon the reflected light at the left side having a lower intensity than the reflected light intensity at the right side and conversely.
Claim 4
Independent Claim
286 words
A method of automatically cutting out material pieces from a material web in conformance with a cutting pattern of pattern segments, said cutting pattern being formed by a continuous line of predetermined width, comprising; automatically scanning said line with a sensor arrangement sensitive to distinctions between said line and the background of said cutting pattern; transmitting a signal generated in response to sensed distinctions to a control installation; and imparting a cutting movement to a cutting tool for said material in conformance with the signal received by said control installation, said continuous line having portions extending between at least two adjacent pattern segments of said cutting pattern and being in coincident or crossing relationship in at least one location, said sensor arrangement including photo scanning means, comprising conveying said photo scanning means along the center of said line in an oriented relationship with reference to both edges of said line, said line having a portion extending between at least two pattern segments of said cutting pattern in cross-over configuration at a crossing angle of about 90*, said line having a darker-lighter coloring in contrast with the background of said cutting pattern, directing at least one light spot toward both edges of the line for photo scanning; said light spot illuminating an area of said line and the areas of the adjacent cutting pattern background on both sides thereof; evaluating independently the intensities of light reflected from each of the line edge areas and adjacent cutting pattern background areas and in the direction of scanning movement, the continuing scanning being moved toward the left upon the reflected light at the left side having a lower intensity than the reflected light intensity at the right side and conversely.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |