Patent US3797341A successfully refreshed from Google Patents.
US3797341A
Expired / Lapsed
US
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Method of and apparatus for cutting textile material
Assignee: Rieter Ingolstadt GmbH
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Filing: 1973-01-11
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Granted: 1974-03-19
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Expires: 1993-01-11
Abstract
Abstract A flimsy sealing surface sheet of silk paper, rough on one side, closely overlies a pack of cloth sheets to be cut, which cloth sheets are supported on an apertured support. The sealing surface sheet is less air-permeable than the cloth sheets and may simply be carried by the pack of cloth sheets, or such sealing surface sheet may be in the form of endless belts located on opposite sides of a cutting implement used for cutting the cloth sheets of the pack. The surface sheet is pressed firmly against the pack of cloth sheets by suction applied through apertures of the sheet pack support.
Inventors
- 👤 B Bystron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:04
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/01; B26D7/018; B26D7/20; B26D2007/206; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/936; Y10S83/938; Y10S83/939; Y10S83/94; Y10S83/941; Y10T; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/0605; Y10T83/647; Y10T83/6579; Y10T83/748
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
In a method for cutting textile material automatically, the steps which comprise supporting air-permeable material on an airpermeable support, providing a slightly air-permeable surface sheet, less permeable than such air-permeable material, and having one rough side, and one smooth side placing such rough side of such slightly air-permeable sheet against the side of the air-permeable material opposite the support, applying suction to the support to draw the surface sheet against the air-permeable material and the air-permeable material against the support, and holding the upper surface of the air-permeable material by thus pressing the rough side of the surface sheet into contact with the upper surface of the air-permeable material to deter edgewise movement of the surface sheet relative to the air-permeable material and thus to deter edgewise movement of the air-permeable material relative to the support.
Claim 2
Dependent Claim
136 words
In a method for cutting textile material automatically, the steps which comprise supporting air-permeable material on an airpermeable support, providing a slightly air-permeable surface sheet, less permeable than such air-permeable material, and having one rough side, and one smooth side placing such rough side of such slightly air-permeable sheet against the side of the air-permeable material opposite the support, applying suction to the support to draw the surface sheet against the air-permeable material and the air-permeable material against the support, and holding the upper surface of the air-permeable material by thus pressing the rough side of the surface sheet into contact with the upper surface of the air-permeable material to deter edgewise movement of the surface sheet relative to the air-permeable material and thus to deter edgewise movement of the air-permeable material relative to the support.
Claim 3
Dependent Claim
13 words
In the method defined in claim 1, the surface sheet being silk paper.
Claim 4
Dependent Claim
134 words
Apparatus for cutting textile material including an air-permeable support having one side for supporting air-permeable material to be cut, and suction means for applying suction to the side of the support opposite the side for supporting the air-permeable material, the improvement comprising a slightly air-permeable flimsy surface sheet, less permeable than the air-permeable material on the air-permeable support, overlying air-permeable material supported by the support and having a rough surface and a smooth surface disposed with said rough surface pressed into engagement with the side of the air-permeable material opposite the support by suction produced by the suction means, said surface of said surface sheet pressed into engagement with the air-permeable material being sufficiently rough as to hold said surface sheet and such side of the air-permeable material engaged thereby against relative sliding movement.
Claim 5
Dependent Claim
134 words
Apparatus for cutting textile material including an air-permeable support having one side for supporting air-permeable material to be cut, and suction means for applying suction to the side of the support opposite the side for supporting the air-permeable material, the improvement comprising a slightly air-permeable flimsy surface sheet, less permeable than the air-permeable material on the air-permeable support, overlying air-permeable material supported by the support and having a rough surface and a smooth surface disposed with said rough surface pressed into engagement with the side of the air-permeable material opposite the support by suction produced by the suction means, said surface of said surface sheet pressed into engagement with the air-permeable material being sufficiently rough as to hold said surface sheet and such side of the air-permeable material engaged thereby against relative sliding movement.
Claim 6
Dependent Claim
13 words
In the apparatus defined in claim 3, the surface sheet being silk paper.
Claim 7
Dependent Claim
113 words
In a method for cutting textile material automatically, the steps which comprise supporting air-permeable material on an air-permeable support, placing a surface sheet against the side of the air-permeable material opposite the support, such surface sheet being of material which is slightly air-permeable but having an air-permeability substantially less than that of such air-permeable material, and applying suction to the support and thereby drawing a substantial amount of air through the surface sheet and pressing the surface sheet against the air-permeable material sufficiently firmly to hold the air-permeable material down against the support for effectively gripping the air-permeable material to deter its movement away from the support without excessively compacting the air-permeable material.
Claim 8
Dependent Claim
113 words
In a method for cutting textile material automatically, the steps which comprise supporting air-permeable material on an air-permeable support, placing a surface sheet against the side of the air-permeable material opposite the support, such surface sheet being of material which is slightly air-permeable but having an air-permeability substantially less than that of such air-permeable material, and applying suction to the support and thereby drawing a substantial amount of air through the surface sheet and pressing the surface sheet against the air-permeable material sufficiently firmly to hold the air-permeable material down against the support for effectively gripping the air-permeable material to deter its movement away from the support without excessively compacting the air-permeable material.
References Cited (Backward Citations)
US3495492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |