Patent US3797346A successfully refreshed from Google Patents.
US3797346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cutting a roll of copying material according to the length of the original
Assignee: Iwatsu Electric Co Ltd
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Filing: 1972-10-11
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Granted: 1974-03-19
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Expires: 1992-10-11
Abstract
Abstract A copying machine is disclosed having an apparatus for cutting a roll of copying material according to the length of an original positioned on a transparent supporting table. The cutting apparatus includes a device for optically detecting the forward edge of the original. The roll copying material and a moving member carrying the detecting device are driven at the same speed. When the edge detector detects the forward edge of the original, the cutter is triggered.
Inventors
- 👤 S Kakii
- 👤 S Hisabayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:28
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6517; G03G15/6523; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4443; Y10T83/525; Y10T83/533
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
An apparatus for cutting a roll of copying material according to the length of an original, comprising: a transparent supporting plate for positioning an original, a movable member extending parallel to said transparent supporting plate, driving means for moving said movable member and said roll at the same speed in response to an activating signal, cutting means for cutting segments from said roll of copying material; and, sensing means mounted on said movable member including a light source mounted on said movable member for projecting a light beam on said original and a detector for detecting an edge of said original, wherein said cutting means is coupled to said sensing means and is activated by the detection of said edge whereby said roll of copying material is cut according to the length of said original.
Claim 2
Independent Claim
135 words
An apparatus for cutting a roll of copying material according to the length of an original, comprising: a transparent supporting plate for positioning an original, a movable member extending parallel to said transparent supporting plate, driving means for moving said movable member and said roll at the same speed in response to an activating signal, cutting means for cutting segments from said roll of copying material; and, sensing means mounted on said movable member including a light source mounted on said movable member for projecting a light beam on said original and a detector for detecting an edge of said original, wherein said cutting means is coupled to said sensing means and is activated by the detection of said edge whereby said roll of copying material is cut according to the length of said original.
Claim 3
Dependent Claim
31 words
An apparatus for cutting a roll of copying material according to the length of an original, as in claim 1, wherein: said detector of said sensing means comprises a semiconductor switch.
Claim 4
Dependent Claim
32 words
An apparatus for cutting a roll of copying material according to the length of an original as in claim 1, wherein: said detector of said sensing means comprising a silicon controlled rectifier.
Claim 5
Dependent Claim
40 words
An apparatus for cutting a roll of copying material according to the length of an original as in claim 1, wherein: said light source of said sensing means provides light for scanning said original and for detecting an edge thereof.
Claim 6
Independent Claim
136 words
An apparatus for cutting a roll of copying material according to the length of an original, which comprises: A transparent supporting plate for positioning an original, a movable member extending parallel to said transparent supporting plate, a light source for scanning said original mounted on said movable member, driving means for moving both said movable member and said roll of copying material at the same speed in response to an activating signal, means for cutting said roll of copying material, means mounted on said moving member for detecting the optical intensity of light from said light source reflected from the surface of said original, wherein said cutting means is coupled to said last named means and responds to the output thereof for cutting said roll of copying material in response to variations in said optical intensity.
Claim 7
Independent Claim
136 words
An apparatus for cutting a roll of copying material according to the length of an original, which comprises: A transparent supporting plate for positioning an original, a movable member extending parallel to said transparent supporting plate, a light source for scanning said original mounted on said movable member, driving means for moving both said movable member and said roll of copying material at the same speed in response to an activating signal, means for cutting said roll of copying material, means mounted on said moving member for detecting the optical intensity of light from said light source reflected from the surface of said original, wherein said cutting means is coupled to said last named means and responds to the output thereof for cutting said roll of copying material in response to variations in said optical intensity.
Claim 8
Dependent Claim
34 words
An apparatus for cutting a roll of copying material according to the length of an original as in claim 5, wherein: said means mounted on said moving member for detecting comprises a semiconductor switch.
Claim 9
Dependent Claim
35 words
An apparatus for cutting a roll of copying material according to the length of an original as in claim 5, wherein: said means mounted on said moving member for detecting comprises a silicon controlled rectifier.
Claim 10
Dependent Claim
33 words
An apparatus for cutting a roll of copying material according to the length of an original as in claim 5, wherein: said light source provides illumination for enabling both scanning and length detecting.
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) | 1977-03-18 | 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 |