Patent US1735591A successfully refreshed from Google Patents.
Patent US3853409A successfully refreshed from Google Patents.
US3853409A
Expired / Lapsed
US
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Method of and apparatus for giving information on the ink requirements of a printing forme
Assignee: MARINONI
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Filing: 1972-07-13
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Granted: 1974-12-10
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Expires: 1992-07-13
Abstract
Abstract The present invention relates to a method which enables information to be given on the ink requirements of a printing forme, this method consisting of analyzing, in the flat state and at one pass, by light measurements, all the columns of the photoengraving film of the printing forme, each in the aggregate, and then recording the information obtained. The invention also relates to a device for carrying this method into effect, which device comprises a single photoelectric cell of large size for each column to be analyzed, and a recording device for the information obtained.
Inventors
- 👤 J Gaillochet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:35
CPC Classifications
B; B41; B41F; B41F33/00; B41F33/0027
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
187 words
Apparatus for determining a plurality of settings which control the amount of ink applied to respective circumferential columns of a printing forme used to effect the printing of an image comprising means for supporting an image member having an image thereon corresponding to the image to be printed from said forme, the image on said image member having column areas corresponding to said columns on the forme, a photosensitive area disposed to receive light from said image member with said photosensitive area being large enough to receive the light at one time froM the entire area of a plurality of the column areas of the image on the image member, means for directing light onto the whole of a plurality of column areas on said image member, to transmit light to the photosensitive area and to establish over corresponding column areas of the photosensitive area a light intensity which indicates the image density in the corresponding column area of the image member and means for deriving from each of said photosensitive column areas a respective electrical signal depending on the amount of light on the column area.
Claim 2
Dependent Claim
187 words
Apparatus for determining a plurality of settings which control the amount of ink applied to respective circumferential columns of a printing forme used to effect the printing of an image comprising means for supporting an image member having an image thereon corresponding to the image to be printed from said forme, the image on said image member having column areas corresponding to said columns on the forme, a photosensitive area disposed to receive light from said image member with said photosensitive area being large enough to receive the light at one time froM the entire area of a plurality of the column areas of the image on the image member, means for directing light onto the whole of a plurality of column areas on said image member, to transmit light to the photosensitive area and to establish over corresponding column areas of the photosensitive area a light intensity which indicates the image density in the corresponding column area of the image member and means for deriving from each of said photosensitive column areas a respective electrical signal depending on the amount of light on the column area.
Claim 3
Dependent Claim
85 words
Apparatus for predetermining settings of a plurality of ink control devices as defined in claim 1, and wherein said image member corresponds to the full image to be printed and wherein said photosensitive area receives light at one time from the full image, said image member being a light transmitting member and said means for directing light onto said image member being disposed on a side of said image member remote from said photosensitive area, said photosensitive area being disposed immediately adjacent said image member.
Claim 4
Dependent Claim
26 words
Apparatus as defined in claim 2 wherein said image member is flat and said means supporting said image member supports the latter in a flat position.
Claim 5
Dependent Claim
64 words
Apparatus as defined in claim 1 and wherein said photosensitive area comprises a plurality of photoelectric cells each of a size to receive light corresponding to a respective column area, and wherein said means for deriving a respective electrical signal from each of said photosensitive column areas comprises means for deriving a respective electrical signal from each corresponding respective one of said photoelectric cells.
Claim 6
Dependent Claim
23 words
Apparatus as defined in claim 4 and wherein said cells are arranged side by side as a panel corresponding to said image member.
Claim 7
Dependent Claim
21 words
Apparatus as defined in claim 4 and wherein each of said photoelectric cells comprises a selenium cell with a stop layer.
Claim 8
Dependent Claim
24 words
Apparatus as defined in claim 1 and further comprising means for recording said respective electrical signals derived from each of said photosensitive column areas.
Claim 9
Dependent Claim
17 words
Apparatus as defined in claim 7 and wherein said means for recording is a perforated strip recorder.
Claim 10
Dependent Claim
17 words
Apparatus as defined in claim 7 and wherein said means for recording is a magnetic tape recorder.
Claim 11
Dependent Claim
40 words
Apparatus as defined in claim 3 and wherein said means for directing light onto said image member comprises a source of light providing a substantially uniformly diffused illumination of said image member and wherein said image member comprises a film.
Claim 12
Independent Claim
156 words
A method of providing information regarding requirements of ink for a printing forme comprising directing light onto an image member having the image to be printed thereon to illuminate the entire image area, transmitting light from the image member which varies spatially in intensity in accordance with the density of the image to be printed and illuminating therewith a photosensitive area with the photosensitive area receiving light from all portions of the image on the image member and deriving a plurality of signals from individual portions of the photosensitive area which correspond to columns of the printing forme used to print the image in which the ink flow to the respective column is controlled by a respective setting, the signal derived being a signal indicating the amount of light falling on the corresponding column area of the photosensitive area, and utilizing the electrical signals to indicate the ink settings for the columns of the printing forme.
Claim 13
Independent Claim
156 words
A method of providing information regarding requirements of ink for a printing forme comprising directing light onto an image member having the image to be printed thereon to illuminate the entire image area, transmitting light from the image member which varies spatially in intensity in accordance with the density of the image to be printed and illuminating therewith a photosensitive area with the photosensitive area receiving light from all portions of the image on the image member and deriving a plurality of signals from individual portions of the photosensitive area which correspond to columns of the printing forme used to print the image in which the ink flow to the respective column is controlled by a respective setting, the signal derived being a signal indicating the amount of light falling on the corresponding column area of the photosensitive area, and utilizing the electrical signals to indicate the ink settings for the columns of the printing forme.
References Cited (Backward Citations)
US2140799A
Cited
US3535046A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |