US3716295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic micro copying apparatus including film cutting, slitting, and inserting means for aperture cards
Assignee: Panasonic Holdings Corp
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Filing: 1971-03-12
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Granted: 1973-02-13
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Expires: 1991-03-12
Abstract
Abstract A photographic apparatus for producing a micro image of an original on an electrophotosensitive film by means of an electrophotographic method. The apparatus includes cutting means for cutting a length of film into film sections of a predetermined length, a supporting member for supporting and guiding said length of film and said film sections along a predetermined path, an aperture member having an aperture formed therein which defines the size of a frame on the film so as to leave two remaining portions at both longitudinal sides of the film, a charging means for charging electrostatically said frame, an exposure means for exposing the charged frame to a micro projected image of the original, a processing means for processing the exposed frame, an advancing means for advancing the film so that the film under driving engagement with only said two remaining portions of the film, a slitting means for separating said remaining portions from said film section after completion of the processing, and means for inserting the finished microfilm section into a pocket of an aperture card.
Inventors
- 👤 Y Nakajima
- 👤 I Yamaguchi
- 👤 M Onoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:36
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/26; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6476; Y10T83/6489; Y10T83/6491
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
331 words
A photographic apparatus for producing micro image of an original on a film having an electrophotosensitive layer thereon, said apparatus comprising: a. cutting means for cutting from a length of film a film section of a predetermined length; b. a supporting member for supporting and guiding said length of film and said film section along a predetermined path; c. an aperture member having an aperture formed therein which faces the electrophotosensitive layer of the film supported on said supporting member so as to define the size of a frame on the film, the width dimension of said aperture member being less than the width of the film so that the film has a remaining portion on both longitudinal sides thereof; d. charging means along said path for applying an electrostatic charge to said frame of the film on said supporting member; e. exposure means along said path adjacent said charging means for exposing the charged frame to a projected micro image of an original so as to form an electrostatic latent micro image on said frame of the film; f. processing means along said path adjacent said exposure means for processing the exposed frame in order to produce a visible micro image on said frame of the film; g. first film advancing means adjacent said cutting means for advancing the length of film and the film section simultaneously along said supporting member, said first film advancing means having driving members a distance greater than the width of the frame and engageable in driving engagement only with said two remaining portions of the film; h. second film advancing means spaced along said supporting member for advancing only said film section along said supporting member and having at least one driving member movable into and out of driving engagement with only a remaining portion of the film section; and i. slitting means along said path adjacent said processing means for slitting said remaining portions off said film section after completion of the processing.
Claim 2
Dependent Claim
331 words
A photographic apparatus for producing micro image of an original on a film having an electrophotosensitive layer thereon, said apparatus comprising: a. cutting means for cutting from a length of film a film section of a predetermined length; b. a supporting member for supporting and guiding said length of film and said film section along a predetermined path; c. an aperture member having an aperture formed therein which faces the electrophotosensitive layer of the film supported on said supporting member so as to define the size of a frame on the film, the width dimension of said aperture member being less than the width of the film so that the film has a remaining portion on both longitudinal sides thereof; d. charging means along said path for applying an electrostatic charge to said frame of the film on said supporting member; e. exposure means along said path adjacent said charging means for exposing the charged frame to a projected micro image of an original so as to form an electrostatic latent micro image on said frame of the film; f. processing means along said path adjacent said exposure means for processing the exposed frame in order to produce a visible micro image on said frame of the film; g. first film advancing means adjacent said cutting means for advancing the length of film and the film section simultaneously along said supporting member, said first film advancing means having driving members a distance greater than the width of the frame and engageable in driving engagement only with said two remaining portions of the film; h. second film advancing means spaced along said supporting member for advancing only said film section along said supporting member and having at least one driving member movable into and out of driving engagement with only a remaining portion of the film section; and i. slitting means along said path adjacent said processing means for slitting said remaining portions off said film section after completion of the processing.
Claim 3
Dependent Claim
331 words
A photographic apparatus for producing micro image of an original on a film having an electrophotosensitive layer thereon, said apparatus comprising: a. cutting means for cutting from a length of film a film section of a predetermined length; b. a supporting member for supporting and guiding said length of film and said film section along a predetermined path; c. an aperture member having an aperture formed therein which faces the electrophotosensitive layer of the film supported on said supporting member so as to define the size of a frame on the film, the width dimension of said aperture member being less than the width of the film so that the film has a remaining portion on both longitudinal sides thereof; d. charging means along said path for applying an electrostatic charge to said frame of the film on said supporting member; e. exposure means along said path adjacent said charging means for exposing the charged frame to a projected micro image of an original so as to form an electrostatic latent micro image on said frame of the film; f. processing means along said path adjacent said exposure means for processing the exposed frame in order to produce a visible micro image on said frame of the film; g. first film advancing means adjacent said cutting means for advancing the length of film and the film section simultaneously along said supporting member, said first film advancing means having driving members a distance greater than the width of the frame and engageable in driving engagement only with said two remaining portions of the film; h. second film advancing means spaced along said supporting member for advancing only said film section along said supporting member and having at least one driving member movable into and out of driving engagement with only a remaining portion of the film section; and i. slitting means along said path adjacent said processing means for slitting said remaining portions off said film section after completion of the processing.
Claim 4
Dependent Claim
331 words
A photographic apparatus for producing micro image of an original on a film having an electrophotosensitive layer thereon, said apparatus comprising: a. cutting means for cutting from a length of film a film section of a predetermined length; b. a supporting member for supporting and guiding said length of film and said film section along a predetermined path; c. an aperture member having an aperture formed therein which faces the electrophotosensitive layer of the film supported on said supporting member so as to define the size of a frame on the film, the width dimension of said aperture member being less than the width of the film so that the film has a remaining portion on both longitudinal sides thereof; d. charging means along said path for applying an electrostatic charge to said frame of the film on said supporting member; e. exposure means along said path adjacent said charging means for exposing the charged frame to a projected micro image of an original so as to form an electrostatic latent micro image on said frame of the film; f. processing means along said path adjacent said exposure means for processing the exposed frame in order to produce a visible micro image on said frame of the film; g. first film advancing means adjacent said cutting means for advancing the length of film and the film section simultaneously along said supporting member, said first film advancing means having driving members a distance greater than the width of the frame and engageable in driving engagement only with said two remaining portions of the film; h. second film advancing means spaced along said supporting member for advancing only said film section along said supporting member and having at least one driving member movable into and out of driving engagement with only a remaining portion of the film section; and i. slitting means along said path adjacent said processing means for slitting said remaining portions off said film section after completion of the processing.
Claim 5
Dependent Claim
111 words
A photographic apparatus according to claim 1 wherein said slitting means comprises: a. a drive shaft in the vicinity of the support member; b. a pair of cylindrical members coaxially mounted on said shaft; c. a pair of rollers for engaging the remaining portions of the film section in cooperation with said cylindrical members so as to move the film section; d. a pair of slitting discs fixed coaxially on said cylindrical members, respectively; and e. a cylindrical slitter opposed to and cooperating with said slitting discs for slitting said remaining portions off said film section while said cylindrical members and rollers are engaging the remaining portions of said film section.
Claim 6
Dependent Claim
150 words
A phoTographic apparatus according to claim 2 which further comprises inserting means for inserting the slit film section into a transparent pocket of an aperture card after the remaining portions have been slit off the film section by said slitting means, said inserting means comprising: a. a card holder at the end of said support member and adjacent said slitting means for holding a plurality of aperture cards at a position adjacent to said slitting means; b. a stationary drum supported on said drive shaft between said slitting discs; c. a pushing member of elastic material movably mounted on the periphery of said drum for pushing the back-edge of the film section completely into the pocket of one of said aperture cards and d. opening means for opening the entrance of said pocket of the aperture card so as to insure the insertion of the film section into said pocket.
Claim 7
Dependent Claim
52 words
A photographic apparatus according to claim 3 wherein said card holder is closer to said slitting means than the length of said film section, whereby the leading portion of the film section is inserted into the pocket of the aperture card before the remaining portions have cut off the film section completely.
Claim 8
Dependent Claim
47 words
A photographic apparatus according to claim 3, wherein each of the aperture cards has a plurality of transparent pockets and said inserting means further comprises aligning means for moving said car holder so as to align one of said pockets with said path of the film section.
Claim 9
Dependent Claim
71 words
A photographic apparatus according to claim 3 wherein said opening means comprises an opening member movable along a principal surface of said aperture card, said opening member having at least two tongues for catching an end perimeter of the portion of the material of the aperture card at the entrance of the pocket so as to flex said end perimeter up when said opening member moves relative to said aperture card.
Claim 10
Dependent Claim
39 words
A photographic apparatus according to claim 3, wherein said card holder is positioned for holding said aperture cards with the principal surface of the aperture cards inclined with respect to said path of the film on said support member.
Claim 11
Dependent Claim
110 words
A photographic apparatus according to claim 1 wherein said charging means is positioned along said path at a first station for applying the electrostatic charge to said film at the first station and said exposure means is positioned along said path adjacent said charging means for exposing film through said aperture member at said first station, and said processing means is positioned along said path at a second station for applying developer to the exposed film at the second station, said first and second stations being juxtaposed along the support member spaced from each other a distance substantially equal to a longitudinal length of a frame of the film section.
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |