Patent US3813164A successfully refreshed from Google Patents.
US3813164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film holder for making prints
Assignee: Individual
•
Filing: 1972-08-16
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Granted: 1974-05-28
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Expires: 1992-08-16
Abstract
Abstract A device especially for making prints from transparencies has a housing provided with a cavity forming a receptacle for selectively receiving a packet of stacked, interconnected sheets of photosensitive film, and a planar surface provided in a cover portion of the housing and arrangeable substantially parallel and adjacent the film sheets for forming a screen for focusing a projected image thereon. A pair of rollers are resiliently mounted on the housing for resilient movement of their peripheral surfaces toward one another, and are arranged parallel and adjacent to one another and to a slot provided in the housing such that a plane passing between the rollers passes through the slot. These rollers are arranged for breaking a developing chemical packet associated with a film sheet as the sheet is passed through the slot and between the rollers, and for spreading the chemical about the sheet for developing same. A crossed elastic band may be adjustably arranged about adjacent end portions of the rollers to provide their resilient mounting, and also rotate one roller in a direction opposite the rotation of the other for advancing the film sheet as it passes between the rollers. A projection is provided on the housing and arranged extending into the cavity from a wall of the housing opposite the planar surface for biasing the film sheets toward the planar surface. Tabs are also provided on the housing and arranged extending into the cavity for engaging an edge of a holder in which the film sheets are arranged and biasing the holder about the projection for maintaining the holder and film sheets parallel to the planar surface. Further, at least one pad constructed from a compressible material is arranged in the cavity on the housing wall opposite the planar surface for biasing the film sheet holder toward the planar surface and positioning the film sheet adjacent the planar surface in the plane of the planar surface when the cover portion is in a position permitting access to the cavity.
Inventors
- 👤 W Kolozsi
- 👤 C Skowron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:28
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/323; G03B17/00; G03B17/28; G03B17/32; G03B17/34
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
169 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and provided with an opening in a wall thereof, said opening formed as a slot for permitting a sheet of film to pass therethrough; b. means having a planar surface arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. a pair of rollers extending the length of said slot and mounted in opposed slots provided on said housing for movement toward one another, and parallel with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, at least one crossed elastic band being arranged about adjacent end portions of said rollers for rotating one roller in a direction opposite the rotation of the other.
Claim 2
Dependent Claim
169 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and provided with an opening in a wall thereof, said opening formed as a slot for permitting a sheet of film to pass therethrough; b. means having a planar surface arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. a pair of rollers extending the length of said slot and mounted in opposed slots provided on said housing for movement toward one another, and parallel with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, at least one crossed elastic band being arranged about adjacent end portions of said rollers for rotating one roller in a direction opposite the rotation of the other.
Claim 3
Dependent Claim
65 words
A structure as defined in claim 1, wherein a further slot extending perpendicularly from said slot is provided in a wall of said housing and arranged adjacent said adjacent end portions, a pin is selectively positionably arranged in said further slot, and said elastic band is arranged about said pin, the position of said pin in said further slot determining the tension on said rollers.
Claim 4
Dependent Claim
47 words
A structure as defined in claim 2, wherein at least one of said rollers has enlarged diameter portions at end portions thereof for forming a recess between a median portion of said rollers for permitting a starting tab on a sheet of film to be guided therethrough.
Claim 5
Dependent Claim
32 words
A structure as defined in claim 3, wherein said housing has a cover portion selectively arrangeable in a position enclosing said cavity, and said planar surface forms part of said cover portion.
Claim 6
Dependent Claim
20 words
A structure as defined in claim 4, wherein said planar surface is recessed in said cover portion toward said cavity.
Claim 7
Dependent Claim
59 words
A structure as defined in claim 5, wherein at least one substantially pointed member is pivotally mounted on said housing adjacent said rollers, and is arranged for being selectively pivoted toward said rollers and wedging between and biasing apart same aT the end of a sheet withdrawal for preventing rupturing of the chemical packet associated with the film sheet.
Claim 8
Dependent Claim
36 words
A structure as defined in claim 6, wherein projecting means is provided on said housing and arranged extending into said cavity from a wall of the housing for biasing the film sheet toward the planar surface.
Claim 9
Dependent Claim
56 words
A structure as defined in claim 7, wherein means is provided on said housing and arranged extending into said cavity for engaging an edge of a holder in which the film sheet is arranged and biasing the film sheet holder about said projecting means for maintaining the holder and film sheet parallel to the planar surface.
Claim 10
Dependent Claim
68 words
A structure as defined in claim 8, wherein at least one pad constructed from a compressible material is mounted on a housing wall for extending into said cavity and biasing the film sheet holder toward the planar surface and positioning the film sheet adjacent the planar surface in the plane of the planar surface when said cover portion is arranged in a position permitting access to said cavity.
Claim 11
Dependent Claim
36 words
A structure as defined in claim 9, wherein a further housing is connected in light-sealing relationship to said housing, and means is arranged in said further housing for selectively projecting an image onto said planar surface.
Claim 12
Dependent Claim
215 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and provided with an opening in a wall thereof, said opening formed as a slot for permitting a sheet of film to pass therethrough; b. means having a planar surface arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. a pair of rollers extending the length of said slot and mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and parallel with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, a further slot extending perpendicularly from said slot being provided in a wall of said housing and arranged adjacent associated end portions of said rollers, a pin selectively positionably arranged in said further slot, and an elastic band arranged about said pin and the adjacent end portion of said rollers, the position of said pin in said further slot determining the tension on said rollers.
Claim 13
Dependent Claim
215 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and provided with an opening in a wall thereof, said opening formed as a slot for permitting a sheet of film to pass therethrough; b. means having a planar surface arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. a pair of rollers extending the length of said slot and mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and parallel with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, a further slot extending perpendicularly from said slot being provided in a wall of said housing and arranged adjacent associated end portions of said rollers, a pin selectively positionably arranged in said further slot, and an elastic band arranged about said pin and the adjacent end portion of said rollers, the position of said pin in said further slot determining the tension on said rollers.
Claim 14
Dependent Claim
189 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and provided with an opening in a wall thereof, said opening formed as a slot for permitting a sheet of film to pass therethrough; b. means having a planar surface arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. a pair of rollers extending the length of said slot and mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and parallel with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, at least one of said rollers having enlarged diameter portions at end portions thereof for forming a recess between a median portion of said rollers for permitting a starting tab on a sheet of film to be guided therethrough.
Claim 15
Dependent Claim
189 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and provided with an opening in a wall thereof, said opening formed as a slot for permitting a sheet of film to pass therethrough; b. means having a planar surface arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. a pair of rollers extending the length of said slot and mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and parallel with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, at least one of said rollers having enlarged diameter portions at end portions thereof for forming a recess between a median portion of said rollers for permitting a starting tab on a sheet of film to be guided therethrough.
Claim 16
Dependent Claim
203 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and provided with an opening in a wall thereof, said opening formed as a slot for pErmitting a sheet of film to pass therethrough; b. means having a planar surface arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. a pair of rollers extending the length of said slot and mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and parallel with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet; and d. at least one substantially pointed member being pivotally mounted on said housing adjacent said rollers, and being arranged for being selectively pivoted toward said rollers and wedging between and biasing apart same at the end of a sheet withdrawal for preventing rupturing of the chemical packet associated with the film sheet.
Claim 17
Dependent Claim
203 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and provided with an opening in a wall thereof, said opening formed as a slot for pErmitting a sheet of film to pass therethrough; b. means having a planar surface arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. a pair of rollers extending the length of said slot and mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and parallel with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet; and d. at least one substantially pointed member being pivotally mounted on said housing adjacent said rollers, and being arranged for being selectively pivoted toward said rollers and wedging between and biasing apart same at the end of a sheet withdrawal for preventing rupturing of the chemical packet associated with the film sheet.
Claim 18
Dependent Claim
32 words
A structure as defined in claim 13, wherein said housing has a cover portion selectively arrangeable in a position enclosing said cavity, and said planar surface forms part of said cover portion.
Claim 19
Dependent Claim
20 words
A structure as defined in claim 13, wherein said planar surface is recessed in said cover portion toward said cavity.
Claim 20
Dependent Claim
103 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film; b. means having a planar surface arrangeable in a plane substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. projecting means being provided on said housing and arranged extending into said cavity from a wall of the housing for biasing the film sheet perpendicular to the plane thereof and toward the planar surface and into the plane of the planar surface when same is removed therefrom.
Claim 21
Dependent Claim
103 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film; b. means having a planar surface arrangeable in a plane substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. projecting means being provided on said housing and arranged extending into said cavity from a wall of the housing for biasing the film sheet perpendicular to the plane thereof and toward the planar surface and into the plane of the planar surface when same is removed therefrom.
Claim 22
Dependent Claim
129 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film; b. means having a planar surface arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; c. projecting means being provided on said housing and arranged extending into said cavity from a wall of the housing for biasing the film sheet toward the planar surface; and d. means provided on said housing and arranged extending into said cavity for engaging an edge of a holder in which the film sheet is arranged and biasing the film sheet holder about said projecting means for maintaining the holder and film sheet parallel to the planar surface.
Claim 23
Dependent Claim
129 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film; b. means having a planar surface arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; c. projecting means being provided on said housing and arranged extending into said cavity from a wall of the housing for biasing the film sheet toward the planar surface; and d. means provided on said housing and arranged extending into said cavity for engaging an edge of a holder in which the film sheet is arranged and biasing the film sheet holder about said projecting means for maintaining the holder and film sheet parallel to the planar surface.
Claim 24
Dependent Claim
121 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film; b. means having a planar surface arrangeable in a plane substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. at least one pad constructed from a compressible material mounted in said cavity on a wall of said housing opposite said planar surface for biasing a holder in which the film sheet is arranged perpendicular to the plane thereof and toward the planar surface and positioning the film sheet in the plane of the planar surface when the planar surface is removed from that plane.
Claim 25
Dependent Claim
121 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film; b. means having a planar surface arrangeable in a plane substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. at least one pad constructed from a compressible material mounted in said cavity on a wall of said housing opposite said planar surface for biasing a holder in which the film sheet is arranged perpendicular to the plane thereof and toward the planar surface and positioning the film sheet in the plane of the planar surface when the planar surface is removed from that plane.
Claim 26
Dependent Claim
99 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a planar sheet of photosensitive film; b. means having a planar surface removably arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; c. means for biasing the sheet of film transverse to the plane thereof and toward the planar surface; and d. A further housing connected in light-sealing relationship to said housing, and means arranged in said further housing for selectively projecting an image onto said planar surface.
Claim 27
Dependent Claim
99 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a planar sheet of photosensitive film; b. means having a planar surface removably arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; c. means for biasing the sheet of film transverse to the plane thereof and toward the planar surface; and d. A further housing connected in light-sealing relationship to said housing, and means arranged in said further housing for selectively projecting an image onto said planar surface.
Claim 28
Dependent Claim
130 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and an opening provided in a wall of said housing, said opening formed as a slot for permitting the sheet of film to pass therethrough; and b. a pair of rollers resiliently mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said opening and with a plane passing between said rollers and through said opening, elastic means arranged about both rollers for resiliently mounting the rollers, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet.
Claim 29
Dependent Claim
130 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and an opening provided in a wall of said housing, said opening formed as a slot for permitting the sheet of film to pass therethrough; and b. a pair of rollers resiliently mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said opening and with a plane passing between said rollers and through said opening, elastic means arranged about both rollers for resiliently mounting the rollers, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet.
Claim 30
Dependent Claim
147 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and an opening provided in a wall of said housing, said opening formed as a slot for permitting the sheet of film to pass therethrough; and b. a pair of rollers mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, and at least one crossed elastic band being arranged about adjacent end portions of said rollers for rotating one roller in a direction opposite the rotation of the other.
Claim 31
Dependent Claim
147 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and an opening provided in a wall of said housing, said opening formed as a slot for permitting the sheet of film to pass therethrough; and b. a pair of rollers mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, and at least one crossed elastic band being arranged about adjacent end portions of said rollers for rotating one roller in a direction opposite the rotation of the other.
Claim 32
Dependent Claim
185 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and an opening provided in a wall of said housing, said opening formed as a slot for permitting the sheet of film to pass therethrough; and b. a pair of rollers mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, a further slot extending perpendicularly from said slot being provided in a wall of said housing and arranged adjacent associated end portions of said rollers, a pin being selectively positionably arranged in said further slot, and an elastic band being arranged about said pin and the adjacent end portion of said rollers, the position of said pin in said further slot determining the tension on said rollers.
Claim 33
Dependent Claim
185 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and an opening provided in a wall of said housing, said opening formed as a slot for permitting the sheet of film to pass therethrough; and b. a pair of rollers mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, a further slot extending perpendicularly from said slot being provided in a wall of said housing and arranged adjacent associated end portions of said rollers, a pin being selectively positionably arranged in said further slot, and an elastic band being arranged about said pin and the adjacent end portion of said rollers, the position of said pin in said further slot determining the tension on said rollers.
Claim 34
Dependent Claim
157 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and an opening provided in a wall of said housing, said opening formed as a slot for permitting the sheet of film to pass therethrough; and b. a pair of rollers mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, at least one of said rollers having enlarged diameter portions at end portions thereof for forming a recess between a median portion of said rollers for permitting a starting tab on a sheet of film to be guided therethrough.
Claim 35
Dependent Claim
157 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film, and an opening provided in a wall of said housing, said opening formed as a slot for permitting the sheet of film to pass therethrough; and b. a pair of rollers mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said slot and with a plane passing between said rollers and through said slot, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet, at least one of said rollers having enlarged diameter portions at end portions thereof for forming a recess between a median portion of said rollers for permitting a starting tab on a sheet of film to be guided therethrough.
Claim 36
Dependent Claim
187 words
A holder for a sheet of photosensitive film, comprising, in comBination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film; b. an opening provided in a wall of said housing and forming a focal plane; c. projection means provided on said housing and arranged extending into said cavity from a wall of the housing opposite the wall of the focal plane for biasing the film sheet toward the focal plane; d. means provided on said housing and arranged extending into said cavity for engaging an edge of a holder in which the film sheet is arranged and biasing the holder about said projection means for maintaining the holder and film sheet parallel to the focal plane; and e. at least one pad constructed from a compressible material is mounted on a housing wall for extending into said cavity and biasing the film sheet holder toward the planar surface and positioning the film sheet adjacent the planar surface in the plane of the planar surface when said cover portion is arranged in a position permitting access to said cavity.
Claim 37
Dependent Claim
187 words
A holder for a sheet of photosensitive film, comprising, in comBination: a. a housing provided with a cavity forming a receptacle for selectively receiving a sheet of photosensitive film; b. an opening provided in a wall of said housing and forming a focal plane; c. projection means provided on said housing and arranged extending into said cavity from a wall of the housing opposite the wall of the focal plane for biasing the film sheet toward the focal plane; d. means provided on said housing and arranged extending into said cavity for engaging an edge of a holder in which the film sheet is arranged and biasing the holder about said projection means for maintaining the holder and film sheet parallel to the focal plane; and e. at least one pad constructed from a compressible material is mounted on a housing wall for extending into said cavity and biasing the film sheet holder toward the planar surface and positioning the film sheet adjacent the planar surface in the plane of the planar surface when said cover portion is arranged in a position permitting access to said cavity.
Claim 38
Independent Claim
95 words
A method for making prints from transparencies, comprising the steps of: a. projecting and focusing an image of a transparency onto a planar focal surface; b. biasing a planar sheet of photosensitive film toward an adjacent side of the planar focal surface opposed to a side upon which an image is projected and focused; c. removing the focal surface and allowing the biased film sheet to move transverse to the plane thereof into the plane and position vacated by the planar focal surface; and d. exposing the film sheet to the projected and focused image.
Claim 39
Independent Claim
95 words
A method for making prints from transparencies, comprising the steps of: a. projecting and focusing an image of a transparency onto a planar focal surface; b. biasing a planar sheet of photosensitive film toward an adjacent side of the planar focal surface opposed to a side upon which an image is projected and focused; c. removing the focal surface and allowing the biased film sheet to move transverse to the plane thereof into the plane and position vacated by the planar focal surface; and d. exposing the film sheet to the projected and focused image.
Claim 40
Dependent Claim
88 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a planar sheet of photosensitive film; b. means having a planar surface removably arrangeable in a plane substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. means for biasing the sheet of film perpendicular to the plane thereof and toward the planar surface and into the plane of the planar surface when same is removed therefrom.
Claim 41
Dependent Claim
88 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a planar sheet of photosensitive film; b. means having a planar surface removably arrangeable in a plane substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon; and c. means for biasing the sheet of film perpendicular to the plane thereof and toward the planar surface and into the plane of the planar surface when same is removed therefrom.
Claim 42
Dependent Claim
107 words
A structure as defined in claim 26, wherein said housing is provided with an opening in a wall thereof, said opening formed as a slot for permitting a sheet of film to pass therethrough, a pair of rollers resiliently mounted in opposed slots provided on said housing for movement toward one another, and arranged parallel to one another and said opening and with a plane passing between said rollers and through said opening, elastic means for resiliently mounting the rollers, said rollers breaking a developing chemical packet associated with a film sheet as the sheet is passed between the rollers and spreading the chemical about the sheet.
Claim 43
Dependent Claim
189 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a planar sheet of photosensitive film, said housing having a cover portion selectively arrangeable in a position enclosing said cavity; b. means having a planar surface removably arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon, said planar surface forming part of said cover portion, said planar surface being recessed in said cover portion towards said cavity; and c. means for biasing the sheet of film perpendicular to the plane thereof and toward the planar surface; d. projection means provided on said housing and arranged extending into said cavity from a wall of the housing opposite the wall of the focal plane for biasing the film sheet toward the focal plane; and e. means provided on said housing and arranged extending into said cavity for engaging an edge of a holder in which the film sheet is arranged and biasing the holder about said projection means for maintaining the holder and film sheet parallel to the focal plane.
Claim 44
Dependent Claim
189 words
A holder for photosensitive film, comprising, in combination: a. a housing provided with a cavity forming a receptacle for selectively receiving a planar sheet of photosensitive film, said housing having a cover portion selectively arrangeable in a position enclosing said cavity; b. means having a planar surface removably arrangeable substantially parallel and adjacent to the film sheet for forming a screen for focusing a projected image thereon, said planar surface forming part of said cover portion, said planar surface being recessed in said cover portion towards said cavity; and c. means for biasing the sheet of film perpendicular to the plane thereof and toward the planar surface; d. projection means provided on said housing and arranged extending into said cavity from a wall of the housing opposite the wall of the focal plane for biasing the film sheet toward the focal plane; and e. means provided on said housing and arranged extending into said cavity for engaging an edge of a holder in which the film sheet is arranged and biasing the holder about said projection means for maintaining the holder and film sheet parallel to the focal plane.
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |