US3797823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic apparatus
Assignee: Individual
•
Filing: 1972-03-27
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Granted: 1974-03-19
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Expires: 1992-03-27
Abstract
Abstract Mechanical means for separating an image-receiving sheet from a more flexible photo-sensitive sheet after image transfer has occurred, the means comprising two rods around which the more flexible sheet is drawn by a power-driven gripper and around which the less flexible sheet is unable to follow.
Inventors
- 👤 C Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:15
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/53
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
174 words
In a photographic apparatus utilizing a composite flexible photosensitive sheet and stiff image receiving sheet superimposed thereon, a separating mechanism comprising: first and second guides; gripper means for gripping the leAding edge of the flexible sheet and drawing the composite along a path between said first and second guides; at least one of said guides being reatively movable from a retracted position in which the guides are spaced apart, to a juxtaposed position in which they are juxtaposed and form a sinuous path around and between said first and second guides; means for bringing said guides together after passage of the leading edge of the flexible sheet past one of said guides and before passage of the leading edge of the stiff sheet past said one of said guides, thereby to form a sharp curve in said flexible sheet around said sinuous path; whereby, the stiffness of said stiff sheet will render it unable to follow the sinuous path followed by said flexible sheet and said stiff sheet will separate from said flexible sheet.
Claim 2
Dependent Claim
174 words
In a photographic apparatus utilizing a composite flexible photosensitive sheet and stiff image receiving sheet superimposed thereon, a separating mechanism comprising: first and second guides; gripper means for gripping the leAding edge of the flexible sheet and drawing the composite along a path between said first and second guides; at least one of said guides being reatively movable from a retracted position in which the guides are spaced apart, to a juxtaposed position in which they are juxtaposed and form a sinuous path around and between said first and second guides; means for bringing said guides together after passage of the leading edge of the flexible sheet past one of said guides and before passage of the leading edge of the stiff sheet past said one of said guides, thereby to form a sharp curve in said flexible sheet around said sinuous path; whereby, the stiffness of said stiff sheet will render it unable to follow the sinuous path followed by said flexible sheet and said stiff sheet will separate from said flexible sheet.
Claim 3
Dependent Claim
20 words
Apparatus as claimed in claim 1, wherein said gripper means includes a carriage which is slidable along a straight path.
Claim 4
Dependent Claim
35 words
Apparatus as defined in claim 1, further comprising means for receiving the separated photosensitive sheet and the image receiving sheet, said receiving means being situated in said apparatus on the downstream side of said guides.
Claim 5
Dependent Claim
32 words
Apparatus as defined in claim 1, wherein the path defined between and around said guides, in their juxtaposed position, includes two curves at least one of which is at least 90* .
Claim 6
Dependent Claim
75 words
Apparatus as defined in claim 1, wherein one of said guides is stationary and the other of said guides is movable; in the retracted position, the axes of the guides define first a flat plane, and in moving from the retracted position to the juxtaposed position, the axis of the movable guide passes through a second flat plane through and perpendicular to the axis of the stationary guide and perpendicular to said first flat plane.
Claim 7
Dependent Claim
59 words
Apparatus as defined in claim 1, wherein: the axes of said first and second guides, in their retracted position, define a first plane; the axes of said first and second guides in their juxtaposed position, define a second plane; and the smallest angle of rotation necessary to bring said first plane parallel to said second plane exceeds 90* .
Claim 8
Dependent Claim
152 words
A photographic apparatus utilizing a composite sheet including a flexible sheet and a stiff sheet, the flexible sheet having a portion extending forward of the stiff sheet, comprising: a traveling gripper arranged to grip the leading edge of the flexible sheet and draw the flexible sheet along a path; first and second guides arranged on opposite sides of said path and between which the composite is drawn by said gripper, at least one of said guides being relatively movable between a retracted position in which the guides are spaced apart far enough to allow the gripper to pass between them, and a closed position in which the guides are juxtaposed and define a sunuous path therebetween around which the flexible sheet is drawn; whereby the stiffness of the stiff sheet prevents it from following the flexible sheet around the sinuous path so that the stiff sheet and the flexible sheet will separate.
Claim 9
Dependent Claim
152 words
A photographic apparatus utilizing a composite sheet including a flexible sheet and a stiff sheet, the flexible sheet having a portion extending forward of the stiff sheet, comprising: a traveling gripper arranged to grip the leading edge of the flexible sheet and draw the flexible sheet along a path; first and second guides arranged on opposite sides of said path and between which the composite is drawn by said gripper, at least one of said guides being relatively movable between a retracted position in which the guides are spaced apart far enough to allow the gripper to pass between them, and a closed position in which the guides are juxtaposed and define a sunuous path therebetween around which the flexible sheet is drawn; whereby the stiffness of the stiff sheet prevents it from following the flexible sheet around the sinuous path so that the stiff sheet and the flexible sheet will separate.
Claim 10
Dependent Claim
32 words
Apparatus as defined in claim 7, wherein said path between and around said guides, in the juxtaposed position thereof, includes two curves, at least one of which is at least 90* .
Claim 11
Dependent Claim
20 words
Apparatus as defined in claim 7, wherein said traveling gripper includes a carriage which is slidable along a straight path.
Claim 12
Dependent Claim
75 words
Apparatus as defined in claim 7, wherein one of said guides is stationary and the other of said guides is movable; in the retracted position, the axes of the guides define a first flat plane, and in moving from the retracted position to the juxtaposed position, the axes of the movable guide passes through a second flat plane through and perpendicular to the axis of the stationary guide and perpendicular to said first flat plane.
Claim 13
Dependent Claim
59 words
Apparatus as defined in claim 7, wherein: the axes of said first and second guides, in their retracted position, define a first Plane; the axes of said first and second guides, in their juxtaposed position, define a second plane; and the smallest angle of rotation necessary to bring said first plane parallel to said second plane exceeds 90* .
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 |