Patent US3615541A successfully refreshed from Google Patents.
US3615541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide transparency unit for in camera processing
Assignee: Eastman Kodak Co
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Filing: 1967-10-16
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Granted: 1971-10-26
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Expires: 1987-10-16
Abstract
Abstract A slide transparency unit is provided with a pair of rupturable pods attached to a rectangular mount having a central opening, across which a photosensitive transparency extends. The first pod is adapted to be ruptured so that a developing agent contained therein is injected into a space between the transparency and a strippable sheet so that development of the transparency image can take place. After a suitable development period, the second pod is ruptured and the developing agent therein also is injected into the space between the transparency and the strippable sheet and spread across the transparency so that the image is fixed on the transparency. Finally, the strippable sheet, the pods, and any unabsorbed developing agents are stripped from the unit so that the unit is ready for viewing.
Inventors
- 👤 Nerwin Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:55
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/32; G03B17/34
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
105 words
A slide transparency unit adapted to be exposed and processed by a camera, the unit comprising: a transparency viewable after processing by transmitting light through said transparency; first and second rupturable pods attached to said unit adjacent to said transparency, each pod containing a processing agent extrudable onto said transparency after exposure thereof, the first pod including a rupturable lip and means extending toward said transparency for directing processing agent onto said transparency; and rupturable means separating said first and second pods, the processing agent in said second pod being transferable into said first pod and onto said tRansparency upon rupture of said rupturable means.
Claim 2
Dependent Claim
169 words
A slide transparency unit adapted to be exposed and processed within a camera, the unit comprising: a generally flat mount having a rectangular opening therein; a transparency extending across said opening and attached to said mount, said transparency being adapted to be viewed after processing by transmitting light through said opening and said transparency; a strippable sheet attached to a surface of said mount and extending over said opening for defining a space between said transparency and said sheet, said sheet having first and second sides, and means defining an aperture extending entirely through said sheet from the first side to the second side; a rupturable pod unit attached to said strippable sheet on the opposite side of said sheet from said transparency, said pod unit being adjacent to said opening for releasing a processing agent through said aperture into said space after exposure of said transparency; and grasping means coupled to said strippable sheet, contiguous to said mount, for separating said strippable sheet from said mount after processing.
Claim 3
Dependent Claim
55 words
A transparency unit as set forth in claim 3 further including: an elongated slot in said sheet adjacent to one edge of said opening; and a rupturable lip on said pod unit extending through said slot to said opening for directing said processing agent in said pod unit through said sheet and into said space.
Claim 4
Dependent Claim
39 words
A transparency unit as set forth in claim 3 wherein said pod unit includes: first and second pods, said first pod being adapted to contain a processing agent and said second pod being adapted to contain a fixing agent.
Claim 5
Dependent Claim
68 words
A transparency unit as set forth in claim 3 wherein said pod unit further includes: means coupled to said first pod and extending through said sheet for directing an agent in said first pod into said space; and rupturable means separating said first and second pods, an agent in said second pod being transferable through said first pod and into said space upon rupture of said rupturable means.
Claim 6
Dependent Claim
30 words
A transparency unit as set forth in claim 3 wherein said grasping means includes: a flap extending around one end of said mount to the other side of said mount.
Claim 7
Dependent Claim
33 words
A transparency unit as set forth in claim 3 wherein said grasping means includes: a flap extending over one edge of said mount but terminating short of the other side of said mount.
Claim 8
Dependent Claim
30 words
A transparency unit as set forth in claim 3, wherein said grasping means includes: a tab which is fixedly attached to said strippable sheet and is thicker than said sheet.
Claim 9
Dependent Claim
21 words
A transparency unit as set forth in claim 9 wherein said strippable sheet extends between said pod unit and said tab.
Claim 10
Dependent Claim
31 words
A transparency unit as set forth in claim 9 wherein said tab is integrally formed with one edge of said mount and is adapted to be broken away from said edge.
Claim 11
Dependent Claim
45 words
A transparency unit as set forth in claim 11 wherein said rupturable pod unit includes: two pods attached to said strippable sheet, said sheet extending between said pods and said tab and having means defining a slot located adjacent to said edge of said mount.
Claim 12
Dependent Claim
17 words
A transparency unit as set forth in claim 9 wherein said tab is separable from said mount.
Claim 13
Dependent Claim
43 words
A transparency unit as set forth in claim 13 wherein said rupturable pod unit includes: two pods attached to said strippable sheet, said sheet extending between one of said pods and said mount and between the other of said pods and said tab.
Claim 14
Dependent Claim
20 words
A transparency unit as set forth in claim 13 wherein said sheet has a slot therein spaced from said tab.
Claim 15
Dependent Claim
117 words
A self-processing photographic film unit comprising: a photosensitive element for recording a latent image processable by spreading a processing agent across said element; a cover sheet extending across said photosensitive element for assisting in the spreading of a processing agent across said element, said cover sheet haviNg a first side facing said element and a second side facing away from said element; a pod for releasably containing a processing agent, said pod being coupled to the second side of said cover sheet; and means including a slot in said cover sheet for directing processing agent released from said container to the first side of said cover sheet and onto said photosensitive element for spreading across said element.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |