US3877045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel photographic film assemblies
Assignee: Polaroid Corp
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Filing: 1973-09-21
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Granted: 1975-04-08
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Expires: 1993-09-21
Abstract
Abstract A photographic film assembly which comprises a cassette; a supply of photographic film disposed within the cassette; a battery positioned within the cassette which includes one or more cells containing an aqueous electrolyte possessing an ionizable ammonium salt, and gas collector means positioned within the cassette for capture of volatile effluvia liberated by the battery.
Inventors
- 👤 Stanley M Bloom
- 👤 James W Foley
- 👤 Nicholas S Hadzekyriakides
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:23
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/52; G; G03; G03B; G03B17/00; G03B17/26; G03B17/28; G03B17/32; G03D; G03D9/00; G03D9/02; G03D9/025; H01M50/00; H01M50/20; H01M50/204; H01M50/207; H01M50/209; H01M6/00; H01M6/40; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
148 words
A photographic film assembly which comprises, in combination: a. a photographic film cassette including a withdrawal orifice positioned in a wall of the cassette through which a supply of photographic film is adapted to be selectively withdrawn; b. a supply of photographic film positioned in the cassette for selective withdrawal from the cassette through the orifice; c. a battery incorporating electrochemically active components and positioned in the cassette, including, in combination: i. an anode; ii. a cathode superposed substantially coextensive the anode; iii. a battery separator positioned intermediate and extending at least coextensive the facing surfaces of the anode and the cathode; and iv. an electrolyte disposed in contact with the facing surfaces of the anode and the cathode and including an ammonium salt; and d. gas collector means positioned in the cassette, externally of said electrochemically active components, for capture of volatile effluvia exiting from the battery.
Claim 2
Dependent Claim
148 words
A photographic film assembly which comprises, in combination: a. a photographic film cassette including a withdrawal orifice positioned in a wall of the cassette through which a supply of photographic film is adapted to be selectively withdrawn; b. a supply of photographic film positioned in the cassette for selective withdrawal from the cassette through the orifice; c. a battery incorporating electrochemically active components and positioned in the cassette, including, in combination: i. an anode; ii. a cathode superposed substantially coextensive the anode; iii. a battery separator positioned intermediate and extending at least coextensive the facing surfaces of the anode and the cathode; and iv. an electrolyte disposed in contact with the facing surfaces of the anode and the cathode and including an ammonium salt; and d. gas collector means positioned in the cassette, externally of said electrochemically active components, for capture of volatile effluvia exiting from the battery.
Claim 3
Dependent Claim
33 words
A photographic film assembly as defined in claim 1 wherein the gas collector means is adapted to collect ammonia and is positioned in the cassette for capture of ammonia exiting from the battery.
Claim 4
Dependent Claim
27 words
A photographic film assembly as defined in claim 2 wherein the gas collector means comprises a metal salt adapted to form an ammoniate upon contact with ammonia.
Claim 5
Dependent Claim
27 words
A photographic film assembly as defined in claim 3 wherein the metal salt comprises a transition metal salt adapted to form an ammoniate upon contact with ammonia.
Claim 6
Dependent Claim
29 words
A photographic film assembly as defined in claim 4 wherein the cation of the transition metal salt is selected from the group consisting of Fe++, Ni++, Mn++, and Cu++.
Claim 7
Dependent Claim
32 words
A photographic film assembly as defined in claim 5 wherein the anion of the transistion metal salt is selected from the group consisting of Cl.sup.- , Br.sup.- , I.sup.- and SO.sub.4 .sup.=.
Claim 8
Dependent Claim
26 words
A photographic film assembly as defined in claim 3 wherein the metal salt is disposed in an ammonia permeable fibrous matrix adapted to adsorb water vapor.
Claim 9
Dependent Claim
26 words
A photographic film assembly as defined in claim 3 wherein the metal salt is disposed in an ammonia permeable polymeric matrix adapted to adsorb water vapor.
Claim 10
Dependent Claim
24 words
A photographic film assembly as defined in claim 8 wherein the polymeric matrix comprises a coating carried on a dimensionally stable coating support member.
Claim 11
Dependent Claim
40 words
A photographic film assembly as defined in claim 1 wherein the gas collector means comprises a metal salt adapted to form an ammoniate upon contact with ammonia gas in intimate admixture with a particulate dispersion of a water vapor adsorbent.
Claim 12
Dependent Claim
32 words
A photographic film assembly as defined in claim 10 wherein the water vapor adsorbent is selected from the group consisting of ammonia and water vapor adsorbent carbon black, alumina and silica gel.
Claim 13
Dependent Claim
45 words
A photographic film assembly as defined in claim 11 wherein the metal salt comprises a transition metal salt adapted to form an ammoniate upon contact with ammonia in intimate surface contact with a particulate dispersion of carbon black adapted to adsorb ammonia and water vapor.
Claim 14
Dependent Claim
26 words
A photographic film assembly as defined in claim 12 wherein the transition metal salt is selected from the group consisting of ferrous chloride and ferrous sulfate.
Claim 15
Dependent Claim
172 words
A photographic film assembly which comprises, in combination: a. a photographic film cassette adapted for enclosing a plurality of photographic film units arranged in stacked relationship and including a forward wall possessing a light-transmitting section to permit exposure of the forwardmost film unit and a withdrawal opening in one wall of the container permitting selective withdrawal of the film units following exposure thereof; b. a plurality of photographic film units disposed in stacked relationship within the cassette next adjacent the forward wall; c. a battery positioned in the cassette and including, in combination: i. an anode; ii. a cathode superposed substantially coextensive the anode; iii. a battery separator positioned intermediate and extending at least coextensive the facing surfaces of the anode and the cathode; and iv. an electrolyte disposed in contact with the facing surfaces of the anode and the cathode and including an ionizable ammonium salt; and d. gas collector means positioned in the cassette intermediate the battery and the film units for capture of volatile effluvia exiting from the battery.
Claim 16
Dependent Claim
172 words
A photographic film assembly which comprises, in combination: a. a photographic film cassette adapted for enclosing a plurality of photographic film units arranged in stacked relationship and including a forward wall possessing a light-transmitting section to permit exposure of the forwardmost film unit and a withdrawal opening in one wall of the container permitting selective withdrawal of the film units following exposure thereof; b. a plurality of photographic film units disposed in stacked relationship within the cassette next adjacent the forward wall; c. a battery positioned in the cassette and including, in combination: i. an anode; ii. a cathode superposed substantially coextensive the anode; iii. a battery separator positioned intermediate and extending at least coextensive the facing surfaces of the anode and the cathode; and iv. an electrolyte disposed in contact with the facing surfaces of the anode and the cathode and including an ionizable ammonium salt; and d. gas collector means positioned in the cassette intermediate the battery and the film units for capture of volatile effluvia exiting from the battery.
Claim 17
Dependent Claim
30 words
A photographic film assembly as defined in claim 14 wherein the cassette includes spring means biasing the film units towards the forward wall and the battery toward the rear wall.
Claim 18
Dependent Claim
62 words
A photographic film assembly as defined in claim 15 including first and second openings in the rear wall of the cassette, the first opening to permit conductor contact with the anode or cathode next adjacent the rear wall and the second opening to permit conductor contact with a conductor disposed in the container in contact with the electrode distal the rear wall.
Claim 19
Dependent Claim
32 words
A photographic film assembly as defined in claim 15 including at least one opening in a wall of the cassette to permit conductor contact with each of the anode and the cathode.
Claim 20
Dependent Claim
27 words
A photographic film assembly as defined in claim 14 wherein each of the photographic film units comprises an integral negative positive color diffusion transfer process film unit.
Claim 21
Dependent Claim
118 words
A photographic film assembly as defined in claim 18 wherein each of the color diffusion transfer process film units includes, in combination, a photosensitive silver halide layer having associated therewith a diffusion transfer process dye image-forming material adapted to diffuse to a diffusion transfer process image-receiving layer as a function of the point-to-point degree of exposure and processing of the photosensitive silver halide layer; a diffusion transfer process image-receiving layer adapted to receive dye image-forming material diffusing thereto to provide dye transfer image formation, and means for providing an opaque layer disposed intermediate the photosensitive silver halide layer and the image-receiving layer against which the dye transfer image may be viewed subsequent to formation in the image-receiving layer.
Claim 22
Dependent Claim
28 words
A photographic film assembly as defined in claim 14 wherein the gas collector means comprises a gas adsorbent matrix adapted to capture ammonia and water vapor contacted therewith.
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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |