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US3705542A Expired / Lapsed US ⏱️ 0.0 years remaining

Photographic film cartridge

Assignee: Polaroid Corp
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Filing: 1971-04-21
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Granted: 1972-12-12
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Expires: 1991-04-21
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Abstract

Abstract This disclosure depicts film cartridges for storing a plurality of film units in stacked relationship for successive exposure in photographic cameras of the ''''self-developing'''' type. The cartridges disclosed each include a spring platen for urging a plurality of film units stacked thereon toward an exposure window in a top wall of the cartridge. A number of embodiments of devices for retaining and accurately positioning the spring platen are disclosed.

Inventors

  • 👤 Nicholas Gold

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 15:58
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52; G03B17/28; G03B17/32; G03B17/34

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 142 words
A film cartridge for storing a plurality of film units in stacked relationship for successive exposure in a photographic camera comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein through which the film units are withdrawn, and a bottom wall having on its inner surface at least one depression; and spring platen means disposed within said casing beneath the film units and supported by said bottom wall for urging film units stacked thereon toward said top wall, said spring platen means having a body and foot means extending downwardly from said body and positioned thereon so as to be received in said depression in said bottom wall of said casing during such urging for preventing movement of said body toward said end wall during movement of a film unit through said withdrawal opening.
Claim 2
Dependent Claim 142 words
A film cartridge for storing a plurality of film units in stacked relationship for successive exposure in a photographic camera comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein through which the film units are withdrawn, and a bottom wall having on its inner surface at least one depression; and spring platen means disposed within said casing beneath the film units and supported by said bottom wall for urging film units stacked thereon toward said top wall, said spring platen means having a body and foot means extending downwardly from said body and positioned thereon so as to be received in said depression in said bottom wall of said casing during such urging for preventing movement of said body toward said end wall during movement of a film unit through said withdrawal opening.
Claim 3
Dependent Claim 242 words
A film cartridge for storing a plurality of film units in stacked relationship for successive exposure in a photographic camera comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein through which the film units are withdrawn, and a bottom wall having on its inner surface at least one depression; spring platen means disposed within said casing beneath the film units and supported by said bottom wall for urging film units stacked thereon toward said top wall, said spring platen means having a body and foot means extending downwardly from said body and positioned thereon so as to be received in said depression in said bottom wall of said casing; and batterY means comprising a card supporting dry cell means located within said casing beneath said spring platen means, said card having at least one aperture therein positioned to register with said depression in said bottom wall of said casing and wherein said foot means passes through said aperture in said card and into said depression in said bottom wall, said aperture being located in said card a predetermined distance from an end edge abutting said end wall which is effective to position the film units in said casing and to space said spring platen means away from said end wall and thereby preclude entrance of any portion of said spring platen means into said withdrawal opening in said end wall of said casing.
Claim 4
Dependent Claim 242 words
A film cartridge for storing a plurality of film units in stacked relationship for successive exposure in a photographic camera comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein through which the film units are withdrawn, and a bottom wall having on its inner surface at least one depression; spring platen means disposed within said casing beneath the film units and supported by said bottom wall for urging film units stacked thereon toward said top wall, said spring platen means having a body and foot means extending downwardly from said body and positioned thereon so as to be received in said depression in said bottom wall of said casing; and batterY means comprising a card supporting dry cell means located within said casing beneath said spring platen means, said card having at least one aperture therein positioned to register with said depression in said bottom wall of said casing and wherein said foot means passes through said aperture in said card and into said depression in said bottom wall, said aperture being located in said card a predetermined distance from an end edge abutting said end wall which is effective to position the film units in said casing and to space said spring platen means away from said end wall and thereby preclude entrance of any portion of said spring platen means into said withdrawal opening in said end wall of said casing.
Claim 5
Dependent Claim 73 words
The cartridge defined by claim 2 wherein said foot means includes a tapered end portion having at least one shoulder at the base of said tapered portion, said aperture in said card being of a length capable of passing said tapered end portion while blocking passage of said shoulder, whereby said card acts to carry said foot means, the tip of said tapered end portion passing through said card and into said depression.
Claim 6
Dependent Claim 66 words
The cartridge defined by claim 2 wherein said foot means on said spring platen means comprises two laterally spaced feet, wherein said bottom wall has two depressions registered with said feet, and wherein said card has a pair of apertures registered with said feet, the duality of said feet, depressions and card apertures providing anti-rotational stability for the card and thus for said spring platen means.
Claim 7
Dependent Claim 65 words
The cartridge defined by claim 1 wherein said foot means has at least an end portion angled obliquely with respect to said bottom wall of said casing, and wherein said depression has a surface for engaging said end portion of said foot means to limit movement of said spring platen means in a direction toward said end wall through which said film units are withdrawn.
Claim 8
Dependent Claim 242 words
A film cartridge for storing a plurality of film units in stacked relationship for successive exposure in a photographic camera comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein through which the film units are withdrawn, and a bottom wall having on its inner surface at least one depression; spring platen means disposed within said casing beneath the film units and supported by said bottom wall for urging film units stacked thereon toward said top wall, said spring platen means having a body and foot means extending downwardly from said body and positioned thereon so as to be received in said depression in said bottom wall of said casing; and battery means comprising a card supporting dry cell means, located in said casing beneath said spring platen means, said card having at least one aperture therein positioned to be registrable with said depression in said bottom wall of said casing, wherein said foot means passes through said aperture in said card so as to thereby position said card relative to said spring platen means, wherein said foot means has at least an end portion angled obliquely with respect to said bottom wall of said casing, and wherein said depression has a surface for engaging said end portion of said foot means to limit movement of said spring platen means in a direction toward said end wall through which said film units are withdrawn.
Claim 9
Dependent Claim 242 words
A film cartridge for storing a plurality of film units in stacked relationship for successive exposure in a photographic camera comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein through which the film units are withdrawn, and a bottom wall having on its inner surface at least one depression; spring platen means disposed within said casing beneath the film units and supported by said bottom wall for urging film units stacked thereon toward said top wall, said spring platen means having a body and foot means extending downwardly from said body and positioned thereon so as to be received in said depression in said bottom wall of said casing; and battery means comprising a card supporting dry cell means, located in said casing beneath said spring platen means, said card having at least one aperture therein positioned to be registrable with said depression in said bottom wall of said casing, wherein said foot means passes through said aperture in said card so as to thereby position said card relative to said spring platen means, wherein said foot means has at least an end portion angled obliquely with respect to said bottom wall of said casing, and wherein said depression has a surface for engaging said end portion of said foot means to limit movement of said spring platen means in a direction toward said end wall through which said film units are withdrawn.
Claim 10
Dependent Claim 165 words
A photographic film cartridge, comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein, and a bottom wall; a plurality of film units disposed in stacked relationship in said casing for successive withdrawal from said casing through said withdrawal opening in said end wall; spring platen means disposed within said casing beneath said film units and supported by said bottom wall for urging said film units toward said top wall of said casing; and battery means within said casing including spacing means for engaging said spring platen means and retaining said platen means agaInst movement relative to said battery means beyond a predetermined limit in a direction toward said end wall, said battery means engaging said casing to limit the movement of said battery means relative thereto in said direction toward said end wall, said spacing means effecting a predetermined position in said casing of said spring platen means and thus of said film units supported thereon.
Claim 11
Dependent Claim 165 words
A photographic film cartridge, comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein, and a bottom wall; a plurality of film units disposed in stacked relationship in said casing for successive withdrawal from said casing through said withdrawal opening in said end wall; spring platen means disposed within said casing beneath said film units and supported by said bottom wall for urging said film units toward said top wall of said casing; and battery means within said casing including spacing means for engaging said spring platen means and retaining said platen means agaInst movement relative to said battery means beyond a predetermined limit in a direction toward said end wall, said battery means engaging said casing to limit the movement of said battery means relative thereto in said direction toward said end wall, said spacing means effecting a predetermined position in said casing of said spring platen means and thus of said film units supported thereon.
Claim 12
Dependent Claim 216 words
A photographic film cartridge comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein, and a bottom wall; a plurality of film units disposed in stacked relationship in said casing for successive withdrawal from said casing through said withdrawal opening in said end wall of said casing; spring platen means disposed within said casing beneath said film units and supported by said bottom wall for urging said film units toward said top wall of said casing, said spring platen means having a body and foot means extending downwardly therefrom, said foot means having a tapered end portion and including shoulder means at the base of said tapered portion; and battery means within said casing including a relatively stiff card, said card containing at least one aperture positioned to register with and retentively receive said foot means on said spring platen means, said aperture having a predetermined length selected to pass said tapered end portion while blocking passage of said shoulder means; said card engaging said casing to limit the movement thereof in a direction toward said end wall, said aperture being located in said card such as to effect a proper positioning in said casing of said spring platen means and thus of said film unit supported thereon.
Claim 13
Dependent Claim 216 words
A photographic film cartridge comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein, and a bottom wall; a plurality of film units disposed in stacked relationship in said casing for successive withdrawal from said casing through said withdrawal opening in said end wall of said casing; spring platen means disposed within said casing beneath said film units and supported by said bottom wall for urging said film units toward said top wall of said casing, said spring platen means having a body and foot means extending downwardly therefrom, said foot means having a tapered end portion and including shoulder means at the base of said tapered portion; and battery means within said casing including a relatively stiff card, said card containing at least one aperture positioned to register with and retentively receive said foot means on said spring platen means, said aperture having a predetermined length selected to pass said tapered end portion while blocking passage of said shoulder means; said card engaging said casing to limit the movement thereof in a direction toward said end wall, said aperture being located in said card such as to effect a proper positioning in said casing of said spring platen means and thus of said film unit supported thereon.
Claim 14
Dependent Claim 258 words
A photographic film cartridge, comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein, and a bottom wall having on its inner surface at least one depression; a plurality of film units disposed in stacked relationship in said casing for successive withdrawal from said casing through said withdrawal opening in said end wall of said casing; spring platen means disposed within said casing beneath said film units and supported by said bottom wall for urging said film units toward said top wall of said casing, said spring platen means having a body and foot means extending downwardly from said body; and battery means comprising a card supporting dry cell means, said card having at least one aperture therein positioned to register with said depression in said bottom wall of said casing, said foot means of said spring platen means being positioned on said body and adapted to pass through said aperture in said card into said depression in said bottom wall, said aperture being located in said card a predetermined distance from an end edge of said card abutting said end wall which is effective to position said film units in said casing and to space said spring platen means away from said end wall and thereby preclude entrance of any portion of said spring platen means into said withdrawal opening in said end wall, the provision of said depression assuring passage of said foot means through said card and the capture of said spring platen means by said card.
Claim 15
Dependent Claim 258 words
A photographic film cartridge, comprising: a casing having spaced walls including a top wall, an end wall having a withdrawal opening therein, and a bottom wall having on its inner surface at least one depression; a plurality of film units disposed in stacked relationship in said casing for successive withdrawal from said casing through said withdrawal opening in said end wall of said casing; spring platen means disposed within said casing beneath said film units and supported by said bottom wall for urging said film units toward said top wall of said casing, said spring platen means having a body and foot means extending downwardly from said body; and battery means comprising a card supporting dry cell means, said card having at least one aperture therein positioned to register with said depression in said bottom wall of said casing, said foot means of said spring platen means being positioned on said body and adapted to pass through said aperture in said card into said depression in said bottom wall, said aperture being located in said card a predetermined distance from an end edge of said card abutting said end wall which is effective to position said film units in said casing and to space said spring platen means away from said end wall and thereby preclude entrance of any portion of said spring platen means into said withdrawal opening in said end wall, the provision of said depression assuring passage of said foot means through said card and the capture of said spring platen means by said card.
Claim 16
Dependent Claim 74 words
The cartridge defined by claim 9 wherein said foot means includes a tapered end portion having at least one shoulder at the base of said tapered portion, said aperture in said card being of a length capable of passing said tapered end portion while blocking passage of said shoulder, whereby said card acts to carry said spring platen means, the tip of said tapered end portion passing through said card and into said depression.
Claim 17
Dependent Claim 67 words
The cartridge defined by claim 10 wherein said foot means on said spring platen means comprises two laterally spaced feet, wherein said bottom wall has two depressions therein registered with said feet, and wherein said card has a pair of apertures registered with said feet, the duality of said feet, dePressions and card apertures providing anti-rotational stability for the card and thus for said spring platen means.

References Cited (Backward Citations)

US3225671A Cited
US3543662A Cited
US3607283A Cited
US3561339A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-12-12 1976-06-12 1976-12-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-12-12 1980-06-12 1980-12-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-12-12 1984-06-12 1984-12-12 $7700.00 Window Closed / Lapsed

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