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US3852780A Expired / Lapsed US ⏱️ 0.0 years remaining

Film pack adapter

Assignee: Polaroid Corp
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Filing: 1973-03-05
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Granted: 1974-12-03
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Expires: 1993-03-05
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Abstract

Abstract A holder for film packs containing film units of the selfprocessing type. The holder contains processing rollers, and is formed with a framing aperture on a side adapted to be secured to an adapter plate. The side containing the framing aperture is faced off to provide a plane surface locating the uppermost film unit in a cassette, and is formed with a peripheral groove to accept a light seal for a dark slide. The holder is readily adapted for use with a variety of cameras without remodeling the camera back.

Inventors

  • 👤 R Augustin
  • 👤 D Moodie

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 07:29
CPC Classifications
G; G03; G03D; G03D9/00; G03D9/02; G03B; G03B17/00; G03B17/28; G03B17/32; G03B17/34

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 110 words
A front housing for a film pack holder comprising a plane front wall formed with a rectangular framing aperture, a rectangular groove formed in said front wall on a first side of said front wall and surrounding said framing aperture, a series of bosses formed on a second side of said front wall opposite said first side and surrounding said framing aperture within the confines of said rectangular groove, and means forming fastener receiving apertures extending through said front wall and into each of said bosses, said fastener receiving apertures being located between said groove and said framing aperture in an array extending about three sides of said framing aperture.
Claim 2
Dependent Claim 110 words
A front housing for a film pack holder comprising a plane front wall formed with a rectangular framing aperture, a rectangular groove formed in said front wall on a first side of said front wall and surrounding said framing aperture, a series of bosses formed on a second side of said front wall opposite said first side and surrounding said framing aperture within the confines of said rectangular groove, and means forming fastener receiving apertures extending through said front wall and into each of said bosses, said fastener receiving apertures being located between said groove and said framing aperture in an array extending about three sides of said framing aperture.
Claim 3
Dependent Claim 144 words
A photographic adapter plate, comprising a generally rectangular sheet of opaque material having an outstanding ridge on a first side adapted to engage a camera back, a rectangular framing aperture formed in said sheet to admit light therethrough, a generally U-shaped ridge formed on a second side of said sheet opposite said first side and surrounding said aperture on three sides to form a light shield with cooperating external structure, means forming a plane surface between said ridge and said aperture on said second side to guide and support a dark slide, a groove formed in said sheet on said second side between the ends of said U-shaped ridge at one end of said plane surface, and means forming a sloping ledge on said second side adjacent said groove for guiding a dark slide over said groove into sliding engagement with said plane surface.
Claim 4
Dependent Claim 144 words
A photographic adapter plate, comprising a generally rectangular sheet of opaque material having an outstanding ridge on a first side adapted to engage a camera back, a rectangular framing aperture formed in said sheet to admit light therethrough, a generally U-shaped ridge formed on a second side of said sheet opposite said first side and surrounding said aperture on three sides to form a light shield with cooperating external structure, means forming a plane surface between said ridge and said aperture on said second side to guide and support a dark slide, a groove formed in said sheet on said second side between the ends of said U-shaped ridge at one end of said plane surface, and means forming a sloping ledge on said second side adjacent said groove for guiding a dark slide over said groove into sliding engagement with said plane surface.
Claim 5
Dependent Claim 198 words
A film pack holder for self-processing film, comprising a forward housing having a front wall formed with a rectangular framing aperture, a rectangular groove formed in said front wall on a first side of said front wall and surrounding said framing aperture, a rear housing, means hinging said forward housing to said rear housing for movement between an open position in which a film pack can be inserted in and removed from said housings and a closed position in which a film pack can be enclosed by said housings but exposed through said aperture, a pair of processing rolls, mounting means mounting said rolls for rotation about adjacent parallel axes, means for detachably securing said mounting means and said rolls in one of said housings, a series of bosses formed on and extending from said front wall on a side of said front wall opposite said first side, said bosses being located in an array extending about three sides of said framing aperture, and means forming a series of holes through said front wall and extending into said bosses, said holes being located in an array within the confines of said groove and spaced from said framing aperture.
Claim 6
Dependent Claim 198 words
A film pack holder for self-processing film, comprising a forward housing having a front wall formed with a rectangular framing aperture, a rectangular groove formed in said front wall on a first side of said front wall and surrounding said framing aperture, a rear housing, means hinging said forward housing to said rear housing for movement between an open position in which a film pack can be inserted in and removed from said housings and a closed position in which a film pack can be enclosed by said housings but exposed through said aperture, a pair of processing rolls, mounting means mounting said rolls for rotation about adjacent parallel axes, means for detachably securing said mounting means and said rolls in one of said housings, a series of bosses formed on and extending from said front wall on a side of said front wall opposite said first side, said bosses being located in an array extending about three sides of said framing aperture, and means forming a series of holes through said front wall and extending into said bosses, said holes being located in an array within the confines of said groove and spaced from said framing aperture.
Claim 7
Dependent Claim 155 words
A film pack adapter for self-processing films, comprising an adapter plate having a first side adapted to engage a camera back and a second side opposite said first side, means forming a first generally rectangular framing aperture in said adapter plate, means forming a generally U-shaped ridge about three sides of said first framing aperture on said second side, a groove formed in said adapter plate across the ends of said ridge on said second side, a film pack holder comprising a forward housing, a rear housing, means hinGing said forward housing to said rear housing, said forward housing comprising a front wall, means forming a generally rectangular second framing aperture in said front wall, a rectangular groove formed in said front wall surrounding said second framing aperture and receiving said U-shaped ridge, a pair of processing rolls, and means mounting said processing rolls in one of said housings for rotation about adjacent parallel axes.
Claim 8
Dependent Claim 155 words
A film pack adapter for self-processing films, comprising an adapter plate having a first side adapted to engage a camera back and a second side opposite said first side, means forming a first generally rectangular framing aperture in said adapter plate, means forming a generally U-shaped ridge about three sides of said first framing aperture on said second side, a groove formed in said adapter plate across the ends of said ridge on said second side, a film pack holder comprising a forward housing, a rear housing, means hinGing said forward housing to said rear housing, said forward housing comprising a front wall, means forming a generally rectangular second framing aperture in said front wall, a rectangular groove formed in said front wall surrounding said second framing aperture and receiving said U-shaped ridge, a pair of processing rolls, and means mounting said processing rolls in one of said housings for rotation about adjacent parallel axes.
Claim 9
Dependent Claim 187 words
A film pack holder for use in adapting a camera to accept self-processing film, comprising a forward housing, a rear housing, means hinging said forward housing to said rear housing to form a container than can be opened to admit a film pack and closed to enclose the film pack, said forward housing comprising a front wall panel faced off to form a plane mounting surface, means forming a framing aperture in said front wall panel, means forming a groove in said front wall surrounding said framing aperture, a series of bosses formed on a side of said front wall inside of said forward housing, means forming apertures through said wall into said bosses to receive fastening screws for securing said holder to cooperating structure, said apertures being located between said groove and said framing aperture and being spaced from said framing aperture by a distance sufficient to admit light sealing edge portions of a dark slide overlying said framing aperture with clearance, a pair of processing rolls, and means in one of said housings for mounting said processing rolls for rotation about substantially parallel adjacent axes.
Claim 10
Dependent Claim 187 words
A film pack holder for use in adapting a camera to accept self-processing film, comprising a forward housing, a rear housing, means hinging said forward housing to said rear housing to form a container than can be opened to admit a film pack and closed to enclose the film pack, said forward housing comprising a front wall panel faced off to form a plane mounting surface, means forming a framing aperture in said front wall panel, means forming a groove in said front wall surrounding said framing aperture, a series of bosses formed on a side of said front wall inside of said forward housing, means forming apertures through said wall into said bosses to receive fastening screws for securing said holder to cooperating structure, said apertures being located between said groove and said framing aperture and being spaced from said framing aperture by a distance sufficient to admit light sealing edge portions of a dark slide overlying said framing aperture with clearance, a pair of processing rolls, and means in one of said housings for mounting said processing rolls for rotation about substantially parallel adjacent axes.
Claim 11
Dependent Claim 57 words
The apparatus of claim 5, further comprising wall means formed integral with said front wall and said bosses and forming a receiving chamber for a film pack serving to guide the film pack into registry with said framing aperture, and further comprising an elongated strip of resilient light sealing material received in one side of said groove.
Claim 12
Dependent Claim 209 words
A film pack adapter for self-processing films, comprising an adapter plate having a first side adapted to engage a camera back and a second side opposite said first side, means forming a first generally rectangular framing aperture in said adapter plate, means forming a generally U-shaped ridge about three sides of said first framing aperture on said second side, a groove formed in said adapter plate across the ends of said ridge, a first strip of resilient light sealing material in said groove, a film pack holder comprising a forward housing, a rear housing, means hinging said forward housing to said rear housing, said forward housing comprising a front wall formed with a second generally rectangular framing aperture confronting said first aperture, a rectangular groove formed in said front wall surrounding said second framing aperture and receiving said U-shaped ridge, a second strip of resilient light sealing material in a side of said groove confronting said first strip, a dark slide slidably mounted between said adapter plate and said forward housing and extending between said strips, inside of said rectangular groove and covering said second framing aperture, a pair of processing rolls, and means journalling said processing rolls in one of said housings for rotation about adjacent parallel axes.
Claim 13
Dependent Claim 209 words
A film pack adapter for self-processing films, comprising an adapter plate having a first side adapted to engage a camera back and a second side opposite said first side, means forming a first generally rectangular framing aperture in said adapter plate, means forming a generally U-shaped ridge about three sides of said first framing aperture on said second side, a groove formed in said adapter plate across the ends of said ridge, a first strip of resilient light sealing material in said groove, a film pack holder comprising a forward housing, a rear housing, means hinging said forward housing to said rear housing, said forward housing comprising a front wall formed with a second generally rectangular framing aperture confronting said first aperture, a rectangular groove formed in said front wall surrounding said second framing aperture and receiving said U-shaped ridge, a second strip of resilient light sealing material in a side of said groove confronting said first strip, a dark slide slidably mounted between said adapter plate and said forward housing and extending between said strips, inside of said rectangular groove and covering said second framing aperture, a pair of processing rolls, and means journalling said processing rolls in one of said housings for rotation about adjacent parallel axes.
Claim 14
Dependent Claim 44 words
The apparatus of claim 7, further comprising a series of bosses extending from said front wall on a side opposite said groove, and means forming a series of apertures through said front wall within the confines of said groove and extending into said bosses.
Claim 15
Dependent Claim 76 words
The apparatus of claim 7, further comprising means forming a first exit slot between said housings, said housings being movable about said hinging means between an open position and a closed positon and said slot being formed between said housings along a line parallel to the axes of said rolls in said closed position of said housings, and means forming a second slot in one of said housings extending along a line parallel to said axes.

References Cited (Backward Citations)

DE375834C Cited
US776291A Cited
US1266323A Cited
US2353895A Cited
US2326075A Cited
US3359877A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-12-02 1978-06-03 1978-12-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-12-02 1982-06-03 1982-12-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-12-02 1986-06-03 1986-12-03 $7700.00 Window Closed / Lapsed

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