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US3736051A Expired / Lapsed US ⏱️ 0.0 years remaining

Photographic apparatus for motion picture projection

Assignee: Polaroid Corp
•
Filing: 1971-08-24
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Granted: 1973-05-29
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Expires: 1991-08-24
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Abstract

Abstract Projector for use with a motion picture film cassette, employing a housing having a front viewing face and a cassette-receiving cavity in communication with the top surface of the housing. A door member mounted at the rear of the opening and configured to block the opening when pivoted into closing position thereacross, carries a cassette-receiving guide which is adapted to receive the cassette from the front of the projector when the door is in its open position and to carry it to an operative location in the cavity when the door is pivoted to its closed position. The door is adapted to displace a drive mechanism of the apparatus into operative relation with the cassette, and the guide is coupled to the door through a lost motion member such that the cassette remains fixed in its operative location during engagement and disengagement of the drive mechanism. Additionally, a handle member is pivotally attached to the apparatus for selective displacement from a first position flush with a surface of the housing to a depressed position where it effects displacement of the door from its closed position and to an upright position where it is accessible for carrying of the unit.

Inventors

  • 👤 J M Conner
  • 👤 H J Salvador

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 19:13
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/26; G03B17/265; G03B21/00; G03B21/10

Claims Analysis

Total Claims: 20
Claim 1
Independent Claim 241 words
Photographic apparatus for use with a motion picture film cassette, having an opening therein and means for advancing such film past such opening for facilitating projection of images recorded on a film strip carried in such cassette, said apparatus comprising: a housing having an opening configured to facilitate the insertion of such cassette into and subsequent removal of such cassette from said apparatus; first means carried within said housing for projecting such images in a given direction towards the front face of said housing when such cassette is positioned at a predetermined location within said apparatus; second means, displaceably mounted on said housing for movement between a first position and a second position, for receiving such cassette in a direction from the front of said housing when said second means is in its said first position and for positioning such cassette at said predetermined location within said apparatus when said second means is displaced to its said second position; third means for driving such film advancing means of such cassette, said driving means mounted within said housing for displacement between a first position in engagement with such advancing means when such cassette is positioned within said apparatus and a second position spaced from such advancing means; and fourth means responsive to movement of said second means for displacing said third means between its said first and second positions when said second means is displaced between its said second and first positions.
Claim 2
Dependent Claim 241 words
Photographic apparatus for use with a motion picture film cassette, having an opening therein and means for advancing such film past such opening for facilitating projection of images recorded on a film strip carried in such cassette, said apparatus comprising: a housing having an opening configured to facilitate the insertion of such cassette into and subsequent removal of such cassette from said apparatus; first means carried within said housing for projecting such images in a given direction towards the front face of said housing when such cassette is positioned at a predetermined location within said apparatus; second means, displaceably mounted on said housing for movement between a first position and a second position, for receiving such cassette in a direction from the front of said housing when said second means is in its said first position and for positioning such cassette at said predetermined location within said apparatus when said second means is displaced to its said second position; third means for driving such film advancing means of such cassette, said driving means mounted within said housing for displacement between a first position in engagement with such advancing means when such cassette is positioned within said apparatus and a second position spaced from such advancing means; and fourth means responsive to movement of said second means for displacing said third means between its said first and second positions when said second means is displaced between its said second and first positions.
Claim 3
Dependent Claim 85 words
The apparatus of claim 1 wherein said second means includes a guide member configured to slideably receive such cassette, and said guide member is displaceably mounted on said housing for movement between a first position, wherein at least a portion of said guide member is located exteriorly of said housing and disposed to slideably receive such cassette in a direction from the front of said housing, and a second position wherein at least said portion of said guide member is located interiorly of said housing.
Claim 4
Dependent Claim 30 words
The apparatus of claim 1 wherein said second means additionally includes means for excluding light from entering said housing opening when said second means is in its said second position.
Claim 5
Dependent Claim 87 words
The apparatus of claim 1 wherein said second means includes an elongated guide member having its longitudinal axis disposed approximately normal to the front face of said housing, said guide member having an open front end configured to slideably receive such cassette, and said guide member is displaceably mounted on said housing for movement between a first position wherein at least said front end of said guide member is located exteriorly of said housing and a second position wherein said front end is located within said housing.
Claim 6
Dependent Claim 50 words
The apparatus of claim 4 wherein said guide member is mounted for pivotal movement around an axis normal to its said longitudinal axis such that said front end of said guide member may be pivotally displaced from a position exteriorly of said housing to a position interiorly of said housing.
Claim 7
Dependent Claim 176 words
Photographic apparatus for use with a motion picture film cassette having an opening therein and means for advancing such film past such opening, said apparatus comprising: a housing having an opening configured to facilitate insertion of such cassette into and subsequent removal of such cassette from said apparatus; means for driving such film advancing means of such cassette, said driving means mounted within said housing for displacement between a first position in engagement with such advancing means when such cassette is positioned within said apparatus and a second position spaced from such advancing means; means, displaceably mounted on said housing for movement between a first and a second position, for receiving such cassette when said receiving means is in its said first position and for positioning such cassette within said apparatus when said receiving means is displaced to its said second position; and means responsive to movement of said receiving means for displacing said driving means between its said first and second positions when said receiving means is displaced between its said second and first positions.
Claim 8
Dependent Claim 176 words
Photographic apparatus for use with a motion picture film cassette having an opening therein and means for advancing such film past such opening, said apparatus comprising: a housing having an opening configured to facilitate insertion of such cassette into and subsequent removal of such cassette from said apparatus; means for driving such film advancing means of such cassette, said driving means mounted within said housing for displacement between a first position in engagement with such advancing means when such cassette is positioned within said apparatus and a second position spaced from such advancing means; means, displaceably mounted on said housing for movement between a first and a second position, for receiving such cassette when said receiving means is in its said first position and for positioning such cassette within said apparatus when said receiving means is displaced to its said second position; and means responsive to movement of said receiving means for displacing said driving means between its said first and second positions when said receiving means is displaced between its said second and first positions.
Claim 9
Dependent Claim 108 words
The apparatus of claim 6 wherein said receiving means includes a guide member displaceable between a first position wherein it is configured to receive such cassette and a second position wherein it locates such cassette in an operative position within said housing, a closure member displaceably mounted on said housing for movement between a first position wherein it blocks said housing opening and a second position wherein it does not block said housing opening, and means responsive to movement of said closure member for displacing said guide member between its said first and second positions when said closure member is displaced between its said second and first positions.
Claim 10
Dependent Claim 79 words
The apparatus of claim 6 additionally including means for projecting images recorded on such film carried in such cassette in a forward direction towards the front face of said housing, and wherein said receiving means includes a guide member adapted to slideably receive such cassette when it advanced in a given direction, and said guide member mounted on said housing such that when said receiving means is in its said first position, said given direction is a rearward direction.
Claim 11
Dependent Claim 167 words
Photographic apparatus for use with a motion picture film cassette having an opening therein and including means for advancing a film strip housed therein past such opening, said apparatus comprising: a housing having an opening therein configured to facilitate insertion of such cassette into and subsequent removal of such cassette from said apparatus; means for driving such advancing means of such cassette, said driving means mounted within said housing for displacement between a first position in engagement with such advancing means of such cassette when the latter is positioned within said apparatus and a second position spaced from such advancing means; a closure member displaceably mounted on said housing for movement between a first position wherein it blocks said housing opening and a second position wherein it does not block said housing opening; and means responsive to movement of said closure member for displacing said driving means between its said first and second positions when said closure member is displaced between its said first and second positions.
Claim 12
Dependent Claim 167 words
Photographic apparatus for use with a motion picture film cassette having an opening therein and including means for advancing a film strip housed therein past such opening, said apparatus comprising: a housing having an opening therein configured to facilitate insertion of such cassette into and subsequent removal of such cassette from said apparatus; means for driving such advancing means of such cassette, said driving means mounted within said housing for displacement between a first position in engagement with such advancing means of such cassette when the latter is positioned within said apparatus and a second position spaced from such advancing means; a closure member displaceably mounted on said housing for movement between a first position wherein it blocks said housing opening and a second position wherein it does not block said housing opening; and means responsive to movement of said closure member for displacing said driving means between its said first and second positions when said closure member is displaced between its said first and second positions.
Claim 13
Dependent Claim 30 words
The apparatus of claim 9 including means for substantially excluding light from entering said housing opening in the vicinity of said closure member when it is in its closed position.
Claim 14
Dependent Claim 41 words
The apparatus of claim 9 additionally including sealing means configured for engagement between the periphery of said closure member and said housing when said closure member is in its closed position so as to exclude light from entering said housing opening.
Claim 15
Dependent Claim 80 words
The apparatus of claim 9 additionally including means for receiving such cassette when said closure member is located in its said sEcond position and for positioning such cassette in an operative location when said closure member is located in its said first position, and means for coupling said receiving means to said closure member for displacement of said receiving means between its said second and first positions when said closure member is displaced between its said first and second positions.
Claim 16
Dependent Claim 82 words
The apparatus of claim 12 wherein said coupling means additionally includes lost motion means for precluding movement of said receiving means from its said second position during initial displacement of said closure member from its said first position, and said means for displacing said driving means is responsive to said initial movement of said closure member such that said driving means is displaced to its said second position spaced from such cassette, prior to displacement of the latter from its operative location.
Claim 17
Dependent Claim 52 words
The apparatus of claim 13 additionally including means for biasing said receiving means away from said closure member and towards the interior of said housing such that said receiving means positions such cassette within said housing in said operative location prior to final movement of said closure member to its first position.
Claim 18
Dependent Claim 124 words
The apparatus of claim 13 wherein said closure member is a door pivotally mounted on said housing, for displacement between an open position adjoining said housing opening and a closed position thereacross, said receiving means includes a guide member configured to slideably receive such cassette at an open end of said guide member, and said coupling means including a lost motion member joining said guide member to the underside of said door such that said guide member is at least partially drawn from said housing opening when said door is in its said open position, is carried within said opening when said door is moved to its said closed position, and remains fixedly positioned within said opening during subsequent initial opening of said door.
Claim 19
Dependent Claim 250 words
Photographic apparatus for use with a motion picture film cassette having an opening therein and means for advancing a film strip housed within such cassette past such opening, said apparatus comprising: a housing having an opening configured to facilitate insertion of such cassette into and subsequent removal of such cassette from said apparatus; first means for driving such film advancing means of such cassette, said driving means mounted within said housing for displacement between a first position in engagement with such advancing means when such cassette is positioned within said apparatus and a second position spaced from such advancing means; second means for receiving such cassette when said second means is in a first position and for positioning such cassette in an operative location within said housing when said second means is in a second position; third means for displacing said second means between its said first and second positions, said third means displaceably mounted on said housing for movement between a first and second position; fourth means responsive to movement of said third means for displacing said driving means between its said first and second positions when said third means is displaced to or from its said first position; fifth means for providing lost motion coupling between said second and third means such that said second means remains in its second position during initial movement of said third means from its second position such that such cassette is maintained in its operative position during displacement of said driving means.
Claim 20
Dependent Claim 250 words
Photographic apparatus for use with a motion picture film cassette having an opening therein and means for advancing a film strip housed within such cassette past such opening, said apparatus comprising: a housing having an opening configured to facilitate insertion of such cassette into and subsequent removal of such cassette from said apparatus; first means for driving such film advancing means of such cassette, said driving means mounted within said housing for displacement between a first position in engagement with such advancing means when such cassette is positioned within said apparatus and a second position spaced from such advancing means; second means for receiving such cassette when said second means is in a first position and for positioning such cassette in an operative location within said housing when said second means is in a second position; third means for displacing said second means between its said first and second positions, said third means displaceably mounted on said housing for movement between a first and second position; fourth means responsive to movement of said third means for displacing said driving means between its said first and second positions when said third means is displaced to or from its said first position; fifth means for providing lost motion coupling between said second and third means such that said second means remains in its second position during initial movement of said third means from its second position such that such cassette is maintained in its operative position during displacement of said driving means.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-05-28 1976-11-27 1977-05-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-05-28 1980-11-27 1981-05-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-05-28 1984-11-27 1985-05-29 $7700.00 Window Closed / Lapsed

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