US3679298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette-type microfilm reader
Assignee: Eastman Kodak Co
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Filing: 1970-02-03
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Granted: 1972-07-25
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Expires: 1990-02-03
Abstract
Abstract Apparatus for projecting images from an information bearing medium such as filmstrip extending between supply and takeup members in a cassette. The apparatus includes a carriage assembly for receiving the cassette in a first position and for moving the cassette to a second position in which the filmstrip is aligned for projection and in which a two-way drive mechanism is engaged to the cassette supply and take-up members. Also, during movement to the second position, a focusing control mounted on the carriage assembly is coupled with a projection lens focusing device in the reader projection system. The projection apparatus further includes a relatively stationary film gate for supporting the filmstrip in a predetermined projection plane, and the cassette containing the filmstrip is adapted to envelop the film gate as the cassette is inserted into the projection apparatus by the carriage assembly.
Inventors
- 👤 Frederick G Knowles
- 👤 Clarence R Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:12
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/10; G03B21/11; G03B21/111
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
353 words
In projection apparatus for receiving a cassette having a housing defining two spaced chambers and a passageway extending between and in communication with said chambers, rotatable supply and takeup members respectively disposed in said chambers and a strip of information bearing medium extending between said rotatable members through said passageway, said housing having a projection aperture in communication with said passageway, the combination comprising: projection means, a gate comprising a pair of spaced members in alignment with said projection means along a projection axis, a movably mounted carriage assembly adapted to receive and support a cassette and to move it into and out of said projection axis, drive means mounted on said carriage assembly for driving the rotatable supply and take up members of said cassette, said carriage assembly being movable between, a first position wherein said cassette may be received by said carriage assembly, and wherein said drive means are operably disengaged from said rotatable members of said cassette; and a second position wherein said projection aperture in said cassette housing are in alignment with said projection axis and said members of said gate envelop said cassette housing in the region of said cassette projection aperture, and wherein said drive means are engaged with said cassette supply and takeup members and are operable to drive said members, and wherein said carriage assembly includes base plate means, said drive means being mounted on said base plate means and further includes bracket means slidably mounted on said base plate means and adapted to support said cassette whereby when said carriage assembly is in the first positiOn said bracket means are in a third position relative to said base plate means wherein said bracket means are adapted to receive said cassette and said drive means on said base plate means are disengaged from said rotatable members of said cassette and whereby when said carriage assembly is moved to the second position, said bracket means are moved relative to said base plate means to a fourth position wherein said drive means on said base plate means are drivingly engaged with said rotatable members of said cassette.
Claim 2
Dependent Claim
353 words
In projection apparatus for receiving a cassette having a housing defining two spaced chambers and a passageway extending between and in communication with said chambers, rotatable supply and takeup members respectively disposed in said chambers and a strip of information bearing medium extending between said rotatable members through said passageway, said housing having a projection aperture in communication with said passageway, the combination comprising: projection means, a gate comprising a pair of spaced members in alignment with said projection means along a projection axis, a movably mounted carriage assembly adapted to receive and support a cassette and to move it into and out of said projection axis, drive means mounted on said carriage assembly for driving the rotatable supply and take up members of said cassette, said carriage assembly being movable between, a first position wherein said cassette may be received by said carriage assembly, and wherein said drive means are operably disengaged from said rotatable members of said cassette; and a second position wherein said projection aperture in said cassette housing are in alignment with said projection axis and said members of said gate envelop said cassette housing in the region of said cassette projection aperture, and wherein said drive means are engaged with said cassette supply and takeup members and are operable to drive said members, and wherein said carriage assembly includes base plate means, said drive means being mounted on said base plate means and further includes bracket means slidably mounted on said base plate means and adapted to support said cassette whereby when said carriage assembly is in the first positiOn said bracket means are in a third position relative to said base plate means wherein said bracket means are adapted to receive said cassette and said drive means on said base plate means are disengaged from said rotatable members of said cassette and whereby when said carriage assembly is moved to the second position, said bracket means are moved relative to said base plate means to a fourth position wherein said drive means on said base plate means are drivingly engaged with said rotatable members of said cassette.
Claim 3
Dependent Claim
22 words
The combination of claim 1 wherein said members of said gate are transparent at least in the region of said projection axis.
Claim 4
Dependent Claim
12 words
The combination of claim 1 wherein said carriage assembly is slidably mounted.
Claim 5
Dependent Claim
104 words
The combination of claim 1 wherein said drive means include a drive member rotatable in first and second opposite directions, first and second rotatable driven members, means for operatively coupling said drive member to said first driven member when said drive member is rotated in said first direction, means for operatively coupling said drive member to said second driven member when said drive member is rotated in said second direction, said first and said second driven members each having portions which respectively operatively engage said supply and said take up members of said cassette when said carriage assembly is moved to said second position.
Claim 6
Dependent Claim
208 words
In projection apparatus for receiving a cassette having a housing defining two spaced chambers and a passageway extending between and in communication with said chambers, rotatable supply and takeup members respectively disposed in said chambers and a strip of information bearing medium extending between said rotatable members through said passageway, the combination comprising: focusable projection means disposed along a projection axis, a movably mounted carriage assembly adapted to receive and support a cassette and to move it into and out of said projection axis, drive means mounted on said carriage assembly for driving the rotatable supply and takeup member of said cassette, means for focusing said focusable projection means, said focusing means being mounted on said carriage assembly, said carriage assembly being movable between: a first position wherein said cassette may be received by said carriage assembly, wherein said drive means are operably disengaged from said rotatable members of said cassette and wherein said focusing means are operably disengaged from said focusable projection means and, a second position wherein said drive means are engaged with said cassette supply and takeup members and are operable to drive said members and wherein said focusing means are engaged with said focusable projection means and are operable to focus said projection means.
Claim 7
Dependent Claim
208 words
In projection apparatus for receiving a cassette having a housing defining two spaced chambers and a passageway extending between and in communication with said chambers, rotatable supply and takeup members respectively disposed in said chambers and a strip of information bearing medium extending between said rotatable members through said passageway, the combination comprising: focusable projection means disposed along a projection axis, a movably mounted carriage assembly adapted to receive and support a cassette and to move it into and out of said projection axis, drive means mounted on said carriage assembly for driving the rotatable supply and takeup member of said cassette, means for focusing said focusable projection means, said focusing means being mounted on said carriage assembly, said carriage assembly being movable between: a first position wherein said cassette may be received by said carriage assembly, wherein said drive means are operably disengaged from said rotatable members of said cassette and wherein said focusing means are operably disengaged from said focusable projection means and, a second position wherein said drive means are engaged with said cassette supply and takeup members and are operable to drive said members and wherein said focusing means are engaged with said focusable projection means and are operable to focus said projection means.
Claim 8
Dependent Claim
52 words
The combination of claim 5 wherein said focusable projection means include a projection lens slidably mounted within a cylindrical housing and wherein said focusing means include a member mounted on said carriage assembly and detachably engageable with said projection lens to slide said lens within said cylindrical housing to focus said lens.
Claim 9
Dependent Claim
143 words
The combination of claim 5 wherein said carriage assembly includes base plate means, said drive means and said focusing means being mounted on said base plates means and further includes bracket means slidably mounted on said base plate means and adapted to support said cassette whereby when said carriage assembly is in the first position said bracket means are in a third position relative to said base plate means wherein said bracket means are adapted to receive said cassette and said drive means on said base plate means are disengaged from said rotatable members of said cassette and whereby when said carriage assembly is moved to the second position, said bracket means are moved relative to said base plate means to a fourth position wherein said drive means on said base plate means are drivingly engaged with said rotatable members of sAid cassette.
Claim 10
Dependent Claim
103 words
The combination of claim 5 wherein said drive means include a drive member rotatable in first and second opposite directions, first and second rotatable driven members, means for operatively coupling said drive member to said first driven member when said drive member is rotated in said first direction, means for operatively coupling said drive member to said second driven member when said drive member is rotated in said second direction, said first and said second driven members each having portions which respectively operatively engage said supply and said takeup members of said cassette when said carriage assembly is moved to said second position.
Claim 11
Dependent Claim
264 words
In projection apparatus for receiving a cassette having a housing defining two spaced chambers and a passageway extending between and in communication with said chambers, rotatable supply and takeup members respectively disposed in said chambers and a strip of information bearing medium extending between said rotatable members through said passageway, said housing having a projection aperture in communication with said passageway, the combination comprising: focusable projection means, a gate comprising a pair of spaced members in alignment with said projection means along a projection axis, a movably mounted carriage assembly adapted to receive and support a cassette and to move it into and out of said projection axis, drive means mounted on said carriage assembly for driving the rotatable supply and takeup member of said cassette, means for focusing said focusable projection means, said focusing means being mounted on said carriage assembly, said carriage assembly being movable between: a first position wherein said cassette may be received by said carriage assembly, wherein said drive means are operably disengaged from said rotatable members of said cassette and wherein said focusing means are operably disengaged from said focusable projection means, and a second position wherein said projection aperture in said cassette housing is in alignment with said projection axis and said members of said gate envelop said cassette housing in the region of said cassette projection aperture, wherein said drive means are engaged with said cassette supply and takeup members are operable to drive said members and wherein said focusing means are engaged with said focusable projection means and are operable to focus said projection means.
Claim 12
Dependent Claim
264 words
In projection apparatus for receiving a cassette having a housing defining two spaced chambers and a passageway extending between and in communication with said chambers, rotatable supply and takeup members respectively disposed in said chambers and a strip of information bearing medium extending between said rotatable members through said passageway, said housing having a projection aperture in communication with said passageway, the combination comprising: focusable projection means, a gate comprising a pair of spaced members in alignment with said projection means along a projection axis, a movably mounted carriage assembly adapted to receive and support a cassette and to move it into and out of said projection axis, drive means mounted on said carriage assembly for driving the rotatable supply and takeup member of said cassette, means for focusing said focusable projection means, said focusing means being mounted on said carriage assembly, said carriage assembly being movable between: a first position wherein said cassette may be received by said carriage assembly, wherein said drive means are operably disengaged from said rotatable members of said cassette and wherein said focusing means are operably disengaged from said focusable projection means, and a second position wherein said projection aperture in said cassette housing is in alignment with said projection axis and said members of said gate envelop said cassette housing in the region of said cassette projection aperture, wherein said drive means are engaged with said cassette supply and takeup members are operable to drive said members and wherein said focusing means are engaged with said focusable projection means and are operable to focus said projection means.
Claim 13
Dependent Claim
52 words
The combination of claim 9 wherein said focusable projection means include a projection lens slidably mounted within a cylindrical housing and wherein said focusing means include a member mounted on said carriage assembly and detachably engageable with said projection lens to slide said lens within said cylindrical housing to focus said lens.
Claim 14
Dependent Claim
22 words
The combination of claim 9 wherein said members of said gate are transparent at least in the region of said projection axis.
Claim 15
Dependent Claim
143 words
The combination of claim 9 wherein said carriage assembly includes base plate means, said drive means and said focusing means being mounted on said base plates means and further includes bracket means slidably mounted on said base plate means and adapted to support said cassette whereby when said carriage assembly is in the first position said bracket means are in a third position relative to said base plate means wherein said bracket means are adapted to receive said cassette and said drive means on said base plate means are disengaged from said rotatable members of said cassette and whereby when said carriage assembly is moved to the second position, said bracket means are moved relative to said base plate means to a fourth position wherein said drive means on said base plate means are drivingly engaged with said rotatable members of said cassette.
Claim 16
Dependent Claim
105 words
The combination of claim 9 wherein said drive means include a drive member rotatable in first and second opposite directions, first and second rotatable driven members, means for operativeLy coupling said drive member to said first driven member when said drive member is rotated in said first direction, drive means for operatively coupling said drive member to said second driven member when said drive member is rotated in said second direction, said first and said second driven members each having portions which respectively operatively engage said supply and said take up members of said cassette when said carriage assembly is moved to said second position.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |