US3597058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge type motion picture projector
Assignee: Individual
•
Filing: 1968-01-22
•
Granted: 1971-08-03
•
Expires: 1988-01-22
Abstract
Abstract A cartridge type motion picture projector having a lens system, light source and drive motor as part of the projector housing. A cartridge containing the film and film drive mechanism is held to the projector housing with the light source in alignment with the film and the film gate aperture of the cartridge and the output shaft of the drive motor engaging the film drive mechanism of the cartridge. The film drive mechanism is of a simplified form including a pointed member which is shaped and driven to provide both reciprocating motion and a frame-by-frame advancement of the film. The lens system includes a light diffusing member which drops into position in the optical path when the projection is inverted so that it can function as a previewer.
Inventors
- 👤 Joseph T Nicosia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:53
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321; G03B21/323
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
132 words
A cartridge type film projector comprising in combination a projector portion and a cartridge portion, said projector portion having a light source, a lens and a drive motor with an output shaft mounted thereon, said cartridge portion comprising means for holding film, and means within said cartridge portion engageable with and driven by said motor output shaft of said projector portion for both transporting the film from said holding means and advancing said film, said projector portion further comprising light diffusing means for location in the light output path of said light source, said light diffusing means comprising a vane of translucent material pivotally mounted to the projector wall at a point between said light source and said lens for movement by gravity into the projection path when the projector is inverted.
Claim 2
Dependent Claim
132 words
A cartridge type film projector comprising in combination a projector portion and a cartridge portion, said projector portion having a light source, a lens and a drive motor with an output shaft mounted thereon, said cartridge portion comprising means for holding film, and means within said cartridge portion engageable with and driven by said motor output shaft of said projector portion for both transporting the film from said holding means and advancing said film, said projector portion further comprising light diffusing means for location in the light output path of said light source, said light diffusing means comprising a vane of translucent material pivotally mounted to the projector wall at a point between said light source and said lens for movement by gravity into the projection path when the projector is inverted.
Claim 3
Dependent Claim
42 words
The film projector of claim 1 wherein said film advance mechanism in said cartridge comprises a claw, and means for moving said claw toward the film to engage the film adjacent a sprocket hole and advance it a frame at a time.
Claim 4
Dependent Claim
22 words
The film projector of claim 2 wherein said moving means also retracts the claw from the film after it has been advanced.
Claim 5
Dependent Claim
42 words
The film projector of claim 3 wherein said moving means comprises a drive disc having means thereon for engaging the motor output shaft to be driven thereby and a pin eccentrically mounted on said disc for engaging and moving the drive claw.
Claim 6
Dependent Claim
22 words
The film projector of claim 2 wherein said claw is formed with a pointed end for insertion into the film sprocket holes.
Claim 7
Dependent Claim
34 words
The film projector of claim 5 wherein said cartridge is formed with a slot in one of its walls into which said end of said claw extends to limit the movement of the claw.
Claim 8
Dependent Claim
39 words
The film projector of claim 2 wherein said film cartridge further comprises a film gate, means for holding said film in said film gate, and means for aligning the light source of the projector portion with said film gate.
Claim 9
Dependent Claim
22 words
The film projector of claim 4 wherein said claw is formed with a pointed end for insertion into the film sprocket holes.
Claim 10
Dependent Claim
22 words
The film projector of claim 1 for use as a previewer further comprising means for inverting the image produced by the projector.
Claim 11
Dependent Claim
118 words
The film projector of claim 1 wherein said projector portion includes a housing, an enclosure on said housing in which said light source is located, said enclosure having an opening through which the light from the light source exits, said cartridge portion also including a housing having a first opening in a wall thereof of generally complementary shape to said enclosure of said projector portion housing, said enclosure of said projector portion fitting within said first opening oF said cartridge housing, said cartridge housing also having a second opening adjacent which the film hovels, said second opening aligned with respect to said opening of said enclosure of said projector portion to receive the light from the projector portion.
Claim 12
Dependent Claim
31 words
The film projector of claim 10 wherein said projector portion housing also has a third opening in line with said second opening through which the image from the film is projected.
Claim 13
Dependent Claim
29 words
The projector of claim 10 wherein said output shaft of said projector portion extends from the same side of the housing as the said enclosure containing the light source.
References Cited (Backward Citations)
US1510470A
Cited
US1953986A
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US1957378A
Cited
US2211218A
Cited
US2427585A
Cited
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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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |