US3722829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette
Assignee: US Philips Corp
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Filing: 1970-12-28
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Granted: 1973-03-27
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Expires: 1990-12-28
Abstract
Abstract A cassette for use in an apparatus for the recording and/or playback of recording on or from a strip-shaped record carrier, which cassette contains a take-up core and a supply core for the record carrier and a single, flanged, freely rotatable, and displaceable, guide roller which is mounted so as to be floating and engages the outer circumferences of the record carrier rolls wound on the supply and take-up cores. The flanges of the roller simultaneously guides the outer turns of both record carrier rolls.
Inventors
- 👤 T Arnoldussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:28
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/08757
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
247 words
A film cassette for use in an apparatus for recording and/or playback of filmed images on stripped shaped film comprising a casing formed of an upper surface, a bottom surface, two opposing and parallel side walls and two opposing and parallel end walls, said side and end walls interconnecting said said upper and lower surfaces, a supply core and a take-up core housed within said cassette between said upper and lower surfaces and being laterally spaced apart, a film being wound in rollers and carried by said cores and being guided within said casing from one core to the other and past one of the side walls of the casing, a flanged guide roller rotatably mounted on a roller support within said casing and arranged for displacement within the casing, said guide roller being situated so that its circumference is in contact with the outer circumference of the film rolls wound on both the take-up core and the supply core, means for biasing said roller so as to remain in contact with the outer circumference of each film roll, said flanges of the guide roller guiding the outer turns of both film rolls, said roller support comprising a U-shaped bracket arranged within the casing and extending inbetween said film rolls, and said means for biasing said guide roller comprising a drawspring having one end thereof attached to that portion of said bracket joining the limbs of said U, and the other end thereof secured to said casing.
Claim 2
Dependent Claim
247 words
A film cassette for use in an apparatus for recording and/or playback of filmed images on stripped shaped film comprising a casing formed of an upper surface, a bottom surface, two opposing and parallel side walls and two opposing and parallel end walls, said side and end walls interconnecting said said upper and lower surfaces, a supply core and a take-up core housed within said cassette between said upper and lower surfaces and being laterally spaced apart, a film being wound in rollers and carried by said cores and being guided within said casing from one core to the other and past one of the side walls of the casing, a flanged guide roller rotatably mounted on a roller support within said casing and arranged for displacement within the casing, said guide roller being situated so that its circumference is in contact with the outer circumference of the film rolls wound on both the take-up core and the supply core, means for biasing said roller so as to remain in contact with the outer circumference of each film roll, said flanges of the guide roller guiding the outer turns of both film rolls, said roller support comprising a U-shaped bracket arranged within the casing and extending inbetween said film rolls, and said means for biasing said guide roller comprising a drawspring having one end thereof attached to that portion of said bracket joining the limbs of said U, and the other end thereof secured to said casing.
Claim 3
Dependent Claim
61 words
The cassette according to claim 1 wherein said U-shaped bracket is formed of wire material, the free ends of the limbs of the U being bent inwardly so as to form a pivot on which the guide roller is rotatably mounted, and each limb being provided with an outwardly bent projection, said projections being located near the ends of the limbs.
Claim 4
Dependent Claim
91 words
The cassette according to claim 2 further comprising a recess formed on the inner face of one of the surfaces, said recess extending at right angles to the axis of rotation of the guide roller, said projections on said bracket extending into said recess so that when the support is displaced under the influence of said drawspring, the projection may abut against a boundary wall of the recess thereby preventing the guide roller from passing between the two cores under the influence of the drawspring when the cassette contains no film.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |