US3756714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pinch roller assembly
Assignee: Vantiva SA
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Filing: 1971-05-14
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Granted: 1973-09-04
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Expires: 1991-05-14
Abstract
Abstract There is disclosed herein a capstan and pinch roller assembly for use in moving material in strip form, such as for moving motion picture film in a cartridge-loaded motion picture projector. The pinch roller is pivotally mounted and normally remains in a rest position for allowing entry of a film cartridge or the like into the machine. Insertion of the cartridge into the machine engages a member of the pinch roller assembly to move the roller into a second position, from which it is then moved to a final, capstan-engaging, position by means of an electromagnet. The electromagnet thus serves to finally position the roller, and to properly bias the pinch roller against the capstan. A suitable sound pick-up, such as an optical or magnetic pick-up, also may be positioned by movement of the pinch roller assembly. This invention relates to apparatus for moving webs of strips of material and more particularly to an improved pivotally mounted pinch roller assembly for use with cartridge loaded motion picture projectors and the like.
Inventors
- 👤 G Caraway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:47
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321; G03B21/323; G11; G11B; G11B15/00; G11B15/02; G11B15/10; G11B15/16; G11B15/18; G11B15/26; G11B15/28; G11B15/29
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
160 words
A pinch roller and capstan assembly for use in moving a web of material such as sound motion picture film in a cartridge loaded motion picture projector comprising mounting means, a rotatable capstan mounted on said mounting means, pinch roller means including a pinch roller, said pinch roller means including a body, said pinch roller being rotatably mounted on said body and said body being pivotally mounted on said mounting means for allowing pivotal movement of said pinch roller toward said capstan for engaging and moving said film, the pivot axis of said pinch roller means being transverse to the axis of said capstan, and said pinch roller means including an armature coupled with said body, electromagnetic means mounted between said mounting means and said armature for attracting said armature and holding said pinch roller toward said capstan, and said body for said pinch roller means including a sound pick-up mounted thereon and pivotally movable therewith for engaging said film.
Claim 2
Dependent Claim
160 words
A pinch roller and capstan assembly for use in moving a web of material such as sound motion picture film in a cartridge loaded motion picture projector comprising mounting means, a rotatable capstan mounted on said mounting means, pinch roller means including a pinch roller, said pinch roller means including a body, said pinch roller being rotatably mounted on said body and said body being pivotally mounted on said mounting means for allowing pivotal movement of said pinch roller toward said capstan for engaging and moving said film, the pivot axis of said pinch roller means being transverse to the axis of said capstan, and said pinch roller means including an armature coupled with said body, electromagnetic means mounted between said mounting means and said armature for attracting said armature and holding said pinch roller toward said capstan, and said body for said pinch roller means including a sound pick-up mounted thereon and pivotally movable therewith for engaging said film.
Claim 3
Dependent Claim
171 words
A pinch roller and capstan assembly for use in moving a web of material such as for moving film in a cartridge loaded motion picture projector comprising mounting means, a rotatable capstan mounted on said mounting means, pinch roller means including a pinch roller, said pinch roller means including a body, said pinch roller being rotatably mounted on said body and said body being pivotally mounted on said mounting means for allowing pivotal movement of said pinch roller toward said capstan for engaging and moving said web of material, the pivot axis of said pinch roller means being transverse to the axis of said capstan, and said pinch roller means including an armature coupled with said body, electromagnetic means mounted between said mounting means and said armature for attracting said armature and holding said pinch roller toward said capstan, and said web of material has stored therein sound information, and said body for said pinch roller means includes a sound pick-up mounted thereon and pivotally movable therewith for engaging said material.
Claim 4
Dependent Claim
171 words
A pinch roller and capstan assembly for use in moving a web of material such as for moving film in a cartridge loaded motion picture projector comprising mounting means, a rotatable capstan mounted on said mounting means, pinch roller means including a pinch roller, said pinch roller means including a body, said pinch roller being rotatably mounted on said body and said body being pivotally mounted on said mounting means for allowing pivotal movement of said pinch roller toward said capstan for engaging and moving said web of material, the pivot axis of said pinch roller means being transverse to the axis of said capstan, and said pinch roller means including an armature coupled with said body, electromagnetic means mounted between said mounting means and said armature for attracting said armature and holding said pinch roller toward said capstan, and said web of material has stored therein sound information, and said body for said pinch roller means includes a sound pick-up mounted thereon and pivotally movable therewith for engaging said material.
Claim 5
Dependent Claim
161 words
A pinch roller and capstan assembly for use in moving a web of material such as sound motion picture film in a cartridge loaded motion picture projector comprising mounting means, a rotatable capstan mounted on said mounting means, pinch roller means including a pinch roller, said pinch roller means including a body, said pinch roller being rotatably mounted on said body and said body being pivotally mounted on said mounting means for allowing pivotal movement of said pinch roller toward said capstan for engaging and moving said film, the pivot axis of said pinch roller means being transverse to the axiS of said capstan, and said pinch roller means including an armature coupled with said body, electromagnetic means mounted between said mounting means and said armature for attracting said armature and holding said pinch roller toward said capstan, and said body for said pinch roller means including a sound pick-up moutned thereon and pivotally movable therewith for placement adjacent said film.
Claim 6
Dependent Claim
161 words
A pinch roller and capstan assembly for use in moving a web of material such as sound motion picture film in a cartridge loaded motion picture projector comprising mounting means, a rotatable capstan mounted on said mounting means, pinch roller means including a pinch roller, said pinch roller means including a body, said pinch roller being rotatably mounted on said body and said body being pivotally mounted on said mounting means for allowing pivotal movement of said pinch roller toward said capstan for engaging and moving said film, the pivot axis of said pinch roller means being transverse to the axiS of said capstan, and said pinch roller means including an armature coupled with said body, electromagnetic means mounted between said mounting means and said armature for attracting said armature and holding said pinch roller toward said capstan, and said body for said pinch roller means including a sound pick-up moutned thereon and pivotally movable therewith for placement adjacent said film.
Claim 7
Dependent Claim
172 words
A pinch roller and capstan assembly for use in moving a web of material such as for moving film in a cartridge loaded motion picture projector comprising mounting means, a rotatable capstan mounted on said mounting means, pinch roller means including a pinch roller, said pinch roller means including a body, said pinch roller being rotatably mounted on said body and said body being pivotally mounted on said mounting means for allowing pivotal movement of said pinch roller toward said capstan for engaging and moving said web of material, the pivota axis of said pinch roller means being transverse to the axis of said capstan, and said pinch roller means including an armature coupled with said body, electromagnetic means mounted between said mounting means and said armature for attracting said armature and holding said pinch roller toward said capstan, and said web of material has stored therein sound information, and said body for said pinch roller means includes a sound pick-up mounted thereon and pivotally movable therewith for placement adjacent said material.
Claim 8
Dependent Claim
172 words
A pinch roller and capstan assembly for use in moving a web of material such as for moving film in a cartridge loaded motion picture projector comprising mounting means, a rotatable capstan mounted on said mounting means, pinch roller means including a pinch roller, said pinch roller means including a body, said pinch roller being rotatably mounted on said body and said body being pivotally mounted on said mounting means for allowing pivotal movement of said pinch roller toward said capstan for engaging and moving said web of material, the pivota axis of said pinch roller means being transverse to the axis of said capstan, and said pinch roller means including an armature coupled with said body, electromagnetic means mounted between said mounting means and said armature for attracting said armature and holding said pinch roller toward said capstan, and said web of material has stored therein sound information, and said body for said pinch roller means includes a sound pick-up mounted thereon and pivotally movable therewith for placement adjacent said material.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |