US3829035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulk film loading device
Assignee: Individual
•
Filing: 1972-11-09
•
Granted: 1974-08-13
•
Expires: 1992-11-09
Abstract
Abstract A device for loading bulk film on a cassette having a first film holding chamber and a second cassette holding chamber. Film passes through a slot in a wall between the chambers. A drum member is mounted in the first chamber. The drum member includes a wall provided with an opening therein. The wall of the drum turns inside of and adjacent the wall of the first chamber between a first position in which the opening and the slot are aligned and a second position in which the drum wall closes the slot. A door closes the second chamber. A disc is mounted on the door and is engageable with the drum. A socket in the drum is opposed to the disc when the drum is in slot closed position. A portion of the disc advances into the socket when the door is open to lock the drum against turning when the door is open. When the door is closed, the drum enters a cut away portion of the disc when the drum is turned to slot open position to lock the door against opening when the drum is in slot open position.
Inventors
- 👤 N Backscheider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:04
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30; G03B2217/00; G03B2217/26; G03B2217/265; Y; Y10; Y10S; Y10S242/00; Y10S242/912
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
282 words
A device for loading bulk film on a cassette which comprises a body having a first chamber and a second chamber therein, a wall in the body separating the chambers, there being a slot in the wall for passage of film, means for mounting a roll of film in the first chamber with an end portion of the roll of film extending through the slot, a drum member mounted in the film chamber, the drum member having a wall provided with an opening therein, the wall of the drum turning inside of and adjacent the wall of the body member between a first position in which the opening and the slot are aligned and a second position in which the drum wall closes the slot, a door for closing the second chamber, the door having a hinge pin portion rotatably mounted adjacent the drum, a disc mounted on the hinge pin portion for rotation in unison with the hinge pin and door and engageable with the drum, there being a socket in the drum opposed to the disc when the drum is in slot closed position, a portion of the disc advancing into the socket when the door is open to lock the drum against turning when the door is open, the disc having a cut away portion opposed to the drum when the door is closed, the drum entering the cut away portion when the drum is turned to slot open position to lock the door against opening when the drum is in slot open position, means for mounting a cassette in the second chamber, and means for turning a spindle of the cassette to wind the film on the cassette.
Claim 2
Independent Claim
282 words
A device for loading bulk film on a cassette which comprises a body having a first chamber and a second chamber therein, a wall in the body separating the chambers, there being a slot in the wall for passage of film, means for mounting a roll of film in the first chamber with an end portion of the roll of film extending through the slot, a drum member mounted in the film chamber, the drum member having a wall provided with an opening therein, the wall of the drum turning inside of and adjacent the wall of the body member between a first position in which the opening and the slot are aligned and a second position in which the drum wall closes the slot, a door for closing the second chamber, the door having a hinge pin portion rotatably mounted adjacent the drum, a disc mounted on the hinge pin portion for rotation in unison with the hinge pin and door and engageable with the drum, there being a socket in the drum opposed to the disc when the drum is in slot closed position, a portion of the disc advancing into the socket when the door is open to lock the drum against turning when the door is open, the disc having a cut away portion opposed to the drum when the door is closed, the drum entering the cut away portion when the drum is turned to slot open position to lock the door against opening when the drum is in slot open position, means for mounting a cassette in the second chamber, and means for turning a spindle of the cassette to wind the film on the cassette.
Claim 3
Dependent Claim
39 words
A device as in claim 1 wherein the drum wall and the wall of the first chamber are adapted to hold the end portion of the film therebetween adjacent the slot when the drum is in slot closed posiTion.
Claim 4
Dependent Claim
21 words
A device as in claim 1 wherein there are film guides on the door which guide the film to the cassette.
Claim 5
Dependent Claim
46 words
A device as in claim 1 wherein the end portion of the film passes in engagement with a post, a sprocket is mounted on the post, the sprocket is engaged by the film and is turned as the film advances, and the sprocket actuates counting mechanism.
Claim 6
Dependent Claim
66 words
A device as in claim 1 wherein the wall of the first chamber has an inwardly projecting smooth curved surfaced rib extending transversely of the direction of drum wall movement, and the drum wall and the rib on the wall of the first chamber are adapted to hold the end portion of the film therebetween adjacent the slot when the drum is in slot closed position.
References Cited (Backward Citations)
US2298339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |