US3880373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film reel with a cordal connection slot
Assignee: Polaroid Corp
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Filing: 1974-02-08
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Granted: 1975-04-29
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Expires: 1994-02-08
Abstract
Abstract A film loading apparatus for use with a film reel having a chordally arranged slot for connecting the film reel with the end of a strip of film. The slot contains a barb which cooperates with an aperature formed at the end of the film strip. Once the film strip end is placed within the slot, and the barb engages the film strip aperture, accidental separation of the film end from the slot is obviated.
Inventors
- 👤 Gerald H Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:41
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321; G03B21/326
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
203 words
An automatic film loading apparatus for use in conjunction with a film reel having a slot into which one end of a film strip is inserted and means for retaining such one end of such film strip in such slot, said apparatus comprising: means for rotating such film reel about its axis; means located on such film reel in a predetermined angular relationship with such slot; means, engageable with said angularly located means, for stopping the rotation of such film reel when engagement is made for correctly positioning such film reel; means, responsive to said engagement, for feeding film to such film reel when said angularly located means has been engaged and such film reel has been correctly positioned; means for introducing one end of such film strip into such slot within such film reel; means for feeding such one end of such film strip into such slot until such one end is retained by such retaining means in such slot; means for rotating such film reel for winding a predetermined amount of unexposed film on such film reel; and means for severing the remaining end off such film strip when said predetermined amount of film has been wound upon such film reel.
Claim 2
Dependent Claim
203 words
An automatic film loading apparatus for use in conjunction with a film reel having a slot into which one end of a film strip is inserted and means for retaining such one end of such film strip in such slot, said apparatus comprising: means for rotating such film reel about its axis; means located on such film reel in a predetermined angular relationship with such slot; means, engageable with said angularly located means, for stopping the rotation of such film reel when engagement is made for correctly positioning such film reel; means, responsive to said engagement, for feeding film to such film reel when said angularly located means has been engaged and such film reel has been correctly positioned; means for introducing one end of such film strip into such slot within such film reel; means for feeding such one end of such film strip into such slot until such one end is retained by such retaining means in such slot; means for rotating such film reel for winding a predetermined amount of unexposed film on such film reel; and means for severing the remaining end off such film strip when said predetermined amount of film has been wound upon such film reel.
Claim 3
Dependent Claim
157 words
An automatic film loading apparatus for use in conjunction with a film reel including a film end connection element configured for capturing one end of a film strip when such one end of such film strip is engaged therewith, said apparatus comprising: means for rotating such film reel about its axis; means located on such film reel and spaced from such film end connection element in a predetermined angular relationship about such axis; means for cooperating with said angularly located means to stop rotation of such film reel so as to locate such film end connection element in a predetermined position; and means, responsive to the location of such film end connection element in said predetermined position, for feeding such one end of such film strip to such film reel along a given path into engagement with such film end connection element so that such one end of such film strip is captured by such connection element.
Claim 4
Dependent Claim
157 words
An automatic film loading apparatus for use in conjunction with a film reel including a film end connection element configured for capturing one end of a film strip when such one end of such film strip is engaged therewith, said apparatus comprising: means for rotating such film reel about its axis; means located on such film reel and spaced from such film end connection element in a predetermined angular relationship about such axis; means for cooperating with said angularly located means to stop rotation of such film reel so as to locate such film end connection element in a predetermined position; and means, responsive to the location of such film end connection element in said predetermined position, for feeding such one end of such film strip to such film reel along a given path into engagement with such film end connection element so that such one end of such film strip is captured by such connection element.
Claim 5
Dependent Claim
69 words
The automatic film loading apparatus of claim 3 in which said apparatus further includes: means for rotating such film reel for winding a predetermined amount of unexposed film of such film reel following such engagement of such one end of such film with such element; and means for severing the remaining end off such film strip when a predetermined amount of film has been wound upon such film reel.
Claim 6
Dependent Claim
60 words
The automatic film loading apparatus of claim 2 in which such angularly located means is a physical discontinuity, said means for cooperating with such angularly located means is configured to engage said physical discontinuity for stopping the rotation of such film reel and positioning such film reel so that such film end connection element is positioned in said given path.
Claim 7
Dependent Claim
63 words
The automatic film loading apparatus of claim 2 in which such film end connection element includes a chordally arranged slot having means located therein for retaining such one end of such film strip in such slot, said means for cooperating with said angularly located means includes means for positioning such film reel such that such slot is substantially aligned with said given path.
Claim 8
Dependent Claim
83 words
The automatic film loading apparatus of claim 2 in which such film end connection element includes a chordally arranged slot having a barb located therein and such one end of such film strip includes an aperture formed therein, such aperture being engageable by such barb for retaining such one end of such film strip in such slot, said feeding means feeding such one end of such film strip into such slot Until such aperture in such one end is captured by such barb.
Claim 9
Dependent Claim
141 words
The automatic film loading apparatus of claim 2 in which such film end connection element includes a chordally arranged slot having a barb located therein and such one end of such film strip includes an aperture formed therein, such aperture being engageable by such barb for retaining such one end of such film strip in such slot, such barb being positioned within such slot so as to prevent the removal of such film strip from such slot in a direction opposite that which such one end of such film strip is fed to such film reel, and said means for rotating such film reel includes means for winding a predetermined amount of unexposed film upon such film reel in a direction about its axis codirectional with the direction such one end of such film strip is fed to such film reel.
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |