US3893880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing apparatus actuating photographic film
Assignee: Polaroid Corp
•
Filing: 1973-10-04
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Granted: 1975-07-08
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Expires: 1993-10-04
Abstract
Abstract A photographic film cassette having a normally inoperative applicator system configured for depositing a developing fluid on the exposed film emulsion responsive to transport of the film in a predetermined arrangement includes a rigid actuating member carried on the film and configured for displacing a supporting pad into an operative position in supporting engagement with the film during application of the processing fluid. Preferably, the actuating member is a staple-like element affixed in clamping engagement to the film and having a portion extending obliquely therefrom so as to form an inclined arm configured to engage the pad member during appropriate advance of the film. In an alternate embodiment a rigid, conically shaped protuberance is formed in the film.
Inventors
- 👤 Gerald H Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:47
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/26; G03B17/265; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1026; Y10T156/1052; Y10T156/1054; Y10T156/1056; Y10T156/1057
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
142 words
A METHOD OF MANUFACTURING A PHOTOGRAPHIC STRIP HAVING A PROTUBERANCE EXTENDING FROM A GIVEN SIDE THEREOF, SAID PROTUBERANCE BEING CONFIGURED FOR ACTUATING AN OPERATIONAL ELEMENT OF A PHOTOGRAPHIC SYSTEM DURING ADVANCEMENT OF THE FILM STRIP THEREIN, SAID METHOD COMPRISING THE STEPS OF: POSITIONING A SEGMENT OF MATERIAL OVER A SELECTED PORTION OF SAID FILM STRIP WHEREIN SAID PROTUBERANCE IS TO BE LOCATED, SAID SEGMENT HAVING AN AREA EXCEEDING THE PERIMETER OF SAID PROTUBERANCE AND ADAPTED FOR BONDING TO SAID FILM STRIP, FORMING A SHORT TRANSVERSE CUT THROUGH BOTH SAID SEGMENT AND SAID FILM STRIP, SAID CUT HAVING A LENGTH SHORTER THAN THE WIDTH OF SAID SEGMENT AND SAID FILM STRIP, AND PRESSING SAID SEGMENT TO BOND IT WITH SAID STRIP WHILE SIMULTANEOUSLY FORMING A DEPRESSION BORDERING ON SAID CUT IN BOTH SAID SEGMENT AND SAID FILM STRIP TO THEREBY FORM SAID PROTUBERANCE.
Claim 2
Independent Claim
142 words
A METHOD OF MANUFACTURING A PHOTOGRAPHIC STRIP HAVING A PROTUBERANCE EXTENDING FROM A GIVEN SIDE THEREOF, SAID PROTUBERANCE BEING CONFIGURED FOR ACTUATING AN OPERATIONAL ELEMENT OF A PHOTOGRAPHIC SYSTEM DURING ADVANCEMENT OF THE FILM STRIP THEREIN, SAID METHOD COMPRISING THE STEPS OF: POSITIONING A SEGMENT OF MATERIAL OVER A SELECTED PORTION OF SAID FILM STRIP WHEREIN SAID PROTUBERANCE IS TO BE LOCATED, SAID SEGMENT HAVING AN AREA EXCEEDING THE PERIMETER OF SAID PROTUBERANCE AND ADAPTED FOR BONDING TO SAID FILM STRIP, FORMING A SHORT TRANSVERSE CUT THROUGH BOTH SAID SEGMENT AND SAID FILM STRIP, SAID CUT HAVING A LENGTH SHORTER THAN THE WIDTH OF SAID SEGMENT AND SAID FILM STRIP, AND PRESSING SAID SEGMENT TO BOND IT WITH SAID STRIP WHILE SIMULTANEOUSLY FORMING A DEPRESSION BORDERING ON SAID CUT IN BOTH SAID SEGMENT AND SAID FILM STRIP TO THEREBY FORM SAID PROTUBERANCE.
Claim 3
Dependent Claim
30 words
The method of claim 1 wherein said segment is of heat sealable material and said method includes the step of heating said segment during said step of pressing said protuberance.
Claim 4
Dependent Claim
54 words
The method of claim 1 wherein said positioning step includes positioning said segment on the side of said film strip opposite said given side, and said pressing step includes pressing a portion of said segment within said depression and bordering said cut to at least slightly beyond the given side of said film strip.
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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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |