Patent US2582199A successfully refreshed from Google Patents.
Patent US4994828A successfully refreshed from Google Patents.
US4994828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera apparatus for preventing load of exposed film
Assignee: Eastman Kodak Co
•
Filing: 1989-11-14
•
Granted: 1991-02-19
•
Expires: 2009-11-14
Abstract
Abstract In a camera to be used with a light-tight cassette which in inherently capable of automatically advancing a filmstrip from the cassette shell whether the filmstrip is generally unexposed, partly exposed or substantially completely exposed, and which has a status indicator for providing a visible indication of the exposure status of the filmstrip, a sensing/blocking member is included to cooperate with the status indicator to prevent cassette loading into the camera in one embodiment only when the status indicator indicates that the filmstrip is completely exposed and in another embodiment either when the status indicator indicates that the filmstrip is partly exposed or it indicates that the filmstrip is completely exposed.
Inventors
- 👤 David C. Smart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:58
CPC Classifications
G; G03; G03B; G03B1/00; G03B17/00; G03B17/28; G03B17/30; G03B7/00; G03B2217/00; G03B2217/26; G03B2217/263; G03B2217/266; G03B2217/268
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
117 words
A device to be used with a film cassette having a film-exposure status indicator movable from an unexposed position for providing a visible indication that a filmstrip within the cassette is unexposed, to a partly exposed position for providing a visible indication that the filmstrip is only partly exposed, and to an exposed position for providing a visible indication that exposure of the filmstrip is completed, wherein said device is characterized in that: a loading chamber is configured to receive the film cassette; and sensing means is adapted to cooperate with the status indicator of the cassette for preventing the cassette from being inserted into said loading chamber when the status indicator is in its exposed position.
Claim 2
Independent Claim
117 words
A device to be used with a film cassette having a film-exposure status indicator movable from an unexposed position for providing a visible indication that a filmstrip within the cassette is unexposed, to a partly exposed position for providing a visible indication that the filmstrip is only partly exposed, and to an exposed position for providing a visible indication that exposure of the filmstrip is completed, wherein said device is characterized in that: a loading chamber is configured to receive the film cassette; and sensing means is adapted to cooperate with the status indicator of the cassette for preventing the cassette from being inserted into said loading chamber when the status indicator is in its exposed position.
Claim 3
Dependent Claim
71 words
A device as recited in claim 1, wherein said sensing means includes integral means that cooperate with the status indicator of the film cassette for allowing the cassette to be inserted into said loading chamber when the status indicator is in either one of its unexposed or partly exposed positions to only prevent the cassette from being inserted into the loading chamber when the status indicator is in its exposed position.
Claim 4
Dependent Claim
70 words
A device as recited in claim 1, wherein said sensing means includes integral means that cooperates with the status indicator of the cassette for preventing the cassette from being inserted into said loading chamber when the status indicator is in either one of its exposed or partly exposed positions to allow the cassette only to be inserted in the loading chamber when the status indicator is in its unexposed position.
Claim 5
Dependent Claim
78 words
A device as recited in claim 1, herein said sensing means includes a sensing member normally positioned for abutment with the status indicator of the film cassette when the cassette is attempted to be inserted into said loading chamber, said sensing member supported to be moved by the status indicator out of the way of the status indicator to allow the cassette to be inserted into the loading chamber when the status indicator is in its unexposed position.
Claim 6
Dependent Claim
116 words
A device as recited in claim 1, wherein said sensing means includes a sensing member normally positioned for abutment with the status indicator of the film cassette when the cassette is attempted to be inserted into said loading chamber, said sensing member supported to be moved by the status indicator out of the way of the status indicator to allow the cassette to be inserted into the loading chamber when the status indicator is in either one of its unexposed or partly exposed positions but not to be moved out of the way of the status indicator to prevent insertion of the cassette into the loading chamber when the status indicator is in its exposed position.
Claim 7
Dependent Claim
116 words
A device as recited in claim 1, wherein said sensing means includes a sensing member normally positioned for abutment with the status indicator of the film cassette when the cassette is attempted to be inserted into said loading chamber, said sensing member supported to be moved by the status indicator out of the way of the status indicator to allow the cassette to be inserted into the loading chamber when the status indicator is in its unexposed position but not to be moved out of the way of the status indicator to prevent insertion of the cassette into the loading chamber when the status indicator is in either one of its exposed or partly exposed positions.
Claim 8
Independent Claim
63 words
A device as recited in any one of claims 4, 5 or 6, wherein said loading chamber includes an entry opening for inserting the film cassette lengthwise into the loading chamber, and said sensing member normally protrudes into the loading chamber for abutment with the status indicator of the cassette when the cassette is attempted to be inserted lengthwise into the loading chamber.
Claim 9
Dependent Claim
35 words
A device as recited in claim 7, wherein said sensing member is spring-biased to normally protrude into said loading chamber and includes a hook-like end portion for catching the status indicator of the film cassette.
Claim 10
Independent Claim
98 words
A device to be used with a film cassette having a film-exposure status indicator movable from an unexposed position for providing a visible indication that a filmstrip within the cassette is unexposed to an exposed position for providing a visible indication that exposure of the filmstrip is completed, wherein said is characterized in that: a loading chamber is configured to receive the film cassette; and sensing means is adapted to cooperate with the status indicator of the cassette for preventing the cassette from being inserted into said loading chamber when the status indicator is in its exposed position.
Claim 11
Independent Claim
98 words
A device to be used with a film cassette having a film-exposure status indicator movable from an unexposed position for providing a visible indication that a filmstrip within the cassette is unexposed to an exposed position for providing a visible indication that exposure of the filmstrip is completed, wherein said is characterized in that: a loading chamber is configured to receive the film cassette; and sensing means is adapted to cooperate with the status indicator of the cassette for preventing the cassette from being inserted into said loading chamber when the status indicator is in its exposed position.
Claim 12
Dependent Claim
110 words
A device as recited in claim 9, wherein said sensing means includes a sensing member normally positioned for abutment with the status indicator of the film cassette when the cassette is attempted to be inserted into said loading chamber, said sensing member supported to be moved by the status indicator out of the way of the status indicator to allow the cassette to be inserted into the loading chamber when the status indicator is in its unexposed position but not to be moved out of the way of the status indicator to prevent insertion of the cassette into the loading chamber when the status indicator is in its exposed position.
Claim 13
Dependent Claim
57 words
A device as recited in claim 10, wherein said loading chamber includes an entry opening for inserting the film cassette lengthwise into the loading chamber, and said sensing member normally protrudes into the loading chamber for abutment with the status indicator of the cassette when the cassette is attempted to be inserted lengthwise into the loading chamber.
Claim 14
Dependent Claim
25 words
A device as recited in claim 11, wherein said sensing member includes a hook-like end portion for catching the status indicator of the film cassette.
Claim 15
Independent Claim
100 words
A device to be used with a film cassette having a film-exposure status indicator movable from an unexposed position for providing a visible indication that a filmstrip within the cassette is unexposed to some other position for providing a visible indication that the filmstrip is at least partly exposed, wherein said device is characterized in that: a loading chamber is configured to receive the film cassette; and sensing means is adapted to cooperate with the status indicator of the cassette for preventing the cassette from being inserted into said loading chamber when the status indicator is in the other position.
Claim 16
Independent Claim
100 words
A device to be used with a film cassette having a film-exposure status indicator movable from an unexposed position for providing a visible indication that a filmstrip within the cassette is unexposed to some other position for providing a visible indication that the filmstrip is at least partly exposed, wherein said device is characterized in that: a loading chamber is configured to receive the film cassette; and sensing means is adapted to cooperate with the status indicator of the cassette for preventing the cassette from being inserted into said loading chamber when the status indicator is in the other position.
Claim 17
Dependent Claim
110 words
A device as recited in claim 13, wherein said sensing means includes a sensing member normally positioned for abutment with the status indicator of the film cassette when the cassette is attempted to be inserted into said loading chamber, said sensing member supported to be moved by the status indicator out of the way of the status indicator to allow the cassette to be inserted into the loading chamber when the status indicator is in its unexposed position but not to be moved out of the way of the status indicator to prevent insertion of the cassette into the loading chamber when the status indicator is in its other position.
Claim 18
Dependent Claim
57 words
A device as recited in claim 14, wherein said loading chamber includes an entry opening for inserting the film cassette lengthwise into the loading chamber, and said sensing member normally protrudes into the loading chamber for abutment with the status indicator of the cassette when the cassette is attempted to be inserted lengthwise into the loading chamber.
Claim 19
Dependent Claim
25 words
A device as recited in claim 15, wherein said sensing member includes a hook-like end portion for catching the status indicator of the film cassette.
References Cited (Backward Citations)
US4310233A
Cited
US4401379A
Cited
US4423943A
Cited
US4834306A
Cited
US4846418A
Cited
US4965600A
Cited
US4947197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-18 | 1994-08-20 | 1995-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-18 | 1998-08-20 | 1999-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-18 | 2002-08-20 | 2003-02-19 | $7700.00 | Window Closed / Lapsed |