Patent US4464797A successfully refreshed from Google Patents.
Patent US4623232A successfully refreshed from Google Patents.
US4623232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera with improved film leader capturing means
Assignee: W Haking Enterprises Ltd
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Filing: 1984-11-29
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Granted: 1986-11-18
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Expires: 2004-11-29
Abstract
Abstract The camera preferably has a slotted take-up spool which when the film compartment covering door is opened is automatically rotated into an ideal position where a hook in a film-capturing slot thereof has an outward facing orientation ideal for capturing a film leader perforation when the film leader is inserted therein. The slot is preferably configured as a lengthwise passage leading into a hollow axially disposed chamber within the take-up spool, the trailing edge of the slot nearest the imaging station being provided with the hook. This edge is positioned so that it does not come into confronting engagement with the film during initial advance thereof until the film is firmly captively secured over the hook.
Inventors
- 👤 Wan C. Wong
- 👤 Shigeru Oshima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:43
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/04; G03B1/00; G03B1/56
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
266 words
In a still camera including a housing having a film compartment with a cassette-chamber at one side of an imaging station and for receiving a film cassette with an apertured film leader extending therefrom, film guide surface means on opposite sides of said imaging station against which said film can be flattened, a take-up spool chamber disposed on the opposite side of said imaging station and having a take-up spool therein, said take-up spool having a slot means for accepting a film leader to be manually inserted into said slot means, said slot means having hook means for capturing the apertured portion of the film leader inserted thereinto, said spool being movable into a given most ideal position where said hook means can most effectively capture the apertured portion of said film leader, said camera further having a door movable between a film compartment closing position to a film compartment exposing position where said cassette-receiving chamber and the length of said take-up spool are exposed for cassette and leader insertion, said door when closed pressing said film flat against said guide rail means, electric motor drive means for driving said take-up spool in at least a film advancing direction so as to feed subsequent frames of fresh film to said imaging station, and rewind means for rewinding said film from said take-up spool back to said dispenser, the improvement comprising: switching means responsive to the position of said take-up spool in a position other than said ideal position for momentarily energizing said motor drive means to position said take-up spool slot means in said ideal position.
Claim 2
Dependent Claim
266 words
In a still camera including a housing having a film compartment with a cassette-chamber at one side of an imaging station and for receiving a film cassette with an apertured film leader extending therefrom, film guide surface means on opposite sides of said imaging station against which said film can be flattened, a take-up spool chamber disposed on the opposite side of said imaging station and having a take-up spool therein, said take-up spool having a slot means for accepting a film leader to be manually inserted into said slot means, said slot means having hook means for capturing the apertured portion of the film leader inserted thereinto, said spool being movable into a given most ideal position where said hook means can most effectively capture the apertured portion of said film leader, said camera further having a door movable between a film compartment closing position to a film compartment exposing position where said cassette-receiving chamber and the length of said take-up spool are exposed for cassette and leader insertion, said door when closed pressing said film flat against said guide rail means, electric motor drive means for driving said take-up spool in at least a film advancing direction so as to feed subsequent frames of fresh film to said imaging station, and rewind means for rewinding said film from said take-up spool back to said dispenser, the improvement comprising: switching means responsive to the position of said take-up spool in a position other than said ideal position for momentarily energizing said motor drive means to position said take-up spool slot means in said ideal position.
Claim 3
Dependent Claim
51 words
The camera of claim 1 wherein said switching means is coupled to said door to energize said motor means to orient said take-up spool to said ideal position responsively to movement of said door to said film compartment exposing position when said take-up spool is in other than said ideal position.
Claim 4
Dependent Claim
20 words
The still camera of claim 2 wherein said door when closed presses said film flat against said guide rail means.
Claim 5
Dependent Claim
72 words
The camera of claim 2 wherein said take-up spool has an axially extending chamber therein, said slot means is a generally axially extending passage communicating between the outer surface of said take-up spool and said chamber, said passage being defined by two widely separated end walls and a pair of axially extending generally confronting walls diverging away from each other in an outward direction away from the rotational axis of said spool.
Claim 6
Dependent Claim
30 words
The camera of claim 4 wherein said slot-passing passage in said ideal position of said take-up spool faces generally in the direction of said imaging station and film guide surface.
Claim 7
Dependent Claim
87 words
The camera of claim 5 wherein said take-up spool has a cylindrical outer surface, said axially extending wall of said passage furthest from said imaging station when said take-up spool is in said ideal position extending in a generally radial direction to the cylindrical surface of said take-up spool, the other axially extending wall of said passage then closest to said imaging station defining an axially-extending surface at a substantial angle to a radial plane, and said hook means being a projection from said axially extending surface.
Claim 8
Dependent Claim
51 words
The camera of claim 6 wherein said hook means projection has a cylindrical outer periphery forming a continuation of the cylindrical periphery of said take-up spool and terminating in a generally radially extending surface to form a film leader aperture-capturing capturing edge facing in a direction away from said imaging station.
Claim 9
Dependent Claim
46 words
The camera of claim 5 wherein said hook means when said take-up spool is in said ideal position projects from said axially extending passage wall nearest said imaging station and said hook means has an aperture-capturing edge facing in a direcation away from said imaging station.
Claim 10
Dependent Claim
61 words
The camera of claim 8 wherein the latter axially extending wall is configured so that only the radially innermost portions thereof contacts the film during initial film advance after loading, and so that during a subsequent portion of the initial film advance after loading substantially the entire remainder of said wall comes into confronting engagement with a portion of the film.
Claim 11
Dependent Claim
39 words
The camera of claim 1 wherein said switching means includes cam means rotated with said take-up spool, said cam means actuating said switching means between open and closed positions thereof according to the angular position of said take-up spool.
Claim 12
Dependent Claim
75 words
The camera of claim 1 or 10 further including latch means operable between unlocking and released positions for releasably securing said door in a closed position, and wherein said switching means is coupled to energize said motor means to orient said take-up spool to said ideal position responsively to operation of said door from a locked and closed condition to a film compartment-exposing position when said take-up spool is in other than said ideal position.
Claim 13
Dependent Claim
215 words
In a camera having a film take-up spool adjacent an imaging station and provided with at least one slot means therein for accepting and capturing the end of a film leader inserted thereinto, said camera further having means for rotating said take-up spool to a chosen ideal loading orientation of said slot means, the improvement wherein said take-up spool has an axially extending chamber therein, said slot means is configured as a generally axially extending passage communicating between the outer surface of said take-up spool and said chamber, said passage is defined by two widely separated end walls and pair of axially extending walls diverging away from each other in an outward direction away from the rotational axis of said spool, the axially extending passage wall nearest the imaging station when the take-up spool is in said ideal orientation is provided with hook means circumferentially extending therefrom in a film advancing direction, and wherein the latter wall is configured so that during initial film advance after capture of a film by said hook means only the radially innermost portions of said wall contact the film, and so that during a subsequent portion of initial film advance substantially the entire remainder of said trailing wall comes into confronting engagement with a portion of said inserted film.
Claim 14
Dependent Claim
215 words
In a camera having a film take-up spool adjacent an imaging station and provided with at least one slot means therein for accepting and capturing the end of a film leader inserted thereinto, said camera further having means for rotating said take-up spool to a chosen ideal loading orientation of said slot means, the improvement wherein said take-up spool has an axially extending chamber therein, said slot means is configured as a generally axially extending passage communicating between the outer surface of said take-up spool and said chamber, said passage is defined by two widely separated end walls and pair of axially extending walls diverging away from each other in an outward direction away from the rotational axis of said spool, the axially extending passage wall nearest the imaging station when the take-up spool is in said ideal orientation is provided with hook means circumferentially extending therefrom in a film advancing direction, and wherein the latter wall is configured so that during initial film advance after capture of a film by said hook means only the radially innermost portions of said wall contact the film, and so that during a subsequent portion of initial film advance substantially the entire remainder of said trailing wall comes into confronting engagement with a portion of said inserted film.
Claim 15
Dependent Claim
19 words
The camera of claim 1, 2, or 12 wherein said take-up spool has only a single axial slot therein.
Claim 16
Dependent Claim
144 words
In a still camera including a housing having a film compartment with a cassette-receiving chamber at one side of an imaging station and for receiving a film cassette with an apertured film leader extending therefrom, film guide surface means on opposite sides of said imaging station against which said film can be flattened, a take-up spool chamber disposed on the opposite side of said imaging station and having take-up spool therein, said take-up spool having a slot means for accepting a film leader to be manually inserted into said slot means, said slot means having hook means for capturing the apertured portion of the film leader inserted thereinto, the improvement comprising means for automatically moving said take-up spool into a given most ideal position where said hook means can most effectively capture the apertured portion of said film leader, responsively to opening said door.
Claim 17
Dependent Claim
144 words
In a still camera including a housing having a film compartment with a cassette-receiving chamber at one side of an imaging station and for receiving a film cassette with an apertured film leader extending therefrom, film guide surface means on opposite sides of said imaging station against which said film can be flattened, a take-up spool chamber disposed on the opposite side of said imaging station and having take-up spool therein, said take-up spool having a slot means for accepting a film leader to be manually inserted into said slot means, said slot means having hook means for capturing the apertured portion of the film leader inserted thereinto, the improvement comprising means for automatically moving said take-up spool into a given most ideal position where said hook means can most effectively capture the apertured portion of said film leader, responsively to opening said door.
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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) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |