Patent US3702604A successfully refreshed from Google Patents.
US3603233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film metering mechanism
Assignee: Agfa Gevaert AG
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Filing: 1969-03-14
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Granted: 1971-09-07
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Expires: 1989-03-14
Abstract
Abstract A still camera wherein a slide of synthetic plastic material is movable with the first of its several arms against a line of perforations on roll film between the supply and takeup reels in response to rotation of the film transporting wheel. The wheel moves the slide by way of a second arm until a third arm of the slide engages the wheel and holds it against rotation when the first arm enters a perforation. The slide can be retracted to respectively disengage its first and third arms from the film and from the wheel in response to actuation of the shutter release. This release is moveable back and forth and actuates a rockable disk-shaped shutter by way of a snap-over spring.
Inventors
- 👤 Rudolf Kremp
- 👤 Alfred Winkler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:15
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; G03B9/10; G03B17/00; G03B17/42
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
205 words
In a camera, a housing; a supply of roll film provided in said housing and having a line of perforations; film transporting means rotatable with reference to said housing in a predetermined direction to draw the film from said supply along a predetermined path; shutter means; release means operative to actuate said shutter means; and control means movably mounted in said housing and including a first portion arranged to track the film along said line and to enter a perforation in a first position of said control means, a second portion arranged to hold said transporting means against rotation in said direction in said first position of said control means, and a third portion arranged to respectively disengage said first and second portions from the film and from said transporting means in response to operation of said release means and in response to resulting movement of said control means to a second position, said first portion being integral with at least one of said second and third portions of said control means and said transporting means comprising means for moving said control means toward said first position in response to rotation of said transporting means in said direction subsequent To operation of said release means.
Claim 2
Dependent Claim
205 words
In a camera, a housing; a supply of roll film provided in said housing and having a line of perforations; film transporting means rotatable with reference to said housing in a predetermined direction to draw the film from said supply along a predetermined path; shutter means; release means operative to actuate said shutter means; and control means movably mounted in said housing and including a first portion arranged to track the film along said line and to enter a perforation in a first position of said control means, a second portion arranged to hold said transporting means against rotation in said direction in said first position of said control means, and a third portion arranged to respectively disengage said first and second portions from the film and from said transporting means in response to operation of said release means and in response to resulting movement of said control means to a second position, said first portion being integral with at least one of said second and third portions of said control means and said transporting means comprising means for moving said control means toward said first position in response to rotation of said transporting means in said direction subsequent To operation of said release means.
Claim 3
Dependent Claim
35 words
A structure as defined in claim 1, wherein said control means is reciprocable between said first and second positions in a plane which is substantially normal to the plane of the film in said path.
Claim 4
Dependent Claim
80 words
A structure as defined in claim 1, wherein the first portion of said control means comprises an arm and wherein said control means further comprises an elastic fourth portion arranged to bias said arm in a direction to move the latter into a perforation during withdrawal of film from said supply in response to rotation of said transporting means whereby the second portion of said control means engages and holds said transporting means against further rotation in said predetermined direction.
Claim 5
Dependent Claim
49 words
A structure as defined in claim 1, wherein the third portion of said control means comprises follower means and said release means comprises motion transmitting means arranged to move the control means to second position by way of said follower means in response to operation of said release means.
Claim 6
Dependent Claim
50 words
A structure as defined in claim 4, wherein said release means is movable back and forth between two end positions and wherein said shutter means is arranged to admit scene light to an unexposed film frame in response to each movement of said release means between said end positions thereof.
Claim 7
Dependent Claim
42 words
A structure as defined in claim 5, wherein said motion transmitting means is arranged to move the control means to second position by way of said follower means in response to each movement of said release means between said end positions thereof.
Claim 8
Dependent Claim
42 words
A structure as defined in claim 1, wherein said control means includes a fourth portion which receives motion from said transporting means to move said control means toward first position in response to rotation of said transporting means in said predetermined direction.
Claim 9
Dependent Claim
48 words
A structure as defined in claim 7, wherein said fourth portion is arranged to engage with said transporting means and to thereby hold said control means in second position subsequent to operation of said release means and prior to rotation of said transporting means in said predetermined direction.
Claim 10
Dependent Claim
17 words
A structure as defined in claim 8, wherein the fourth portion of said control means is elastic.
Claim 11
Dependent Claim
81 words
A structure as defined in claim 7, wherein the means for moving said control means toward first position comprises an annulus of teeth on said transporting means and wherein the fourth portion of said control means comprises a further tooth which engages one tooth of said annulus in the second position of said control means so that said control means is moved toward first position by way of said further tooth in response to rotation of transporting means in said direction.
Claim 12
Dependent Claim
60 words
A structure as defined in claim 7, wherein said fourth portion receives motion from said transporting means to move said control means during the initial stage of movement of said control means to first position until said first portion engages with and tracks the film which is being drawn from said supply in response to rotation of said transporting means.
Claim 13
Dependent Claim
16 words
A structure as defined in claim 1, wherein said control means consists of synthetic plastic material.
Claim 14
Dependent Claim
79 words
A structure as defined in claim 1, further comprising a takeup reel mounted in said housing and connected for rotation with said film transporting means, said film having a leading end connected with said takeup reel and said reel comprising a flange at one end thereof, said flange having a circumferential groove and said housing including a ring-shaped projection extending into said groove to thereby impede penetration of light around said flange and toward the film on said reel.
Claim 15
Dependent Claim
34 words
A structure as defined in claim 13, wherein said flange comprises two axially spaced disk-shaped portions and a cylindrical portion of smaller diameter interposed between said disk-shaped portions, said groove surrounding said cylindrical portion.
Claim 16
Dependent Claim
108 words
A structure As defined in claim 1, wherein said shutter means comprises a disk rotatable in said housing about a predetermined axis and having a light admitting opening, said release means comprising a shutter actuating portion reciprocable between two end positions and a snap-over spring having a first portion connected with said disk and a second portion connected with said actuating portion, said spring being arranged to rotate said disk in a first direction in response to movement of said actuating portion to one end position and to rotate said disk in a second direction in response to movement of said actuating portion to the other end position.
Claim 17
Dependent Claim
29 words
A structure as defined in claim 1, wherein said supply of film is completely encased in and accessible only in response to at least partial breakage of said housing.
Claim 18
Dependent Claim
59 words
A structure as defined in claim 1, wherein said film transporting means comprises a manually rotatable wheel and the means for moving the control means toward said first position comprises teeth provided on said wheel, said control means having a projection which engages with one of the teeth on said wheel in the second position of said control means.
Claim 19
Dependent Claim
21 words
A structure as defined in claim 3, wherein said fourth portion is integral with the first portion of said control means.
Claim 20
Dependent Claim
21 words
A structure as defined in claim 7, wherein said fourth portion is integral with the first portion of said control means.
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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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |