US3580155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driving arrangement for single blade shutter for photographic apparatus
Assignee: Agfa Gevaert AG
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Filing: 1968-11-07
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Granted: 1971-05-25
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Expires: 1988-11-07
Abstract
Abstract A driving arrangement for filters, shutter blades or analogous light-obstructing elements of photographic cameras or photographic printing apparatus comprises an electromagnet having an armature which is turnable within a predetermined angle to turn a one-armed lever which is rigid with the light-obstructing element. The motion transmitting connection between the armature and the lever comprises a gear segment on the armature, a gear provided on an intermediate shaft which carries a crank arm, and a pin-and-slot connection between the crank arm and the lever.
Inventors
- 👤 Wolfgang Zahn
- 👤 Erlich Nagel
- 👤 Reinhold Langer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:03
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B17/00; G03B17/02; G03B17/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
98 words
A driving arrangement, particularly for effecting movements of light-obstructing elements in photographic apparatus, comprising an electromagnet having an armature rotatable within a predetermined angle in response to energization and deenergization of the electromagnet; a carrier pivotable about a fixed axis and arranged to support and to transmit motion to a light-obstructing element; an arm turnable by said armature between two end positions; and a connection between said arm and said carrier including a slot provided in said carrier and extending substantially radially of said fixed axis and a pin provided on said arm and extending into said slot.
Claim 2
Dependent Claim
98 words
A driving arrangement, particularly for effecting movements of light-obstructing elements in photographic apparatus, comprising an electromagnet having an armature rotatable within a predetermined angle in response to energization and deenergization of the electromagnet; a carrier pivotable about a fixed axis and arranged to support and to transmit motion to a light-obstructing element; an arm turnable by said armature between two end positions; and a connection between said arm and said carrier including a slot provided in said carrier and extending substantially radially of said fixed axis and a pin provided on said arm and extending into said slot.
Claim 3
Dependent Claim
119 words
A driving arrangement, particularly for effecting movements of light-obstructing elements in photographic apparatus, comprising an electromagnet having an armature rotatable within a predetermined angle in response to energization and deenergization of the electromagnet; a carrier pivotable about a fixed axis and arranged to support and to transmit motion to a light-obstructing element; an arm turnable by said armature about a second fixed axis between two end positions; a pin-and-slot connection between said arm and said carrier; and a transmission interposed between said armature and said arm, said transmission comprising a gear train having a gear segment rigid with said armature and a gear meshing with said segment and fixed to said arm for rotation about said second fixed axis.
Claim 4
Dependent Claim
119 words
A driving arrangement, particularly for effecting movements of light-obstructing elements in photographic apparatus, comprising an electromagnet having an armature rotatable within a predetermined angle in response to energization and deenergization of the electromagnet; a carrier pivotable about a fixed axis and arranged to support and to transmit motion to a light-obstructing element; an arm turnable by said armature about a second fixed axis between two end positions; a pin-and-slot connection between said arm and said carrier; and a transmission interposed between said armature and said arm, said transmission comprising a gear train having a gear segment rigid with said armature and a gear meshing with said segment and fixed to said arm for rotation about said second fixed axis.
Claim 5
Dependent Claim
93 words
A driving arrangement, particularly for effecting movement of light-obstructing elements in photographic apparatus, comprising an electromagnet having an armature rotatable within a predetermined angle in response to energization and deenergization of the electromagnet; a carrier pivotable about a fixed axis and arranged to support and to transmit motion to a light-obstructing element; an arm turnable by said armature between two end positions; and a pin-and-slot connection between said arm and said carrier, said arm being pivotable about an axis which is parallel to said fixed axis and to the axis of said armature.
Claim 6
Dependent Claim
93 words
A driving arrangement, particularly for effecting movement of light-obstructing elements in photographic apparatus, comprising an electromagnet having an armature rotatable within a predetermined angle in response to energization and deenergization of the electromagnet; a carrier pivotable about a fixed axis and arranged to support and to transmit motion to a light-obstructing element; an arm turnable by said armature between two end positions; and a pin-and-slot connection between said arm and said carrier, said arm being pivotable about an axis which is parallel to said fixed axis and to the axis of said armature.
Claim 7
Dependent Claim
133 words
A driving arrangement, particularly for effecting movements of light-obstructing elements in photographic apparatus, comprising an electromagnet having an armature rotatble within a predetermined angle in response to energization and deenergization of the electromagnet a carrier pivotable about a fixed axis and arranged to support and to transmit motion to a light-obstructing element; an arm turnable by said armature between two end positions; and a pin-and-slot connection between said arm and said carrier, at least one of said end positions of said arm being a dead center position in which a line connecting the axis of the pin of said connEction with the axis of said carrier makes with a line connecting the axes of said pin and said arm an angle of n times 90* wherein n is a whole number including one.
Claim 8
Dependent Claim
133 words
A driving arrangement, particularly for effecting movements of light-obstructing elements in photographic apparatus, comprising an electromagnet having an armature rotatble within a predetermined angle in response to energization and deenergization of the electromagnet a carrier pivotable about a fixed axis and arranged to support and to transmit motion to a light-obstructing element; an arm turnable by said armature between two end positions; and a pin-and-slot connection between said arm and said carrier, at least one of said end positions of said arm being a dead center position in which a line connecting the axis of the pin of said connEction with the axis of said carrier makes with a line connecting the axes of said pin and said arm an angle of n times 90* wherein n is a whole number including one.
Claim 9
Dependent Claim
19 words
A driving arrangement as defined in claim 4, further comprising a transmission interposed between said armature and said arm.
Claim 10
Dependent Claim
15 words
A driving arrangement as defined in claim 5, wherein said transmission comprises a gear train.
Claim 11
Dependent Claim
23 words
A driving arrangement as defined in claim 4, further comprising means for permanently biasing said arm to one of said end positions thereof.
Claim 12
Dependent Claim
34 words
A driving arrangement as defined in claim 7, further comprising support means for said electromagnet, said carrier and said arm, said biasing means comprising spring means operating between said armature and said support means.
Claim 13
Dependent Claim
26 words
A driving arrangement as defined in claim 4, further comprising resilient means arranged to oppose rotation of said armature in response to energization of said electromagnet.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |