US4095246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bellows setting equipment
Assignee: Individual
•
Filing: 1977-03-03
•
Granted: 1978-06-13
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Expires: 1997-03-03
Abstract
Abstract Equipment for the setting of the bellows between an objective and a camera. An arrangement is devised to reduce play and inaccuracy by the use of a control and operating member acting on an intermediate element of a gear train between the elements controlling the diaphragm setting at the objective and thus controlling the diaphragm setting at the camera.
Inventors
- 👤 Ferdinand Kellner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:19
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/04; G03B17/045; G03B9/00; G03B9/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
121 words
In equipment for setting the bellows between a camera and a relatively movable objective in front of said camera, this equipment being of the kind comprising a front standard for connection to the objective, a rear standard for connection to the camera, a guide frame on which said front and rear standards are mounted for relative adjustment to vary the spacing between them, and an assembly including a gear train associated with said standards and said guide frame for coupling diaphragm control elements associated respectively with the objective and with the camera, the improvement which consists in the provision of a member for coordinated operation of said control elements, said operating member acting on an intermediate element of said gear train.
Claim 2
Dependent Claim
121 words
In equipment for setting the bellows between a camera and a relatively movable objective in front of said camera, this equipment being of the kind comprising a front standard for connection to the objective, a rear standard for connection to the camera, a guide frame on which said front and rear standards are mounted for relative adjustment to vary the spacing between them, and an assembly including a gear train associated with said standards and said guide frame for coupling diaphragm control elements associated respectively with the objective and with the camera, the improvement which consists in the provision of a member for coordinated operation of said control elements, said operating member acting on an intermediate element of said gear train.
Claim 3
Dependent Claim
24 words
Setting equipment according to claim 1, in which said gear train includes a transmission bar, and said operating member acts directly on said bar.
Claim 4
Dependent Claim
21 words
Setting equipment according to claim 2, in which said operating member is a disc rotatably mounted on the said rear standard.
Claim 5
Dependent Claim
20 words
Setting equipment according to claim 3, in which toothed transmission wheels are connected between said disc and said transmission bar.
Claim 6
Dependent Claim
44 words
Setting equipment according to claim 4, in which said disc is formed with a cavity and a pair of intermeshing pinions are mounted in said cavity, one said pinion being connected to said disc and the other pinion being fastened to said transmission bar.
Claim 7
Dependent Claim
69 words
Setting equipment according to claim 1, in which said gear train includes a transmission bar, a drive ring is rotatably mounted on each said front standard and said rear standard substantially coaxial with the optical axis of the camera and the objective, each said drive ring is operatively connected to said transmission bar through elements of said gear train, and each said drive ring carries an outwardly-projecting coupling element.
Claim 8
Dependent Claim
26 words
Setting equipment according to claim 6, in which each drive ring is mounted in the corresponding standard with its coupling element projecting outwards from said standard.
Claim 9
Dependent Claim
26 words
Setting eqiupment according to claim 7, in which each said coupling element is operatively associated with the control elements of the objective and the camera respectively.
Claim 10
Dependent Claim
33 words
Setting equipment according to claim 8, in which each said drive ring is operatively connected to said transmission bar through an intermediate toothed wheel in engagement with a pinion carried by said bar.
Claim 11
Dependent Claim
26 words
Setting equipment according to claim 1, in which the transmission members of said gear train are of substantially like form in the front and rear standards.
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) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |