Patent US3589792A successfully refreshed from Google Patents.
US3589792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating device for swivel-mounted mirror
Assignee: Eltro GmbH and Co
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Filing: 1969-10-17
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Granted: 1971-06-29
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Expires: 1989-10-17
Abstract
Abstract A device for the production of sharply limited oscillations of a swivel-mounted mirror, especially for opto-electronic scanners comprises a crank drive, whose pushrod incorporates a flexible drag link. The oscillating movements of the mirror are limited by abutments in which deviations of the deflections of the mirror from the stroke of the crank drive are permitted by the presence of the flexible drag link.
Inventors
- 👤 Georg Kurotschka
- 👤 Klaus Speckis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:42
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/08; G02B26/0816; G02B7/00; G02B7/18; G02B7/182; G02B7/1821
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
156 words
Apparatus comprising a swivel-mounted mirror, a crank drive coupled to said mirror to drive the same with oscillation, said crank drive including a pushrod with a given stroke, a flexible drag link in said pushrod, means coupling said mirror and pushrod for transmitting oscillation to said mirror from the stroke of the pushrod, said means including adjustment members for regulating the oscillatory stroke of the mirror, said flexible drag link absorbing the differences between the stroke of the pushrod and the stroke of the mirror, a second swivel-mounted mirror, the first said mirror being provided for line shift, the secOnd mirror for line scanning and for reflecting an image to the first said mirror, an electric motor, and an eccentric disc driven by said motor and coupled with the second mirror to oscillate the same, said motor being coupled to said crank drive to drive the latter whereby the mirrors are driven conjointly by said motor.
Claim 2
Dependent Claim
156 words
Apparatus comprising a swivel-mounted mirror, a crank drive coupled to said mirror to drive the same with oscillation, said crank drive including a pushrod with a given stroke, a flexible drag link in said pushrod, means coupling said mirror and pushrod for transmitting oscillation to said mirror from the stroke of the pushrod, said means including adjustment members for regulating the oscillatory stroke of the mirror, said flexible drag link absorbing the differences between the stroke of the pushrod and the stroke of the mirror, a second swivel-mounted mirror, the first said mirror being provided for line shift, the secOnd mirror for line scanning and for reflecting an image to the first said mirror, an electric motor, and an eccentric disc driven by said motor and coupled with the second mirror to oscillate the same, said motor being coupled to said crank drive to drive the latter whereby the mirrors are driven conjointly by said motor.
Claim 3
Dependent Claim
25 words
Apparatus as claimed in claim 1 wherein said adjustment members comprise abutment means for controlling the magnitude of the oscillatory stroke of said first mirror.
Claim 4
Dependent Claim
40 words
Apparatus as claimed in claim 2 wherein said means coupling said mirror and pushrod comprises an oscillatory arm connected with said mirror for common pivotal movement therewith, said pushrod being displaceable to contact said arm and pivotably move the same.
Claim 5
Dependent Claim
32 words
Apparatus as claimed in claim 3 comprising means acting on said arm to urge the same against said pushrod whereby the arm and mirror undergo oscillatory movement during stroke of the pushrod.
Claim 6
Dependent Claim
27 words
Apparatus as claimed in claim 4 wherein said abutment means comprises first and second abutments positioned on opposite sides of said arm to limit pivotal movement thereof.
Claim 7
Dependent Claim
23 words
Apparatus as claimed in claim 6 wherein said abutments are constituted by threaded pins adjustable in position towards and away from said arm.
Claim 8
Dependent Claim
21 words
Apparatus as claimed in claim 6 wherein said pushrod comprises first and second parts, said drag link connecting said parts together.
Claim 9
Dependent Claim
39 words
Apparatus as claimed in claim 1 comprising a collimating lens between said mirrors for collecting and projecting an image reflected from the second mirror to the first mirror, and a cell for receiving reflected rays from the first mirror.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |