US3780882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate turn-over mechanism
Assignee: Moeller and Neuman GmbH
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Filing: 1972-12-14
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Granted: 1973-12-25
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Expires: 1992-12-14
Abstract
Abstract A hydraulically driven plate turn-over mechanism enabling inspection of both sides of rolled plates. The mechanism has two groups of turning arms which are independently pivotal by hydraulic actuators. The actuators are pivotally secured to a rocker which is pivotal about a hydraulic axis by means of a further actuator.
Inventors
- 👤 R Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:19
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/22; B65G47/24; B21; B21B; B21B39/00; B21B39/20; B21B39/32; F; F15; F15B; F15B15/00; F15B15/02; F15B15/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
112 words
Plate turn-over mechanism comprising two groups of turning arms pivotal about two parallel stationary shafts, support lugs on said arms in the vicinity of the pivot shafts for supporting a plate during the turning process, and a double-acting hydraulic actuator for moving each group of arms, each actuator being mounted for pivotal movement about a common axis on a rocker arm pivotal through a vertical plane of symmetry between the two pivot shafts, such that when the pistons of the actuators are fully extended and the rocker arm is in the vertical midposition, the tWo groups of turning arms lie face to face symmetrically with respect to the vertical plane of symmetry.
Claim 2
Dependent Claim
112 words
Plate turn-over mechanism comprising two groups of turning arms pivotal about two parallel stationary shafts, support lugs on said arms in the vicinity of the pivot shafts for supporting a plate during the turning process, and a double-acting hydraulic actuator for moving each group of arms, each actuator being mounted for pivotal movement about a common axis on a rocker arm pivotal through a vertical plane of symmetry between the two pivot shafts, such that when the pistons of the actuators are fully extended and the rocker arm is in the vertical midposition, the tWo groups of turning arms lie face to face symmetrically with respect to the vertical plane of symmetry.
Claim 3
Dependent Claim
56 words
A mechanism according to claim 1, wherein the turning arms in their initial horizontal position are supported by abutments and in this initial position of the turning arms the rocker arm is pivoted from its vertical mid-position in both directions through the same angle by the actuators switched to an inoperative i.e. to a floating position.
Claim 4
Dependent Claim
34 words
A mechanism according to claim 2, wherein a hydraulic actuator serves for swinging the rocker arm, the stroke of said actuator corresponding to the total swivel angle of the rocker arm the vertical mid-position.
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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |