US3559247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for hydraulic presses
Assignee: ABB Norden Holding AB
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Filing: 1968-03-18
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Granted: 1971-02-02
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Expires: 1988-03-18
Abstract
Abstract IN HYDRAULIC PRESSES, PREFERABLY POWDER PRESSES, THERE ARE ARRANGED POSITION MEASURING MEANS, MEASURING THE MOVEMENTS OF UPPER AND LOWER PRESS HEADS OR MOVEMENTS OF INBUILT TOOLS. THE OUTPUTS OF SAID MEANS ARE MODIFIED IN QUOTA MEANS AND ARE COMBINED INTO A COMPARISON SIGNAL FOR CONTROLLING A HYDRAULIC VALVE TO CONTROL THE MOVEMENTS OF THE HEADS.
Inventors
- 👤 Paul Larsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:15
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; B30B11/00; B30B11/005; B30B11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |