Patent US3561892A successfully refreshed from Google Patents.
US3561892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accelerating device for gaseous and liquid media
Assignee: Individual
•
Filing: 1969-02-13
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Granted: 1971-02-09
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Expires: 1989-02-13
Abstract
Abstract A DEVICE HAVING A HOLLOW PRESSURE MEMBER INCLUDING FOUR SIDE SEGMENTS WHICH FORM A PRESSURE CHAMBER HVING A PARALLELOGRAM SHAPE AND CROSS SECTION IS PROVIDED FOR ACCELERATING A FLUID MEDIUM. EACH OF THE SIDE SEGMENTS IS ARTICULATED WITH RESPECT TO THE SEGMENTS ADJACENT THERETO, THEREBY FORMING A COLLAPSIBLE AND EXPANDABLE PRESSURE CHAMBER. MEANS ARE PROVIDED TO MOVE THE ARTICULATED SIDE SEGMENTS WITH RESPECT TO EACH OTHER FOR CAUSING THE MOVEMENT OF THE FLUID MEDIUM INTO AND OUT OF THE PRESSURE CHAMBER. A DIAPHRAGM MEANS IS DISPOSED WITHIN THE CHAMBER AND EXTENDS ACROSS AT LEAST A PORTION OF THE CROSS-SECTION OF THE PRESSURE CHAMBER.
Inventors
- 👤 Werner Achermann
- 👤 Franz Achermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:58
CPC Classifications
F; F04; F04B; F04B45/00; F04B45/02
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |