Patent US3323982A successfully refreshed from Google Patents.
US3323982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable drainage element for fourdrinier paper machines
Assignee: Millspaugh Ltd
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Filing: 1964-09-14
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Granted: 1967-06-06
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Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 Harry W Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:31
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/48; D21F1/483; D21F1/486
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A DE-WATERING DEVICE FOR THE FORMING WIRE OF A PAPER-MAKING MACHINE, COMPRISING AN ELEMENT OF AERODYNAMIC SHAPE, AND A MOUNTING ON WHICH THE ELEMENT IS SUPPORTED TO EXTEND TRANSVERSELY OF THE UNDERSIDE OF THE FORMING WIRE, THE ELEMENT BEING DISPOSED WITH THE LEADING EDGE OF ITS AERODYNAMIC SHAPE DIRECTED OPPOSITE TO THE DIRECTION OF WIRE TRAVEL AND WITHA DOWNWARD INCLINATION TOWARDS THE LEADING EDGE, AND IN CONTACT BY ITS UPPER SURFACE ADJACENT ITS TRAILING EDGE WITH THE UNDER SURFACE OF THE WIRE, AND HOLES BEING FORMED THROUGH THE AERODYNAMIC SHAPE FROM THE UPPER SURFACE OF THE ELEMENT TO THE LOWER SURFACE, INCLINED REARWARDLY WITH RESPECT TO THE DIRECTION OF WIRE TRAVEL.
Claim 2
Dependent Claim
111 words
A DE-WATERING DEVICE FOR THE FORMING WIRE OF A PAPER-MAKING MACHINE, COMPRISING AN ELEMENT OF AERODYNAMIC SHAPE, AND A MOUNTING ON WHICH THE ELEMENT IS SUPPORTED TO EXTEND TRANSVERSELY OF THE UNDERSIDE OF THE FORMING WIRE, THE ELEMENT BEING DISPOSED WITH THE LEADING EDGE OF ITS AERODYNAMIC SHAPE DIRECTED OPPOSITE TO THE DIRECTION OF WIRE TRAVEL AND WITHA DOWNWARD INCLINATION TOWARDS THE LEADING EDGE, AND IN CONTACT BY ITS UPPER SURFACE ADJACENT ITS TRAILING EDGE WITH THE UNDER SURFACE OF THE WIRE, AND HOLES BEING FORMED THROUGH THE AERODYNAMIC SHAPE FROM THE UPPER SURFACE OF THE ELEMENT TO THE LOWER SURFACE, INCLINED REARWARDLY WITH RESPECT TO THE DIRECTION OF WIRE TRAVEL.
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |