US3438852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web pick-up for two wire forming paper machine
Assignee: Beloit Corp
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Filing: 1965-10-28
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Granted: 1969-04-15
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Expires: 1985-10-28
Abstract
No abstract record available.
Inventors
- 👤 Donald A Ely Sr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:16
CPC Classifications
D; D21; D21F; D21F9/00; D21F9/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
210 words
A TWO WIRE FORMING PAPER MACHINE COMPRISING IN COMBINATION, UPPER AND LOWER FORMING WIRES DEFINING A HORIZONTAL WEB FORMING RUN BETWEEN THEM, A PULP DELIVERING MEANS AT THE FORMING END OF THE WIRES FOR PLACING A LAYER OF STOCK BETWEEN THE WIRES TO FORM A WEB, DEWATERING MEANS WITHINEACH OF SAID WIRES FOR REMOVING WATE FROM THE WEB THROUGH EACH OF THE WIRES, MEANS SUPPORTING THE WIRES INCLUDING COUCH ROLLS AT THE END OF THE DEWATERING RUN OF THE WIRES, SAID COUCH ROLL FOR SAID UPPER WIRE HAVING A SUCTION GLAND WHICH CAUSES THE WEB TO FOLLOW THE UPPER WIRE UPWARDLY IN A GENERALLY VERTICAL PLANE, A PICK OFF FELT IN AN ANNULAR WEB PICK OFF RELATION WITH THE GENERALLY VERTICAL PLANE OF THE UPPER WIRE BEYOND AND ABOVE THE UPPER WIRE COUCH ROLL, A SUCTION PICK OFF ROLL WITHIN THE FELT ABOVE THE COURCH ROLL HAVING A SUCTION GLAND FACING THE UPPER WIRE AND FORMING A PICK OFF NIP WITH THE UPPER WIRE, AND A PRESSS ROLL COUPLE IN NIP DEFINING RELATION WITH THE FELT PASSING HORIZONTALLY THEREBETWEEN HAVING A LOWER WATER RECEIVING ROLL ENGAGING THE FELT SO THAT THE WEB IS CARRIED ON THE UPPER SURFACE OF THE FELT AND ENGAGES THE UPPER ROLL OF TH PRESS COUPLE.
Claim 2
Dependent Claim
210 words
A TWO WIRE FORMING PAPER MACHINE COMPRISING IN COMBINATION, UPPER AND LOWER FORMING WIRES DEFINING A HORIZONTAL WEB FORMING RUN BETWEEN THEM, A PULP DELIVERING MEANS AT THE FORMING END OF THE WIRES FOR PLACING A LAYER OF STOCK BETWEEN THE WIRES TO FORM A WEB, DEWATERING MEANS WITHINEACH OF SAID WIRES FOR REMOVING WATE FROM THE WEB THROUGH EACH OF THE WIRES, MEANS SUPPORTING THE WIRES INCLUDING COUCH ROLLS AT THE END OF THE DEWATERING RUN OF THE WIRES, SAID COUCH ROLL FOR SAID UPPER WIRE HAVING A SUCTION GLAND WHICH CAUSES THE WEB TO FOLLOW THE UPPER WIRE UPWARDLY IN A GENERALLY VERTICAL PLANE, A PICK OFF FELT IN AN ANNULAR WEB PICK OFF RELATION WITH THE GENERALLY VERTICAL PLANE OF THE UPPER WIRE BEYOND AND ABOVE THE UPPER WIRE COUCH ROLL, A SUCTION PICK OFF ROLL WITHIN THE FELT ABOVE THE COURCH ROLL HAVING A SUCTION GLAND FACING THE UPPER WIRE AND FORMING A PICK OFF NIP WITH THE UPPER WIRE, AND A PRESSS ROLL COUPLE IN NIP DEFINING RELATION WITH THE FELT PASSING HORIZONTALLY THEREBETWEEN HAVING A LOWER WATER RECEIVING ROLL ENGAGING THE FELT SO THAT THE WEB IS CARRIED ON THE UPPER SURFACE OF THE FELT AND ENGAGES THE UPPER ROLL OF TH PRESS COUPLE.
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) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |