US3149027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compartmented suction box
Assignee: Beloit Corp
•
Filing: 1962-06-11
•
Granted: 1964-09-15
•
Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Walter C Mih
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:58
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/48; D21F1/52; D21F7/00; D21F7/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN A FOURDRINIER PAPER MACHINE THE COMBINATIN COMPRISING A TRAVELLING FOURDRINIER WIRE HAVING A FORMING SURFACE, A HEAD BOX FOR DEPOSITING STOCK ON THE WIRE, SUCTION FLAT BOXES BENEATH THE WIRE FOR REMOVING WATER FROM A WEB FORMED ON THE WIRE SURFACE, A COMPARTMENTED FLAT BOX BENEATH THE WIRE POSITIONED AHEAD OF THE DRYLINE OF THE WEB FORMED ON THE WIRE HAVING SEPARATE SUCTION COMPARTMENTS AT DIFFERENT LOCATIONS ACROSS THE WEB, MEANS FOR APPLYING SUCTION TO EACH OF SAID COMPARTMENTS, AND MEANS FOR CONTROLLING THE SUCTION IN EACH OF SAID COMPARTMENTS SO THAT A STRAIGHT DRYLINE CAN BE OBTAINED.
Claim 2
Dependent Claim
99 words
IN A FOURDRINIER PAPER MACHINE THE COMBINATIN COMPRISING A TRAVELLING FOURDRINIER WIRE HAVING A FORMING SURFACE, A HEAD BOX FOR DEPOSITING STOCK ON THE WIRE, SUCTION FLAT BOXES BENEATH THE WIRE FOR REMOVING WATER FROM A WEB FORMED ON THE WIRE SURFACE, A COMPARTMENTED FLAT BOX BENEATH THE WIRE POSITIONED AHEAD OF THE DRYLINE OF THE WEB FORMED ON THE WIRE HAVING SEPARATE SUCTION COMPARTMENTS AT DIFFERENT LOCATIONS ACROSS THE WEB, MEANS FOR APPLYING SUCTION TO EACH OF SAID COMPARTMENTS, AND MEANS FOR CONTROLLING THE SUCTION IN EACH OF SAID COMPARTMENTS SO THAT A STRAIGHT DRYLINE CAN BE OBTAINED.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |