US3077925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction box belt
Assignee: Beloit Iron Works Inc
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Filing: 1960-01-26
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Granted: 1963-02-19
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Expires: 1980-01-26
Abstract
No abstract record available.
Inventors
- 👤 Wilder E Perkins
- 👤 Edgar J Justus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:42
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/48; D21F1/52; D21F1/523; B; B65; B65G; B65G15/00; B65G15/30; B65G15/32; B65G15/34; B65G15/36; B65G15/42; D21F1/526; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
A BELT COMPRISING AN ENDLESS FLEXIBLE RUBBER CASING BODY PROVIDED WITH LATERALLY EXTENDING DRAINAGE CHANNELS, SAID DRAINAGE CHANNELS BEING ARRANGED IN THE BELT TO FORM GROUPS OF LONGITUDINALLY DISPOSED HOLES WHICH IN THE MOVEMENT OF THE BELT ARE ADAPTED TO STAY IN ALIGNMENT, SAID BELT ENCASING A STRENGTH MEMBER COMPRISING A PLURALITY OF LAMINATED PLIES OF RUBBER IMPREGNATED FABRIC SHEETS, EACH SHEET COMPRISING A FABRIC WOVEN TRANSVERSELY SOLELY WITH STRAIGHT METAL WIRE FILLER AND LONGITUDINALLY WITH AN INTERLACED YARN WARP, THE METAL FILLER WIRE FUNCTIONING TO INHIBIT CHANGES IN THE WIDTH DIMENSIONS OF THE BELT SO AS TO MAINTAIN SAID ALIGNMENT, AND THE YARN WARP FUNCTIONING TO MAINTAIN BELT FLEXIBILITY IN A BELT LONGITUDINAL DIRECTION.
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |