Patent US2309724A successfully refreshed from Google Patents.
Patent US3130472A successfully refreshed from Google Patents.
US3130472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selvage tightener for fabric shearing machines
Assignee: Riggs and Lombard Inc
•
Filing: 1963-02-04
•
Granted: 1964-04-28
•
Expires: 1983-02-04
Abstract
No abstract record available.
Inventors
- 👤 Lyman D Bickford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:17
CPC Classifications
D; D06; D06C; D06C25/00; Y; Y10; Y10T; Y10T83/00; Y10T83/323
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
IN A CLOTH SHEARING MACHINE, A FRAME, A CYLINDER ROTATABLY MOUNTED AT ITS ENDS IN THE FRAME AND HAVING A PLURALITY OF SPACED SHEARING BLADES EXTENDING LONGITUDINALLY THEREOF AT ITS PERIPHERY, A LEDGER KNIFE DISPOSED LONGITUDINALLY OF THE CYLINDER AND HAVING ONE LONGITUDINAL MARGIN IN SHEARING RELATION WITH THE BLADES, MEANS FOR SUPPORTING IN FULL WIDTH AND CONDUCTING LONGITUDINALLY THROUGH THE MACHINE TO AND PAST THE LEDGER KNIFE AND BLADES A STRIP OF FABRIC TO BE SHEARED, TWO RELATIVELY LONG ARMS PIVOTED TO THE FRAME RESPECTIVELY ADJACENT TO AND OUTWARDLY OF THE TWO MARGINS OF THE STRIP FORWARDLY OF THE LEDGER KNIFE AND EACH EXTENDING THEREFROM INWARDLY TOWARD THE OPPOSITE MARGIN OVER AND RELATIVELY INCLINED LONGITUDINALLY TO ONE FACE OF THE STRIP AND MOVABLE ABOUT ITS PIVOT AXIS TOWARD AND FROM THE STRIP, AND MEANS FOR MAINTAINING THE ARMS PIVOTED IN PREDETERMINED PRESSURE CONTACT WITH ADJACENT MARGINAL PORTIONS OF THE STRIP AT SAID ONE FACE, THEREBY REMOVING SLACK FROM SAID PORTIONS
Claim 2
Dependent Claim
161 words
IN A CLOTH SHEARING MACHINE, A FRAME, A CYLINDER ROTATABLY MOUNTED AT ITS ENDS IN THE FRAME AND HAVING A PLURALITY OF SPACED SHEARING BLADES EXTENDING LONGITUDINALLY THEREOF AT ITS PERIPHERY, A LEDGER KNIFE DISPOSED LONGITUDINALLY OF THE CYLINDER AND HAVING ONE LONGITUDINAL MARGIN IN SHEARING RELATION WITH THE BLADES, MEANS FOR SUPPORTING IN FULL WIDTH AND CONDUCTING LONGITUDINALLY THROUGH THE MACHINE TO AND PAST THE LEDGER KNIFE AND BLADES A STRIP OF FABRIC TO BE SHEARED, TWO RELATIVELY LONG ARMS PIVOTED TO THE FRAME RESPECTIVELY ADJACENT TO AND OUTWARDLY OF THE TWO MARGINS OF THE STRIP FORWARDLY OF THE LEDGER KNIFE AND EACH EXTENDING THEREFROM INWARDLY TOWARD THE OPPOSITE MARGIN OVER AND RELATIVELY INCLINED LONGITUDINALLY TO ONE FACE OF THE STRIP AND MOVABLE ABOUT ITS PIVOT AXIS TOWARD AND FROM THE STRIP, AND MEANS FOR MAINTAINING THE ARMS PIVOTED IN PREDETERMINED PRESSURE CONTACT WITH ADJACENT MARGINAL PORTIONS OF THE STRIP AT SAID ONE FACE, THEREBY REMOVING SLACK FROM SAID PORTIONS
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |