US3143886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for measuring the flat weight of sheet material
Assignee: Individual
•
Filing: 1960-11-07
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Granted: 1964-08-11
•
Expires: 1980-11-07
Abstract
No abstract record available.
Inventors
- 👤 Lippke Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:23
CPC Classifications
G; G01; G01B; G01B15/00; G01G; G01G17/00; G01G17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A SYSTEM FOR CONTINUOUSLY CHECKING THE QUALITY OF A MOVING WEB OF SHEET MATERIAL, COMPRISING A SUPPORTING BASE, MOUNTING MEANS SUSPENDING SAID BASE ABOVE THE PATH OF SAID WEB FOR ENGAGEMENT OF THE LATTER FROM ABOVE WITH LIGHT CONTACT PRESSURE, A FIRST INSTRUMENT ON SAID BASE ADAPTED TO MEASURE THE FLAT WEIGHT OF SAID SHEET MATERIAL, A SECOND INSTRUMENT ON SAID BASE ADJACENT SAID FIRST INSTRUMENT FOR MEASURING THE MOISTURE CONTENT OF SAID SHEET MATERIAL, AND DRIVE MEANS FOR RECIPROCATING SAID BASE ACROSS SAID PATH; SAID FIRST INSTRUMENT INCLUDING A SOURCE OF RADIATION REFLECTABLE BY SAID SHEET MATERIAL, SAID BASE BEING PROVIDED WITH A WINDOW FOR PASSING THE RADIATION FROM SAID SOURCE TO SAID SHEET MATERIAL, RECEIVING
Claim 2
Independent Claim
117 words
A SYSTEM FOR CONTINUOUSLY CHECKING THE QUALITY OF A MOVING WEB OF SHEET MATERIAL, COMPRISING A SUPPORTING BASE, MOUNTING MEANS SUSPENDING SAID BASE ABOVE THE PATH OF SAID WEB FOR ENGAGEMENT OF THE LATTER FROM ABOVE WITH LIGHT CONTACT PRESSURE, A FIRST INSTRUMENT ON SAID BASE ADAPTED TO MEASURE THE FLAT WEIGHT OF SAID SHEET MATERIAL, A SECOND INSTRUMENT ON SAID BASE ADJACENT SAID FIRST INSTRUMENT FOR MEASURING THE MOISTURE CONTENT OF SAID SHEET MATERIAL, AND DRIVE MEANS FOR RECIPROCATING SAID BASE ACROSS SAID PATH; SAID FIRST INSTRUMENT INCLUDING A SOURCE OF RADIATION REFLECTABLE BY SAID SHEET MATERIAL, SAID BASE BEING PROVIDED WITH A WINDOW FOR PASSING THE RADIATION FROM SAID SOURCE TO SAID SHEET MATERIAL, RECEIVING
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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |