US3130303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring coating amounts
Assignee: Primerica Inc
•
Filing: 1960-11-02
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Granted: 1964-04-21
•
Expires: 1980-11-02
Abstract
No abstract record available.
Inventors
- 👤 Dobbins Walter James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:01
CPC Classifications
G; G01; G01B; G01B15/00; G01B15/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
AN APPARATUS FOR MEASURING THE AMOUNT OF COATING BEING APPLIED TO A MOVING FLAT SURFACE COMPRISING, COATING MEANS FOR APPLYING WET COATING TO SAID SURFACE, AT LEAST A PORTION OF SAID COATING MEANS BEING SUBSTANTIALLY CYLINDRICAL AND HAVING ON THE SURFACE THEREOF A THIN FILM OF SAID WET COATING, THE SURFACE OF SAID CYLINDRICAL PORTION IN CONTACT WITH SAID THIN FILM BEING COMPOSED OF A NON-MAGNETIC METAL, THE ATOMS ESSENTIALLY COMPOSING SAID NON-MAGNETIC METAL HAVING AN ATOMIC NUMBER SUBSTANTIALLY DIFFERENT FROM THE ATOMS ESSENTIALLY COMPOSING SAID THIN FILM MEANS FOR MOVING SAID FLAT SURFACE AND SAID COATING MEANS RELATIVE TO EACH OTHER, RADIATION MEANS ADJACENT SAID NONMAGNETIC METAL AND SAID THIN FILM AND REMOTE FROM SAID FLAT SURFACE FOR DIRECTING A STREAM OF BETA RAYS AGAINST AND THROUGH SAID THIN FILM SAID THIN FILM PRESENTING A FINITE THICKNESS TO PENETRATION BY SAID BETA RAYS AND SAID NONMAGNETIC METAL PRESENTING AN INFINITE THICKNESS TO PENETRATION BY SAID BETA RAYS, DETECTOR MEANS FOR DETECTING A QUANTITY OF BETA RAYS BACKSCATTERED FROM SAID NON-MAGNETIC METAL AND SAID THIN FILM SAID QUANTITY BEING PROPORTIONAL TO THE AMOUNT OF COATING BEING APPLIED TO SAID FLAT SURFACE, AND VISUAL INSPECTION MEANS COUPLED WITH SAID DETECTOR MEANS FOR VISUALLY INDICATING SAID QUANTITY.
Claim 2
Independent Claim
205 words
AN APPARATUS FOR MEASURING THE AMOUNT OF COATING BEING APPLIED TO A MOVING FLAT SURFACE COMPRISING, COATING MEANS FOR APPLYING WET COATING TO SAID SURFACE, AT LEAST A PORTION OF SAID COATING MEANS BEING SUBSTANTIALLY CYLINDRICAL AND HAVING ON THE SURFACE THEREOF A THIN FILM OF SAID WET COATING, THE SURFACE OF SAID CYLINDRICAL PORTION IN CONTACT WITH SAID THIN FILM BEING COMPOSED OF A NON-MAGNETIC METAL, THE ATOMS ESSENTIALLY COMPOSING SAID NON-MAGNETIC METAL HAVING AN ATOMIC NUMBER SUBSTANTIALLY DIFFERENT FROM THE ATOMS ESSENTIALLY COMPOSING SAID THIN FILM MEANS FOR MOVING SAID FLAT SURFACE AND SAID COATING MEANS RELATIVE TO EACH OTHER, RADIATION MEANS ADJACENT SAID NONMAGNETIC METAL AND SAID THIN FILM AND REMOTE FROM SAID FLAT SURFACE FOR DIRECTING A STREAM OF BETA RAYS AGAINST AND THROUGH SAID THIN FILM SAID THIN FILM PRESENTING A FINITE THICKNESS TO PENETRATION BY SAID BETA RAYS AND SAID NONMAGNETIC METAL PRESENTING AN INFINITE THICKNESS TO PENETRATION BY SAID BETA RAYS, DETECTOR MEANS FOR DETECTING A QUANTITY OF BETA RAYS BACKSCATTERED FROM SAID NON-MAGNETIC METAL AND SAID THIN FILM SAID QUANTITY BEING PROPORTIONAL TO THE AMOUNT OF COATING BEING APPLIED TO SAID FLAT SURFACE, AND VISUAL INSPECTION MEANS COUPLED WITH SAID DETECTOR MEANS FOR VISUALLY INDICATING SAID QUANTITY.
References Cited (Backward Citations)
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Cited
US2711480A
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US2967934A
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US2943202A
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US2897371A
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US2988641A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |