Patent US3141706A successfully refreshed from Google Patents.
US3141706A
Expired / Lapsed
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Air film table
Assignee: Individual
•
Filing: 1961-12-18
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Granted: 1964-07-21
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Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Frederick B Curtenius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:28
CPC Classifications
B; B65; B65H; B65H1/00; B65H1/04; B65G; B65G51/00; B65G51/02; B65G51/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
AN AIR FILM TABLE COMPRISING, A PLATE HAVING A SMOOTH LOAD SUPPORTING SURFACE, A SECTIONAL MANIFOLD POSITIONED ALONG ONE EDGE OF SAID PLATE EXTENDING TO BELOW THE BOTTOM SURFACE OF THE PLATE, SAID PLATE DEFINING A MULTIPLICITY OF BORES DISPERSED OVER ITS SURFACE WITH CONICAL COUNTERBORES AT THEIR UPPER ENDS AND CURVED SURFACES AT THEIR LOWER ENDS DIRECTED TOWARD SAID MANIFOLD, A MULTIPLICITY OF SMALL TUBES EACH HAVING A FLARED END SEATED IN ONE OF SAID CONICAL COUNTERBORES AND BEING CURVED ALONG THE CURVED SURFACE AND LAPPED ALONG THE BOTTOM OF THE PLATE AND EXTENDING INTO SAID MANIFOLD, SAID TUBES BEING TENSIONED BETWEEN SAID MANIFOLD AND THE FLARED ENDS OF THE TUBES, AND MEANS REMOVABLY CLOSING SAID MANIFOLD.
Claim 2
Dependent Claim
118 words
AN AIR FILM TABLE COMPRISING, A PLATE HAVING A SMOOTH LOAD SUPPORTING SURFACE, A SECTIONAL MANIFOLD POSITIONED ALONG ONE EDGE OF SAID PLATE EXTENDING TO BELOW THE BOTTOM SURFACE OF THE PLATE, SAID PLATE DEFINING A MULTIPLICITY OF BORES DISPERSED OVER ITS SURFACE WITH CONICAL COUNTERBORES AT THEIR UPPER ENDS AND CURVED SURFACES AT THEIR LOWER ENDS DIRECTED TOWARD SAID MANIFOLD, A MULTIPLICITY OF SMALL TUBES EACH HAVING A FLARED END SEATED IN ONE OF SAID CONICAL COUNTERBORES AND BEING CURVED ALONG THE CURVED SURFACE AND LAPPED ALONG THE BOTTOM OF THE PLATE AND EXTENDING INTO SAID MANIFOLD, SAID TUBES BEING TENSIONED BETWEEN SAID MANIFOLD AND THE FLARED ENDS OF THE TUBES, AND MEANS REMOVABLY CLOSING SAID MANIFOLD.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |