US3286338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for tensioning sieves
Assignee: Individual
•
Filing: 1964-02-04
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Granted: 1966-11-22
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Expires: 1984-02-04
Abstract
No abstract record available.
Inventors
- 👤 Nicholas J Bohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:14
CPC Classifications
B; B21; B21F; B21F33/00; B21F33/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918; Y10T29/49925; Y10T29/49934; Y10T29/53; Y10T29/53709; Y10T29/53717
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A METHOD OF TENSIONING PRESOLDERED WOVEN WIRE CLOTH SIEVES COMPRISING: PROVIDING A PREASSEMBLED SIEVE STRUCTURE HAVING AN APPER ANNULAR FRAME WITH OUTWARDLY AND DOWNWARDLY TURNED FLANGE PORTIONS ON ITS LOWER MARGIN AND A CONCENTRIC LOWER ANNULAR SKIRT HAVING AN OUTWARDLY AND UPWARDLY ANGLED FLANGE PORTION ON ITS UPPER MARGIN NESTED IN THE ANGLE FORMED HY TEH FLANGE PORTIONS OF SAID UPPER FRAME WITH AN ANNULAR PIECE OF WIRE CLOTH HELD THEREBETWEEN BY MEANS OF FILLETED SOLDER, SIMULTANEOUSLY EXERTING A DOWNWARDLY AND RADIALLY DIRECTED INWARD FORCE ABOUT SUBSTANTIALLY ALL OF THE PERIPHERY OF THE FLANGE OF THE UPPER FRAME UNIFORMLY TO DEFORM SAID ANGLED FLANGE ON SAID LOWER SKIRT DOWNWARDLY AND RADIALLY OUTWARDLY AND SAID TURNED FLANGE ON SAID UPPER ANNULAR FRAME DOWNWADLY AND RADIALLY INWARDLY ABOUT THE EDGE OF SAID RADIALLY OUTWARDLY DEFORMED FLANGE ON SAID SKIRT TO THEREBY INCREASE THE TENSION ON SAID CLOTH.
Claim 2
Independent Claim
145 words
A METHOD OF TENSIONING PRESOLDERED WOVEN WIRE CLOTH SIEVES COMPRISING: PROVIDING A PREASSEMBLED SIEVE STRUCTURE HAVING AN APPER ANNULAR FRAME WITH OUTWARDLY AND DOWNWARDLY TURNED FLANGE PORTIONS ON ITS LOWER MARGIN AND A CONCENTRIC LOWER ANNULAR SKIRT HAVING AN OUTWARDLY AND UPWARDLY ANGLED FLANGE PORTION ON ITS UPPER MARGIN NESTED IN THE ANGLE FORMED HY TEH FLANGE PORTIONS OF SAID UPPER FRAME WITH AN ANNULAR PIECE OF WIRE CLOTH HELD THEREBETWEEN BY MEANS OF FILLETED SOLDER, SIMULTANEOUSLY EXERTING A DOWNWARDLY AND RADIALLY DIRECTED INWARD FORCE ABOUT SUBSTANTIALLY ALL OF THE PERIPHERY OF THE FLANGE OF THE UPPER FRAME UNIFORMLY TO DEFORM SAID ANGLED FLANGE ON SAID LOWER SKIRT DOWNWARDLY AND RADIALLY OUTWARDLY AND SAID TURNED FLANGE ON SAID UPPER ANNULAR FRAME DOWNWADLY AND RADIALLY INWARDLY ABOUT THE EDGE OF SAID RADIALLY OUTWARDLY DEFORMED FLANGE ON SAID SKIRT TO THEREBY INCREASE THE TENSION ON SAID CLOTH.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |